/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the COPYING file, which can be found at the root of the source code * * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * Module Info: This module contains most of the "core" functionality of * the H5T interface, including the API initialization code, etc. * Many routines that are infrequently used, or are specialized for * one particular datatype class are in another module. */ /****************/ /* Module Setup */ /****************/ #include "H5Tmodule.h" /* This source code file is part of the H5T module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5CXprivate.h" /* API Contexts */ #include "H5Dprivate.h" /* Datasets */ #include "H5Eprivate.h" /* Error handling */ #include "H5ESprivate.h" /* Event Sets */ #include "H5Fprivate.h" /* Files */ #include "H5FLprivate.h" /* Free Lists */ #include "H5FOprivate.h" /* File objects */ #include "H5Gprivate.h" /* Groups */ #include "H5Iprivate.h" /* IDs */ #include "H5MMprivate.h" /* Memory management */ #include "H5Pprivate.h" /* Property lists */ #include "H5Tpkg.h" /* Datatypes */ #include "H5VLprivate.h" /* Virtual Object Layer */ /****************/ /* Local Macros */ /****************/ #define H5T_ENCODE_VERSION 0 /* * Type initialization macros * * These use the "template macro" technique to reduce the amount of gratuitous * duplicated code when initializing the datatypes for the library. The main * template macro is the H5T_INIT_TYPE() macro below. * */ /* Define the code template for bitfields for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_BITFIELD_CORE \ { \ dt->shared->type = H5T_BITFIELD; \ } #define H5T_INIT_TYPE_BITFIELD_COMMON(ENDIANNESS) \ { \ H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ H5T_INIT_TYPE_BITFIELD_CORE; \ } #define H5T_INIT_TYPE_BITFIELDLE_CORE \ { \ H5T_INIT_TYPE_BITFIELD_COMMON(H5T_ORDER_LE) \ } #define H5T_INIT_TYPE_BITFIELDBE_CORE \ { \ H5T_INIT_TYPE_BITFIELD_COMMON(H5T_ORDER_BE) \ } /* Define the code template for times for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_TIME_CORE \ { \ dt->shared->type = H5T_TIME; \ } /* Define the code template for types which reset the offset for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_OFFSET_CORE \ { \ dt->shared->u.atomic.offset = 0; \ } /* Define common code for all numeric types (floating-point & int, signed & unsigned) */ #define H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ { \ dt->shared->u.atomic.order = ENDIANNESS; \ dt->shared->u.atomic.offset = 0; \ dt->shared->u.atomic.lsb_pad = H5T_PAD_ZERO; \ dt->shared->u.atomic.msb_pad = H5T_PAD_ZERO; \ } /* Define the code templates for standard floats for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_FLOAT_COMMON(ENDIANNESS) \ { \ H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ dt->shared->u.atomic.u.f.sign = 31; \ dt->shared->u.atomic.u.f.epos = 23; \ dt->shared->u.atomic.u.f.esize = 8; \ dt->shared->u.atomic.u.f.ebias = 0x7f; \ dt->shared->u.atomic.u.f.mpos = 0; \ dt->shared->u.atomic.u.f.msize = 23; \ dt->shared->u.atomic.u.f.norm = H5T_NORM_IMPLIED; \ dt->shared->u.atomic.u.f.pad = H5T_PAD_ZERO; \ } #define H5T_INIT_TYPE_FLOATLE_CORE \ { \ H5T_INIT_TYPE_FLOAT_COMMON(H5T_ORDER_LE) \ } #define H5T_INIT_TYPE_FLOATBE_CORE \ { \ H5T_INIT_TYPE_FLOAT_COMMON(H5T_ORDER_BE) \ } /* Define the code templates for standard doubles for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_DOUBLE_COMMON(ENDIANNESS) \ { \ H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ dt->shared->u.atomic.u.f.sign = 63; \ dt->shared->u.atomic.u.f.epos = 52; \ dt->shared->u.atomic.u.f.esize = 11; \ dt->shared->u.atomic.u.f.ebias = 0x03ff; \ dt->shared->u.atomic.u.f.mpos = 0; \ dt->shared->u.atomic.u.f.msize = 52; \ dt->shared->u.atomic.u.f.norm = H5T_NORM_IMPLIED; \ dt->shared->u.atomic.u.f.pad = H5T_PAD_ZERO; \ } #define H5T_INIT_TYPE_DOUBLELE_CORE \ { \ H5T_INIT_TYPE_DOUBLE_COMMON(H5T_ORDER_LE) \ } #define H5T_INIT_TYPE_DOUBLEBE_CORE \ { \ H5T_INIT_TYPE_DOUBLE_COMMON(H5T_ORDER_BE) \ } /* Define the code templates for VAX float for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_FLOATVAX_CORE \ { \ H5T_INIT_TYPE_NUM_COMMON(H5T_ORDER_VAX) \ dt->shared->u.atomic.u.f.sign = 31; \ dt->shared->u.atomic.u.f.epos = 23; \ dt->shared->u.atomic.u.f.esize = 8; \ dt->shared->u.atomic.u.f.ebias = 0x81; \ dt->shared->u.atomic.u.f.mpos = 0; \ dt->shared->u.atomic.u.f.msize = 23; \ dt->shared->u.atomic.u.f.norm = H5T_NORM_IMPLIED; \ dt->shared->u.atomic.u.f.pad = H5T_PAD_ZERO; \ dt->shared->version = H5O_DTYPE_VERSION_3; \ } /* Define the code templates for VAX double for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_DOUBLEVAX_CORE \ { \ H5T_INIT_TYPE_NUM_COMMON(H5T_ORDER_VAX) \ dt->shared->u.atomic.u.f.sign = 63; \ dt->shared->u.atomic.u.f.epos = 52; \ dt->shared->u.atomic.u.f.esize = 11; \ dt->shared->u.atomic.u.f.ebias = 0x0401; \ dt->shared->u.atomic.u.f.mpos = 0; \ dt->shared->u.atomic.u.f.msize = 52; \ dt->shared->u.atomic.u.f.norm = H5T_NORM_IMPLIED; \ dt->shared->u.atomic.u.f.pad = H5T_PAD_ZERO; \ dt->shared->version = H5O_DTYPE_VERSION_3; \ } /* Define the code templates for standard signed integers for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_SINT_COMMON(ENDIANNESS) \ { \ H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ dt->shared->u.atomic.u.i.sign = H5T_SGN_2; \ } #define H5T_INIT_TYPE_SINTLE_CORE \ { \ H5T_INIT_TYPE_SINT_COMMON(H5T_ORDER_LE) \ } #define H5T_INIT_TYPE_SINTBE_CORE \ { \ H5T_INIT_TYPE_SINT_COMMON(H5T_ORDER_BE) \ } /* Define the code templates for standard unsigned integers for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_UINT_COMMON(ENDIANNESS) \ { \ H5T_INIT_TYPE_NUM_COMMON(ENDIANNESS) \ dt->shared->u.atomic.u.i.sign = H5T_SGN_NONE; \ } #define H5T_INIT_TYPE_UINTLE_CORE \ { \ H5T_INIT_TYPE_UINT_COMMON(H5T_ORDER_LE) \ } #define H5T_INIT_TYPE_UINTBE_CORE \ { \ H5T_INIT_TYPE_UINT_COMMON(H5T_ORDER_BE) \ } /* Define a macro for common code for all newly allocate datatypes */ #define H5T_INIT_TYPE_ALLOC_COMMON(TYPE) \ { \ dt->sh_loc.type = H5O_SHARE_TYPE_UNSHARED; \ dt->shared->type = TYPE; \ } /* Define the code templates for opaque for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_OPAQ_CORE \ { \ H5T_INIT_TYPE_ALLOC_COMMON(H5T_OPAQUE) \ dt->shared->u.opaque.tag = H5MM_xstrdup(""); \ } /* Define the code templates for strings for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_STRING_COMMON \ { \ H5T_INIT_TYPE_ALLOC_COMMON(H5T_STRING) \ H5T_INIT_TYPE_NUM_COMMON(H5T_ORDER_NONE) \ dt->shared->u.atomic.u.s.cset = H5F_DEFAULT_CSET; \ } #define H5T_INIT_TYPE_CSTRING_CORE \ { \ H5T_INIT_TYPE_STRING_COMMON \ dt->shared->u.atomic.u.s.pad = H5T_STR_NULLTERM; \ } #define H5T_INIT_TYPE_FORSTRING_CORE \ { \ H5T_INIT_TYPE_STRING_COMMON \ dt->shared->u.atomic.u.s.pad = H5T_STR_SPACEPAD; \ } /* Define the code templates for references for the "GUTS" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_REF_COMMON \ { \ H5T_INIT_TYPE_ALLOC_COMMON(H5T_REFERENCE) \ H5T_INIT_TYPE_NUM_COMMON(H5T_ORDER_NONE) \ dt->shared->force_conv = true; \ dt->shared->u.atomic.u.r.file = NULL; \ dt->shared->u.atomic.u.r.loc = H5T_LOC_BADLOC; \ dt->shared->u.atomic.u.r.cls = NULL; \ } #define H5T_INIT_TYPE_OBJREF_CORE \ { \ H5T_INIT_TYPE_REF_COMMON \ dt->shared->u.atomic.u.r.rtype = H5R_OBJECT1; \ dt->shared->u.atomic.u.r.opaque = false; \ dt->shared->u.atomic.u.r.version = 0; \ } #define H5T_INIT_TYPE_REGREF_CORE \ { \ H5T_INIT_TYPE_REF_COMMON \ dt->shared->u.atomic.u.r.rtype = H5R_DATASET_REGION1; \ dt->shared->u.atomic.u.r.opaque = false; \ dt->shared->u.atomic.u.r.version = 0; \ } /* rtype value is only used as a placeholder to differentiate the type from * other types, any opaque (i.e. "new") reference type could be used. */ #define H5T_INIT_TYPE_REF_CORE \ { \ H5T_INIT_TYPE_REF_COMMON \ dt->shared->u.atomic.u.r.rtype = H5R_OBJECT2; \ dt->shared->u.atomic.u.r.opaque = true; \ dt->shared->u.atomic.u.r.version = H5R_ENCODE_VERSION; \ dt->shared->version = H5O_DTYPE_VERSION_4; \ } /* Define the code templates for the "SIZE_TMPL" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_SET_SIZE(SIZE) \ { \ dt->shared->size = SIZE; \ dt->shared->u.atomic.prec = 8 * (SIZE); \ } #define H5T_INIT_TYPE_NOSET_SIZE(SIZE) \ { \ } /* Define the code templates for the "CRT_TMPL" in the H5T_INIT_TYPE macro */ #define H5T_INIT_TYPE_COPY_CREATE(BASE) \ { \ /* Base off of existing datatype */ \ if (NULL == (dt = H5T_copy(BASE, H5T_COPY_TRANSIENT))) \ HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "duplicating base type failed"); \ } #define H5T_INIT_TYPE_ALLOC_CREATE(BASE) \ { \ /* Allocate new datatype info */ \ if (NULL == (dt = H5T__alloc())) \ HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, FAIL, "memory allocation failed"); \ } #define H5T_INIT_TYPE(GUTS, GLOBAL, CRT_TMPL, BASE, SIZE_TMPL, SIZE) \ { \ /* Get new datatype struct */ \ H5_GLUE3(H5T_INIT_TYPE_, CRT_TMPL, _CREATE) \ (BASE) \ \ /* Adjust information for all types */ \ dt->shared->state = H5T_STATE_IMMUTABLE; \ H5_GLUE3(H5T_INIT_TYPE_, SIZE_TMPL, _SIZE) \ (SIZE) \ \ /* Adjust information for this type */ \ H5_GLUE3(H5T_INIT_TYPE_, GUTS, _CORE) \ \ /* Register result */ \ if (((GLOBAL) = H5I_register(H5I_DATATYPE, dt, false)) < 0) \ HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register datatype atom"); \ } /******************/ /* Local Typedefs */ /******************/ /* Typedef for recursive const-correct datatype copying routines */ typedef H5T_t *(*H5T_copy_func_t)(H5T_t *old_dt); /********************/ /* Local Prototypes */ /********************/ static herr_t H5T__register_int(H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5T_lib_conv_t func); static herr_t H5T__register(H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5T_conv_func_t *conv); static htri_t H5T__compiler_conv(H5T_t *src, H5T_t *dst); static herr_t H5T__set_size(H5T_t *dt, size_t size); static herr_t H5T__close_cb(H5T_t *dt, void **request); static H5T_path_t *H5T__path_find_real(const H5T_t *src, const H5T_t *dst, const char *name, H5T_conv_func_t *conv); static bool H5T_path_match(H5T_path_t *path, H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5VL_object_t *owned_vol_obj, H5T_conv_t func); static bool H5T_path_match_find_type_with_volobj(const H5T_t *datatype, const H5VL_object_t *owned_vol_obj); static bool H5T__detect_vlen_ref(const H5T_t *dt); static H5T_t *H5T__initiate_copy(const H5T_t *old_dt); static H5T_t *H5T__copy_transient(H5T_t *old_dt); static H5T_t *H5T__copy_all(H5T_t *old_dt); static herr_t H5T__complete_copy(H5T_t *new_dt, const H5T_t *old_dt, H5T_shared_t *reopened_fo, bool set_memory_type, H5T_copy_func_t copyfn); /*****************************/ /* Library Private Variables */ /*****************************/ /* The native endianness of the platform */ H5T_order_t H5T_native_order_g = H5T_ORDER_ERROR; /*********************/ /* Package Variables */ /*********************/ /* * Predefined data types. These are initialized at runtime by H5T_init(). * * If more of these are added, the new ones must be added to the list of * types to reset in H5T_term_package(). */ hid_t H5T_IEEE_F32BE_g = FAIL; hid_t H5T_IEEE_F32LE_g = FAIL; hid_t H5T_IEEE_F64BE_g = FAIL; hid_t H5T_IEEE_F64LE_g = FAIL; hid_t H5T_VAX_F32_g = FAIL; hid_t H5T_VAX_F64_g = FAIL; hid_t H5T_STD_I8BE_g = FAIL; hid_t H5T_STD_I8LE_g = FAIL; hid_t H5T_STD_I16BE_g = FAIL; hid_t H5T_STD_I16LE_g = FAIL; hid_t H5T_STD_I32BE_g = FAIL; hid_t H5T_STD_I32LE_g = FAIL; hid_t H5T_STD_I64BE_g = FAIL; hid_t H5T_STD_I64LE_g = FAIL; hid_t H5T_STD_U8BE_g = FAIL; hid_t H5T_STD_U8LE_g = FAIL; hid_t H5T_STD_U16BE_g = FAIL; hid_t H5T_STD_U16LE_g = FAIL; hid_t H5T_STD_U32BE_g = FAIL; hid_t H5T_STD_U32LE_g = FAIL; hid_t H5T_STD_U64BE_g = FAIL; hid_t H5T_STD_U64LE_g = FAIL; hid_t H5T_STD_B8BE_g = FAIL; hid_t H5T_STD_B8LE_g = FAIL; hid_t H5T_STD_B16BE_g = FAIL; hid_t H5T_STD_B16LE_g = FAIL; hid_t H5T_STD_B32BE_g = FAIL; hid_t H5T_STD_B32LE_g = FAIL; hid_t H5T_STD_B64BE_g = FAIL; hid_t H5T_STD_B64LE_g = FAIL; hid_t H5T_STD_REF_OBJ_g = FAIL; hid_t H5T_STD_REF_DSETREG_g = FAIL; hid_t H5T_STD_REF_g = FAIL; hid_t H5T_UNIX_D32BE_g = FAIL; hid_t H5T_UNIX_D32LE_g = FAIL; hid_t H5T_UNIX_D64BE_g = FAIL; hid_t H5T_UNIX_D64LE_g = FAIL; hid_t H5T_C_S1_g = FAIL; hid_t H5T_FORTRAN_S1_g = FAIL; hid_t H5T_NATIVE_SCHAR_g = FAIL; hid_t H5T_NATIVE_UCHAR_g = FAIL; hid_t H5T_NATIVE_SHORT_g = FAIL; hid_t H5T_NATIVE_USHORT_g = FAIL; hid_t H5T_NATIVE_INT_g = FAIL; hid_t H5T_NATIVE_UINT_g = FAIL; hid_t H5T_NATIVE_LONG_g = FAIL; hid_t H5T_NATIVE_ULONG_g = FAIL; hid_t H5T_NATIVE_LLONG_g = FAIL; hid_t H5T_NATIVE_ULLONG_g = FAIL; hid_t H5T_NATIVE_FLOAT_g = FAIL; hid_t H5T_NATIVE_DOUBLE_g = FAIL; hid_t H5T_NATIVE_LDOUBLE_g = FAIL; hid_t H5T_NATIVE_B8_g = FAIL; hid_t H5T_NATIVE_B16_g = FAIL; hid_t H5T_NATIVE_B32_g = FAIL; hid_t H5T_NATIVE_B64_g = FAIL; hid_t H5T_NATIVE_OPAQUE_g = FAIL; hid_t H5T_NATIVE_HADDR_g = FAIL; hid_t H5T_NATIVE_HSIZE_g = FAIL; hid_t H5T_NATIVE_HSSIZE_g = FAIL; hid_t H5T_NATIVE_HERR_g = FAIL; hid_t H5T_NATIVE_HBOOL_g = FAIL; hid_t H5T_NATIVE_INT8_g = FAIL; hid_t H5T_NATIVE_UINT8_g = FAIL; hid_t H5T_NATIVE_INT_LEAST8_g = FAIL; hid_t H5T_NATIVE_UINT_LEAST8_g = FAIL; hid_t H5T_NATIVE_INT_FAST8_g = FAIL; hid_t H5T_NATIVE_UINT_FAST8_g = FAIL; hid_t H5T_NATIVE_INT16_g = FAIL; hid_t H5T_NATIVE_UINT16_g = FAIL; hid_t H5T_NATIVE_INT_LEAST16_g = FAIL; hid_t H5T_NATIVE_UINT_LEAST16_g = FAIL; hid_t H5T_NATIVE_INT_FAST16_g = FAIL; hid_t H5T_NATIVE_UINT_FAST16_g = FAIL; hid_t H5T_NATIVE_INT32_g = FAIL; hid_t H5T_NATIVE_UINT32_g = FAIL; hid_t H5T_NATIVE_INT_LEAST32_g = FAIL; hid_t H5T_NATIVE_UINT_LEAST32_g = FAIL; hid_t H5T_NATIVE_INT_FAST32_g = FAIL; hid_t H5T_NATIVE_UINT_FAST32_g = FAIL; hid_t H5T_NATIVE_INT64_g = FAIL; hid_t H5T_NATIVE_UINT64_g = FAIL; hid_t H5T_NATIVE_INT_LEAST64_g = FAIL; hid_t H5T_NATIVE_UINT_LEAST64_g = FAIL; hid_t H5T_NATIVE_INT_FAST64_g = FAIL; hid_t H5T_NATIVE_UINT_FAST64_g = FAIL; /* * Alignment constraints for HDF5 types. Accessing objects of these * types with improper alignment invokes C undefined behavior, so the * library lays out objects with correct alignment, always. * * A value of N indicates that the data must be aligned on an address * ADDR such that 0 == ADDR mod N. When N=1 no alignment is required; * N=0 implies that alignment constraints were not calculated. These * values are used for structure alignment. */ size_t H5T_POINTER_ALIGN_g = 0; size_t H5T_HVL_ALIGN_g = 0; size_t H5T_HOBJREF_ALIGN_g = 0; size_t H5T_HDSETREGREF_ALIGN_g = 0; size_t H5T_REF_ALIGN_g = 0; size_t H5T_NATIVE_SCHAR_ALIGN_g = 0; size_t H5T_NATIVE_UCHAR_ALIGN_g = 0; size_t H5T_NATIVE_SHORT_ALIGN_g = 0; size_t H5T_NATIVE_USHORT_ALIGN_g = 0; size_t H5T_NATIVE_INT_ALIGN_g = 0; size_t H5T_NATIVE_UINT_ALIGN_g = 0; size_t H5T_NATIVE_LONG_ALIGN_g = 0; size_t H5T_NATIVE_ULONG_ALIGN_g = 0; size_t H5T_NATIVE_LLONG_ALIGN_g = 0; size_t H5T_NATIVE_ULLONG_ALIGN_g = 0; size_t H5T_NATIVE_FLOAT_ALIGN_g = 0; size_t H5T_NATIVE_DOUBLE_ALIGN_g = 0; size_t H5T_NATIVE_LDOUBLE_ALIGN_g = 0; /* Alignment constraints for C99 types */ size_t H5T_NATIVE_INT8_ALIGN_g = 0; size_t H5T_NATIVE_UINT8_ALIGN_g = 0; size_t H5T_NATIVE_INT_LEAST8_ALIGN_g = 0; size_t H5T_NATIVE_UINT_LEAST8_ALIGN_g = 0; size_t H5T_NATIVE_INT_FAST8_ALIGN_g = 0; size_t H5T_NATIVE_UINT_FAST8_ALIGN_g = 0; size_t H5T_NATIVE_INT16_ALIGN_g = 0; size_t H5T_NATIVE_UINT16_ALIGN_g = 0; size_t H5T_NATIVE_INT_LEAST16_ALIGN_g = 0; size_t H5T_NATIVE_UINT_LEAST16_ALIGN_g = 0; size_t H5T_NATIVE_INT_FAST16_ALIGN_g = 0; size_t H5T_NATIVE_UINT_FAST16_ALIGN_g = 0; size_t H5T_NATIVE_INT32_ALIGN_g = 0; size_t H5T_NATIVE_UINT32_ALIGN_g = 0; size_t H5T_NATIVE_INT_LEAST32_ALIGN_g = 0; size_t H5T_NATIVE_UINT_LEAST32_ALIGN_g = 0; size_t H5T_NATIVE_INT_FAST32_ALIGN_g = 0; size_t H5T_NATIVE_UINT_FAST32_ALIGN_g = 0; size_t H5T_NATIVE_INT64_ALIGN_g = 0; size_t H5T_NATIVE_UINT64_ALIGN_g = 0; size_t H5T_NATIVE_INT_LEAST64_ALIGN_g = 0; size_t H5T_NATIVE_UINT_LEAST64_ALIGN_g = 0; size_t H5T_NATIVE_INT_FAST64_ALIGN_g = 0; size_t H5T_NATIVE_UINT_FAST64_ALIGN_g = 0; /* Useful floating-point values for conversion routines */ /* (+/- Inf for all floating-point types) */ float H5T_NATIVE_FLOAT_POS_INF_g = 0.0F; float H5T_NATIVE_FLOAT_NEG_INF_g = 0.0F; double H5T_NATIVE_DOUBLE_POS_INF_g = 0.0; double H5T_NATIVE_DOUBLE_NEG_INF_g = 0.0; /* Declare the free list for H5T_t's and H5T_shared_t's */ H5FL_DEFINE(H5T_t); H5FL_DEFINE(H5T_shared_t); /* Format version bounds for datatype */ const unsigned H5O_dtype_ver_bounds[] = { H5O_DTYPE_VERSION_1, /* H5F_LIBVER_EARLIEST */ H5O_DTYPE_VERSION_3, /* H5F_LIBVER_V18 */ H5O_DTYPE_VERSION_3, /* H5F_LIBVER_V110 */ H5O_DTYPE_VERSION_4, /* H5F_LIBVER_V112 */ H5O_DTYPE_VERSION_4, /* H5F_LIBVER_V114 */ H5O_DTYPE_VERSION_LATEST /* H5F_LIBVER_LATEST */ }; /*******************/ /* Local Variables */ /*******************/ /* * The path database. Each path has a source and destination data type pair * which is used as the key by which the `entries' array is sorted. */ static struct { int npaths; /*number of paths defined */ size_t apaths; /*number of paths allocated */ H5T_path_t **path; /*sorted array of path pointers */ int nsoft; /*number of soft conversions defined */ size_t asoft; /*number of soft conversions allocated */ H5T_soft_t *soft; /*unsorted array of soft conversions */ } H5T_g; /* Declare the free list for H5T_path_t's */ H5FL_DEFINE_STATIC(H5T_path_t); /* Datatype ID class */ static const H5I_class_t H5I_DATATYPE_CLS[1] = {{ H5I_DATATYPE, /* ID class value */ 0, /* Class flags */ 8, /* # of reserved IDs for class */ (H5I_free_t)H5T__close_cb /* Callback routine for closing objects of this class */ }}; /*------------------------------------------------------------------------- * Function: H5T__init_inf * * Purpose: Initialize the +/- Infinity floating-poing values for type * conversion. * * Return: Success: non-negative * Failure: negative * *------------------------------------------------------------------------- */ static herr_t H5T__init_inf(void) { H5T_t *dst_p; /* Datatype type operate on */ H5T_atomic_t *dst; /* Datatype's atomic info */ uint8_t *d; /* Pointer to value to set */ size_t half_size; /* Half the type size */ size_t u; /* Local index value */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Get the float datatype */ if (NULL == (dst_p = (H5T_t *)H5I_object(H5T_NATIVE_FLOAT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); dst = &dst_p->shared->u.atomic; /* Check that we can re-order the bytes correctly */ if (H5T_ORDER_LE != H5T_native_order_g && H5T_ORDER_BE != H5T_native_order_g) HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order"); /* +Inf */ d = (uint8_t *)&H5T_NATIVE_FLOAT_POS_INF_g; H5T__bit_set(d, dst->u.f.sign, (size_t)1, false); H5T__bit_set(d, dst->u.f.epos, dst->u.f.esize, true); H5T__bit_set(d, dst->u.f.mpos, dst->u.f.msize, false); /* Swap the bytes if the machine architecture is big-endian */ if (H5T_ORDER_BE == H5T_native_order_g) { half_size = dst_p->shared->size / 2; for (u = 0; u < half_size; u++) { uint8_t tmp = d[dst_p->shared->size - (u + 1)]; d[dst_p->shared->size - (u + 1)] = d[u]; d[u] = tmp; } /* end for */ } /* end if */ /* -Inf */ d = (uint8_t *)&H5T_NATIVE_FLOAT_NEG_INF_g; H5T__bit_set(d, dst->u.f.sign, (size_t)1, true); H5T__bit_set(d, dst->u.f.epos, dst->u.f.esize, true); H5T__bit_set(d, dst->u.f.mpos, dst->u.f.msize, false); /* Swap the bytes if the machine architecture is big-endian */ if (H5T_ORDER_BE == H5T_native_order_g) { half_size = dst_p->shared->size / 2; for (u = 0; u < half_size; u++) { uint8_t tmp = d[dst_p->shared->size - (u + 1)]; d[dst_p->shared->size - (u + 1)] = d[u]; d[u] = tmp; } /* end for */ } /* end if */ /* Get the double datatype */ if (NULL == (dst_p = (H5T_t *)H5I_object(H5T_NATIVE_DOUBLE_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); dst = &dst_p->shared->u.atomic; /* Check that we can re-order the bytes correctly */ if (H5T_ORDER_LE != H5T_native_order_g && H5T_ORDER_BE != H5T_native_order_g) HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order"); /* +Inf */ d = (uint8_t *)&H5T_NATIVE_DOUBLE_POS_INF_g; H5T__bit_set(d, dst->u.f.sign, (size_t)1, false); H5T__bit_set(d, dst->u.f.epos, dst->u.f.esize, true); H5T__bit_set(d, dst->u.f.mpos, dst->u.f.msize, false); /* Swap the bytes if the machine architecture is big-endian */ if (H5T_ORDER_BE == H5T_native_order_g) { half_size = dst_p->shared->size / 2; for (u = 0; u < half_size; u++) { uint8_t tmp = d[dst_p->shared->size - (u + 1)]; d[dst_p->shared->size - (u + 1)] = d[u]; d[u] = tmp; } /* end for */ } /* end if */ /* -Inf */ d = (uint8_t *)&H5T_NATIVE_DOUBLE_NEG_INF_g; H5T__bit_set(d, dst->u.f.sign, (size_t)1, true); H5T__bit_set(d, dst->u.f.epos, dst->u.f.esize, true); H5T__bit_set(d, dst->u.f.mpos, dst->u.f.msize, false); /* Swap the bytes if the machine architecture is big-endian */ if (H5T_ORDER_BE == H5T_native_order_g) { half_size = dst_p->shared->size / 2; for (u = 0; u < half_size; u++) { uint8_t tmp = d[dst_p->shared->size - (u + 1)]; d[dst_p->shared->size - (u + 1)] = d[u]; d[u] = tmp; } /* end for */ } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__init_inf() */ /*------------------------------------------------------------------------- * Function: H5T_init * * Purpose: Initialize the interface from some other layer. * * Return: Success: non-negative * Failure: negative *------------------------------------------------------------------------- */ herr_t H5T_init(void) { H5T_t *native_schar = NULL; /* Datatype structure for native signed char */ H5T_t *native_uchar = NULL; /* Datatype structure for native unsigned char */ H5T_t *native_short = NULL; /* Datatype structure for native short */ H5T_t *native_ushort = NULL; /* Datatype structure for native unsigned short */ H5T_t *native_int = NULL; /* Datatype structure for native int */ H5T_t *native_uint = NULL; /* Datatype structure for native unsigned int */ H5T_t *native_long = NULL; /* Datatype structure for native long */ H5T_t *native_ulong = NULL; /* Datatype structure for native unsigned long */ H5T_t *native_llong = NULL; /* Datatype structure for native long long */ H5T_t *native_ullong = NULL; /* Datatype structure for native unsigned long long */ H5T_t *native_float = NULL; /* Datatype structure for native float */ H5T_t *native_double = NULL; /* Datatype structure for native double */ H5T_t *native_ldouble = NULL; /* Datatype structure for native long double */ H5T_t *std_u8le = NULL; /* Datatype structure for unsigned 8-bit little-endian integer */ H5T_t *std_u8be = NULL; /* Datatype structure for unsigned 8-bit big-endian integer */ H5T_t *std_u16le = NULL; /* Datatype structure for unsigned 16-bit little-endian integer */ H5T_t *std_u16be = NULL; /* Datatype structure for unsigned 16-bit big-endian integer */ H5T_t *std_u32le = NULL; /* Datatype structure for unsigned 32-bit little-endian integer */ H5T_t *std_u32be = NULL; /* Datatype structure for unsigned 32-bit big-endian integer */ H5T_t *std_u64le = NULL; /* Datatype structure for unsigned 64-bit little-endian integer */ H5T_t *std_u64be = NULL; /* Datatype structure for unsigned 64-bit big-endian integer */ H5T_t *dt = NULL; H5T_t *fixedpt = NULL; /* Datatype structure for native int */ H5T_t *floatpt = NULL; /* Datatype structure for native float */ H5T_t *string = NULL; /* Datatype structure for C string */ H5T_t *bitfield = NULL; /* Datatype structure for bitfield */ H5T_t *compound = NULL; /* Datatype structure for compound objects */ H5T_t *enum_type = NULL; /* Datatype structure for enum objects */ H5T_t *vlen = NULL; /* Datatype structure for vlen objects */ H5T_t *array = NULL; /* Datatype structure for array objects */ H5T_t *objref = NULL; /* Datatype structure for deprecated reference objects */ H5T_t *regref = NULL; /* Datatype structure for deprecated region references */ H5T_t *ref = NULL; /* Datatype structure for opaque references */ hsize_t dim[1] = {1}; /* Dimension info for array datatype */ herr_t status; bool copied_dtype = true; /* Flag to indicate whether datatype was copied or allocated (for error cleanup) */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Initialize the ID group for the file IDs */ if (H5I_register_type(H5I_DATATYPE_CLS) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize interface"); /* Make certain there aren't too many classes of datatypes defined */ /* Only 16 (numbered 0-15) are supported in the current file format */ HDcompile_assert(H5T_NCLASSES < 16); /* Initialize native floating-point datatypes */ if (H5T__init_native_float_types() < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize floating-point types"); /* Initialize all other native types */ if (H5T__init_native_internal() < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize integers"); /* Get the atomic datatype structures needed by the initialization code below */ if (NULL == (native_schar = (H5T_t *)H5I_object(H5T_NATIVE_SCHAR_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_uchar = (H5T_t *)H5I_object(H5T_NATIVE_UCHAR_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_short = (H5T_t *)H5I_object(H5T_NATIVE_SHORT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_ushort = (H5T_t *)H5I_object(H5T_NATIVE_USHORT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_int = (H5T_t *)H5I_object(H5T_NATIVE_INT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_uint = (H5T_t *)H5I_object(H5T_NATIVE_UINT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_long = (H5T_t *)H5I_object(H5T_NATIVE_LONG_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_ulong = (H5T_t *)H5I_object(H5T_NATIVE_ULONG_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_llong = (H5T_t *)H5I_object(H5T_NATIVE_LLONG_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_ullong = (H5T_t *)H5I_object(H5T_NATIVE_ULLONG_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_float = (H5T_t *)H5I_object(H5T_NATIVE_FLOAT_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_double = (H5T_t *)H5I_object(H5T_NATIVE_DOUBLE_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); if (NULL == (native_ldouble = (H5T_t *)H5I_object(H5T_NATIVE_LDOUBLE_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype object"); /*------------------------------------------------------------ * Derived native types *------------------------------------------------------------ */ /* 1-byte bit field */ H5T_INIT_TYPE(BITFIELD, H5T_NATIVE_B8_g, COPY, native_uint, SET, 1) /* 2-byte bit field */ H5T_INIT_TYPE(BITFIELD, H5T_NATIVE_B16_g, COPY, native_uint, SET, 2) /* 4-byte bit field */ H5T_INIT_TYPE(BITFIELD, H5T_NATIVE_B32_g, COPY, native_uint, SET, 4) /* 8-byte bit field */ H5T_INIT_TYPE(BITFIELD, H5T_NATIVE_B64_g, COPY, native_uint, SET, 8) /* haddr_t */ H5T_INIT_TYPE(OFFSET, H5T_NATIVE_HADDR_g, COPY, native_uint, SET, sizeof(haddr_t)) /* hsize_t */ H5T_INIT_TYPE(OFFSET, H5T_NATIVE_HSIZE_g, COPY, native_uint, SET, sizeof(hsize_t)) /* hssize_t */ H5T_INIT_TYPE(OFFSET, H5T_NATIVE_HSSIZE_g, COPY, native_int, SET, sizeof(hssize_t)) /* herr_t */ H5T_INIT_TYPE(OFFSET, H5T_NATIVE_HERR_g, COPY, native_int, SET, sizeof(herr_t)) /* bool */ H5T_INIT_TYPE(OFFSET, H5T_NATIVE_HBOOL_g, COPY, native_uint, SET, sizeof(bool)) /*------------------------------------------------------------ * IEEE Types *------------------------------------------------------------ */ /* IEEE 4-byte little-endian float */ H5T_INIT_TYPE(FLOATLE, H5T_IEEE_F32LE_g, COPY, native_double, SET, 4) /* IEEE 4-byte big-endian float */ H5T_INIT_TYPE(FLOATBE, H5T_IEEE_F32BE_g, COPY, native_double, SET, 4) /* IEEE 8-byte little-endian float */ H5T_INIT_TYPE(DOUBLELE, H5T_IEEE_F64LE_g, COPY, native_double, SET, 8) /* IEEE 8-byte big-endian float */ H5T_INIT_TYPE(DOUBLEBE, H5T_IEEE_F64BE_g, COPY, native_double, SET, 8) /*------------------------------------------------------------ * VAX Types *------------------------------------------------------------ */ /* VAX 4-byte float */ H5T_INIT_TYPE(FLOATVAX, H5T_VAX_F32_g, COPY, native_double, SET, 4) /* VAX 8-byte double */ H5T_INIT_TYPE(DOUBLEVAX, H5T_VAX_F64_g, COPY, native_double, SET, 8) /*------------------------------------------------------------ * C99 types *------------------------------------------------------------ */ /* 1-byte little-endian (endianness is irrelevant) signed integer */ H5T_INIT_TYPE(SINTLE, H5T_STD_I8LE_g, COPY, native_int, SET, 1) /* 1-byte big-endian (endianness is irrelevant) signed integer */ H5T_INIT_TYPE(SINTBE, H5T_STD_I8BE_g, COPY, native_int, SET, 1) /* 2-byte little-endian signed integer */ H5T_INIT_TYPE(SINTLE, H5T_STD_I16LE_g, COPY, native_int, SET, 2) /* 2-byte big-endian signed integer */ H5T_INIT_TYPE(SINTBE, H5T_STD_I16BE_g, COPY, native_int, SET, 2) /* 4-byte little-endian signed integer */ H5T_INIT_TYPE(SINTLE, H5T_STD_I32LE_g, COPY, native_int, SET, 4) /* 4-byte big-endian signed integer */ H5T_INIT_TYPE(SINTBE, H5T_STD_I32BE_g, COPY, native_int, SET, 4) /* 8-byte little-endian signed integer */ H5T_INIT_TYPE(SINTLE, H5T_STD_I64LE_g, COPY, native_int, SET, 8) /* 8-byte big-endian signed integer */ H5T_INIT_TYPE(SINTBE, H5T_STD_I64BE_g, COPY, native_int, SET, 8) /* 1-byte little-endian (endianness is irrelevant) unsigned integer */ H5T_INIT_TYPE(UINTLE, H5T_STD_U8LE_g, COPY, native_uint, SET, 1) std_u8le = dt; /* Keep type for later */ /* 1-byte big-endian (endianness is irrelevant) unsigned integer */ H5T_INIT_TYPE(UINTBE, H5T_STD_U8BE_g, COPY, native_uint, SET, 1) std_u8be = dt; /* Keep type for later */ /* 2-byte little-endian unsigned integer */ H5T_INIT_TYPE(UINTLE, H5T_STD_U16LE_g, COPY, native_uint, SET, 2) std_u16le = dt; /* Keep type for later */ /* 2-byte big-endian unsigned integer */ H5T_INIT_TYPE(UINTBE, H5T_STD_U16BE_g, COPY, native_uint, SET, 2) std_u16be = dt; /* Keep type for later */ /* 4-byte little-endian unsigned integer */ H5T_INIT_TYPE(UINTLE, H5T_STD_U32LE_g, COPY, native_uint, SET, 4) std_u32le = dt; /* Keep type for later */ /* 4-byte big-endian unsigned integer */ H5T_INIT_TYPE(UINTBE, H5T_STD_U32BE_g, COPY, native_uint, SET, 4) std_u32be = dt; /* Keep type for later */ /* 8-byte little-endian unsigned integer */ H5T_INIT_TYPE(UINTLE, H5T_STD_U64LE_g, COPY, native_uint, SET, 8) std_u64le = dt; /* Keep type for later */ /* 8-byte big-endian unsigned integer */ H5T_INIT_TYPE(UINTBE, H5T_STD_U64BE_g, COPY, native_uint, SET, 8) std_u64be = dt; /* Keep type for later */ /*------------------------------------------------------------ * Native, Little- & Big-endian bitfields *------------------------------------------------------------ */ /* little-endian (order is irrelevant) 8-bit bitfield */ H5T_INIT_TYPE(BITFIELDLE, H5T_STD_B8LE_g, COPY, std_u8le, NOSET, -) bitfield = dt; /* Keep type for later */ /* big-endian (order is irrelevant) 8-bit bitfield */ H5T_INIT_TYPE(BITFIELDBE, H5T_STD_B8BE_g, COPY, std_u8be, NOSET, -) /* Little-endian 16-bit bitfield */ H5T_INIT_TYPE(BITFIELDLE, H5T_STD_B16LE_g, COPY, std_u16le, NOSET, -) /* Big-endian 16-bit bitfield */ H5T_INIT_TYPE(BITFIELDBE, H5T_STD_B16BE_g, COPY, std_u16be, NOSET, -) /* Little-endian 32-bit bitfield */ H5T_INIT_TYPE(BITFIELDLE, H5T_STD_B32LE_g, COPY, std_u32le, NOSET, -) /* Big-endian 32-bit bitfield */ H5T_INIT_TYPE(BITFIELDBE, H5T_STD_B32BE_g, COPY, std_u32be, NOSET, -) /* Little-endian 64-bit bitfield */ H5T_INIT_TYPE(BITFIELDLE, H5T_STD_B64LE_g, COPY, std_u64le, NOSET, -) /* Big-endian 64-bit bitfield */ H5T_INIT_TYPE(BITFIELDBE, H5T_STD_B64BE_g, COPY, std_u64be, NOSET, -) /*------------------------------------------------------------ * The Unix architecture for dates and times. *------------------------------------------------------------ */ /* Little-endian 32-bit UNIX time_t */ H5T_INIT_TYPE(TIME, H5T_UNIX_D32LE_g, COPY, std_u32le, NOSET, -) /* Big-endian 32-bit UNIX time_t */ H5T_INIT_TYPE(TIME, H5T_UNIX_D32BE_g, COPY, std_u32be, NOSET, -) /* Little-endian 64-bit UNIX time_t */ H5T_INIT_TYPE(TIME, H5T_UNIX_D64LE_g, COPY, std_u64le, NOSET, -) /* Big-endian 64-bit UNIX time_t */ H5T_INIT_TYPE(TIME, H5T_UNIX_D64BE_g, COPY, std_u64be, NOSET, -) /* Indicate that the types that are created from here down are allocated * H5FL_ALLOC(), not copied with H5T_copy() */ copied_dtype = false; /* Opaque data */ H5T_INIT_TYPE(OPAQ, H5T_NATIVE_OPAQUE_g, ALLOC, -, SET, 1) /*------------------------------------------------------------ * The `C' architecture *------------------------------------------------------------ */ /* One-byte character string */ H5T_INIT_TYPE(CSTRING, H5T_C_S1_g, ALLOC, -, SET, 1) string = dt; /* Keep type for later */ /*------------------------------------------------------------ * The `Fortran' architecture *------------------------------------------------------------ */ /* One-byte character string */ H5T_INIT_TYPE(FORSTRING, H5T_FORTRAN_S1_g, ALLOC, -, SET, 1) /*------------------------------------------------------------ * Reference types *------------------------------------------------------------ */ /* Deprecated object reference type */ H5T_INIT_TYPE(OBJREF, H5T_STD_REF_OBJ_g, ALLOC, -, NOSET, -) if (H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location"); objref = dt; /* Keep type for later */ /* Deprecated region reference type */ H5T_INIT_TYPE(REGREF, H5T_STD_REF_DSETREG_g, ALLOC, -, NOSET, -) if (H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location"); regref = dt; /* Keep type for later */ /* Opaque reference type */ H5T_INIT_TYPE(REF, H5T_STD_REF_g, ALLOC, -, NOSET, -) if (H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location"); ref = dt; /* Keep type for later */ /* * Register conversion functions beginning with the most general and * ending with the most specific. */ fixedpt = native_int; floatpt = native_float; if (NULL == (compound = H5T__create(H5T_COMPOUND, (size_t)1))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (NULL == (enum_type = H5T__create(H5T_ENUM, (size_t)1))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (NULL == (vlen = H5T__vlen_create(native_int))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (NULL == (array = H5T__array_create(native_int, 1, dim))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); status = 0; status |= H5T__register_int(H5T_PERS_SOFT, "i_i", fixedpt, fixedpt, H5T__conv_i_i); status |= H5T__register_int(H5T_PERS_SOFT, "i_f", fixedpt, floatpt, H5T__conv_i_f); status |= H5T__register_int(H5T_PERS_SOFT, "f_f", floatpt, floatpt, H5T__conv_f_f); status |= H5T__register_int(H5T_PERS_SOFT, "f_i", floatpt, fixedpt, H5T__conv_f_i); status |= H5T__register_int(H5T_PERS_SOFT, "s_s", string, string, H5T__conv_s_s); status |= H5T__register_int(H5T_PERS_SOFT, "b_b", bitfield, bitfield, H5T__conv_b_b); status |= H5T__register_int(H5T_PERS_SOFT, "ibo", fixedpt, fixedpt, H5T__conv_order); status |= H5T__register_int(H5T_PERS_SOFT, "ibo(opt)", fixedpt, fixedpt, H5T__conv_order_opt); status |= H5T__register_int(H5T_PERS_SOFT, "fbo", floatpt, floatpt, H5T__conv_order); status |= H5T__register_int(H5T_PERS_SOFT, "fbo(opt)", floatpt, floatpt, H5T__conv_order_opt); status |= H5T__register_int(H5T_PERS_SOFT, "struct(no-opt)", compound, compound, H5T__conv_struct); status |= H5T__register_int(H5T_PERS_SOFT, "struct(opt)", compound, compound, H5T__conv_struct_opt); status |= H5T__register_int(H5T_PERS_SOFT, "enum", enum_type, enum_type, H5T__conv_enum); status |= H5T__register_int(H5T_PERS_SOFT, "enum_i", enum_type, fixedpt, H5T__conv_enum_numeric); status |= H5T__register_int(H5T_PERS_SOFT, "enum_f", enum_type, floatpt, H5T__conv_enum_numeric); status |= H5T__register_int(H5T_PERS_SOFT, "vlen", vlen, vlen, H5T__conv_vlen); status |= H5T__register_int(H5T_PERS_SOFT, "array", array, array, H5T__conv_array); status |= H5T__register_int(H5T_PERS_SOFT, "objref", objref, objref, H5T__conv_noop); status |= H5T__register_int(H5T_PERS_SOFT, "regref", regref, regref, H5T__conv_noop); status |= H5T__register_int(H5T_PERS_SOFT, "ref", ref, ref, H5T__conv_ref); status |= H5T__register_int(H5T_PERS_SOFT, "objref_ref", objref, ref, H5T__conv_ref); status |= H5T__register_int(H5T_PERS_SOFT, "regref_ref", regref, ref, H5T__conv_ref); /* * Native conversions should be listed last since we can use hardware to * perform the conversion. We list the odd types like `llong', `long', * and `short' before the usual types like `int' and `char' so that when * diagnostics are printed we favor the usual names over the odd names * when two or more types are the same size. */ /* floating point */ status |= H5T__register_int(H5T_PERS_HARD, "flt_dbl", native_float, native_double, H5T__conv_float_double); status |= H5T__register_int(H5T_PERS_HARD, "dbl_flt", native_double, native_float, H5T__conv_double_float); status |= H5T__register_int(H5T_PERS_HARD, "flt_ldbl", native_float, native_ldouble, H5T__conv_float_ldouble); status |= H5T__register_int(H5T_PERS_HARD, "dbl_ldbl", native_double, native_ldouble, H5T__conv_double_ldouble); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_flt", native_ldouble, native_float, H5T__conv_ldouble_float); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_dbl", native_ldouble, native_double, H5T__conv_ldouble_double); /* from long long */ status |= H5T__register_int(H5T_PERS_HARD, "llong_ullong", native_llong, native_ullong, H5T__conv_llong_ullong); status |= H5T__register_int(H5T_PERS_HARD, "ullong_llong", native_ullong, native_llong, H5T__conv_ullong_llong); status |= H5T__register_int(H5T_PERS_HARD, "llong_long", native_llong, native_long, H5T__conv_llong_long); status |= H5T__register_int(H5T_PERS_HARD, "llong_ulong", native_llong, native_ulong, H5T__conv_llong_ulong); status |= H5T__register_int(H5T_PERS_HARD, "ullong_long", native_ullong, native_long, H5T__conv_ullong_long); status |= H5T__register_int(H5T_PERS_HARD, "ullong_ulong", native_ullong, native_ulong, H5T__conv_ullong_ulong); status |= H5T__register_int(H5T_PERS_HARD, "llong_short", native_llong, native_short, H5T__conv_llong_short); status |= H5T__register_int(H5T_PERS_HARD, "llong_ushort", native_llong, native_ushort, H5T__conv_llong_ushort); status |= H5T__register_int(H5T_PERS_HARD, "ullong_short", native_ullong, native_short, H5T__conv_ullong_short); status |= H5T__register_int(H5T_PERS_HARD, "ullong_ushort", native_ullong, native_ushort, H5T__conv_ullong_ushort); status |= H5T__register_int(H5T_PERS_HARD, "llong_int", native_llong, native_int, H5T__conv_llong_int); status |= H5T__register_int(H5T_PERS_HARD, "llong_uint", native_llong, native_uint, H5T__conv_llong_uint); status |= H5T__register_int(H5T_PERS_HARD, "ullong_int", native_ullong, native_int, H5T__conv_ullong_int); status |= H5T__register_int(H5T_PERS_HARD, "ullong_uint", native_ullong, native_uint, H5T__conv_ullong_uint); status |= H5T__register_int(H5T_PERS_HARD, "llong_schar", native_llong, native_schar, H5T__conv_llong_schar); status |= H5T__register_int(H5T_PERS_HARD, "llong_uchar", native_llong, native_uchar, H5T__conv_llong_uchar); status |= H5T__register_int(H5T_PERS_HARD, "ullong_schar", native_ullong, native_schar, H5T__conv_ullong_schar); status |= H5T__register_int(H5T_PERS_HARD, "ullong_uchar", native_ullong, native_uchar, H5T__conv_ullong_uchar); /* From long */ status |= H5T__register_int(H5T_PERS_HARD, "long_llong", native_long, native_llong, H5T__conv_long_llong); status |= H5T__register_int(H5T_PERS_HARD, "long_ullong", native_long, native_ullong, H5T__conv_long_ullong); status |= H5T__register_int(H5T_PERS_HARD, "ulong_llong", native_ulong, native_llong, H5T__conv_ulong_llong); status |= H5T__register_int(H5T_PERS_HARD, "ulong_ullong", native_ulong, native_ullong, H5T__conv_ulong_ullong); status |= H5T__register_int(H5T_PERS_HARD, "long_ulong", native_long, native_ulong, H5T__conv_long_ulong); status |= H5T__register_int(H5T_PERS_HARD, "ulong_long", native_ulong, native_long, H5T__conv_ulong_long); status |= H5T__register_int(H5T_PERS_HARD, "long_short", native_long, native_short, H5T__conv_long_short); status |= H5T__register_int(H5T_PERS_HARD, "long_ushort", native_long, native_ushort, H5T__conv_long_ushort); status |= H5T__register_int(H5T_PERS_HARD, "ulong_short", native_ulong, native_short, H5T__conv_ulong_short); status |= H5T__register_int(H5T_PERS_HARD, "ulong_ushort", native_ulong, native_ushort, H5T__conv_ulong_ushort); status |= H5T__register_int(H5T_PERS_HARD, "long_int", native_long, native_int, H5T__conv_long_int); status |= H5T__register_int(H5T_PERS_HARD, "long_uint", native_long, native_uint, H5T__conv_long_uint); status |= H5T__register_int(H5T_PERS_HARD, "ulong_int", native_ulong, native_int, H5T__conv_ulong_int); status |= H5T__register_int(H5T_PERS_HARD, "ulong_uint", native_ulong, native_uint, H5T__conv_ulong_uint); status |= H5T__register_int(H5T_PERS_HARD, "long_schar", native_long, native_schar, H5T__conv_long_schar); status |= H5T__register_int(H5T_PERS_HARD, "long_uchar", native_long, native_uchar, H5T__conv_long_uchar); status |= H5T__register_int(H5T_PERS_HARD, "ulong_schar", native_ulong, native_schar, H5T__conv_ulong_schar); status |= H5T__register_int(H5T_PERS_HARD, "ulong_uchar", native_ulong, native_uchar, H5T__conv_ulong_uchar); /* From short */ status |= H5T__register_int(H5T_PERS_HARD, "short_llong", native_short, native_llong, H5T__conv_short_llong); status |= H5T__register_int(H5T_PERS_HARD, "short_ullong", native_short, native_ullong, H5T__conv_short_ullong); status |= H5T__register_int(H5T_PERS_HARD, "ushort_llong", native_ushort, native_llong, H5T__conv_ushort_llong); status |= H5T__register_int(H5T_PERS_HARD, "ushort_ullong", native_ushort, native_ullong, H5T__conv_ushort_ullong); status |= H5T__register_int(H5T_PERS_HARD, "short_long", native_short, native_long, H5T__conv_short_long); status |= H5T__register_int(H5T_PERS_HARD, "short_ulong", native_short, native_ulong, H5T__conv_short_ulong); status |= H5T__register_int(H5T_PERS_HARD, "ushort_long", native_ushort, native_long, H5T__conv_ushort_long); status |= H5T__register_int(H5T_PERS_HARD, "ushort_ulong", native_ushort, native_ulong, H5T__conv_ushort_ulong); status |= H5T__register_int(H5T_PERS_HARD, "short_ushort", native_short, native_ushort, H5T__conv_short_ushort); status |= H5T__register_int(H5T_PERS_HARD, "ushort_short", native_ushort, native_short, H5T__conv_ushort_short); status |= H5T__register_int(H5T_PERS_HARD, "short_int", native_short, native_int, H5T__conv_short_int); status |= H5T__register_int(H5T_PERS_HARD, "short_uint", native_short, native_uint, H5T__conv_short_uint); status |= H5T__register_int(H5T_PERS_HARD, "ushort_int", native_ushort, native_int, H5T__conv_ushort_int); status |= H5T__register_int(H5T_PERS_HARD, "ushort_uint", native_ushort, native_uint, H5T__conv_ushort_uint); status |= H5T__register_int(H5T_PERS_HARD, "short_schar", native_short, native_schar, H5T__conv_short_schar); status |= H5T__register_int(H5T_PERS_HARD, "short_uchar", native_short, native_uchar, H5T__conv_short_uchar); status |= H5T__register_int(H5T_PERS_HARD, "ushort_schar", native_ushort, native_schar, H5T__conv_ushort_schar); status |= H5T__register_int(H5T_PERS_HARD, "ushort_uchar", native_ushort, native_uchar, H5T__conv_ushort_uchar); /* From int */ status |= H5T__register_int(H5T_PERS_HARD, "int_llong", native_int, native_llong, H5T__conv_int_llong); status |= H5T__register_int(H5T_PERS_HARD, "int_ullong", native_int, native_ullong, H5T__conv_int_ullong); status |= H5T__register_int(H5T_PERS_HARD, "uint_llong", native_uint, native_llong, H5T__conv_uint_llong); status |= H5T__register_int(H5T_PERS_HARD, "uint_ullong", native_uint, native_ullong, H5T__conv_uint_ullong); status |= H5T__register_int(H5T_PERS_HARD, "int_long", native_int, native_long, H5T__conv_int_long); status |= H5T__register_int(H5T_PERS_HARD, "int_ulong", native_int, native_ulong, H5T__conv_int_ulong); status |= H5T__register_int(H5T_PERS_HARD, "uint_long", native_uint, native_long, H5T__conv_uint_long); status |= H5T__register_int(H5T_PERS_HARD, "uint_ulong", native_uint, native_ulong, H5T__conv_uint_ulong); status |= H5T__register_int(H5T_PERS_HARD, "int_short", native_int, native_short, H5T__conv_int_short); status |= H5T__register_int(H5T_PERS_HARD, "int_ushort", native_int, native_ushort, H5T__conv_int_ushort); status |= H5T__register_int(H5T_PERS_HARD, "uint_short", native_uint, native_short, H5T__conv_uint_short); status |= H5T__register_int(H5T_PERS_HARD, "uint_ushort", native_uint, native_ushort, H5T__conv_uint_ushort); status |= H5T__register_int(H5T_PERS_HARD, "int_uint", native_int, native_uint, H5T__conv_int_uint); status |= H5T__register_int(H5T_PERS_HARD, "uint_int", native_uint, native_int, H5T__conv_uint_int); status |= H5T__register_int(H5T_PERS_HARD, "int_schar", native_int, native_schar, H5T__conv_int_schar); status |= H5T__register_int(H5T_PERS_HARD, "int_uchar", native_int, native_uchar, H5T__conv_int_uchar); status |= H5T__register_int(H5T_PERS_HARD, "uint_schar", native_uint, native_schar, H5T__conv_uint_schar); status |= H5T__register_int(H5T_PERS_HARD, "uint_uchar", native_uint, native_uchar, H5T__conv_uint_uchar); /* From char */ status |= H5T__register_int(H5T_PERS_HARD, "schar_llong", native_schar, native_llong, H5T__conv_schar_llong); status |= H5T__register_int(H5T_PERS_HARD, "schar_ullong", native_schar, native_ullong, H5T__conv_schar_ullong); status |= H5T__register_int(H5T_PERS_HARD, "uchar_llong", native_uchar, native_llong, H5T__conv_uchar_llong); status |= H5T__register_int(H5T_PERS_HARD, "uchar_ullong", native_uchar, native_ullong, H5T__conv_uchar_ullong); status |= H5T__register_int(H5T_PERS_HARD, "schar_long", native_schar, native_long, H5T__conv_schar_long); status |= H5T__register_int(H5T_PERS_HARD, "schar_ulong", native_schar, native_ulong, H5T__conv_schar_ulong); status |= H5T__register_int(H5T_PERS_HARD, "uchar_long", native_uchar, native_long, H5T__conv_uchar_long); status |= H5T__register_int(H5T_PERS_HARD, "uchar_ulong", native_uchar, native_ulong, H5T__conv_uchar_ulong); status |= H5T__register_int(H5T_PERS_HARD, "schar_short", native_schar, native_short, H5T__conv_schar_short); status |= H5T__register_int(H5T_PERS_HARD, "schar_ushort", native_schar, native_ushort, H5T__conv_schar_ushort); status |= H5T__register_int(H5T_PERS_HARD, "uchar_short", native_uchar, native_short, H5T__conv_uchar_short); status |= H5T__register_int(H5T_PERS_HARD, "uchar_ushort", native_uchar, native_ushort, H5T__conv_uchar_ushort); status |= H5T__register_int(H5T_PERS_HARD, "schar_int", native_schar, native_int, H5T__conv_schar_int); status |= H5T__register_int(H5T_PERS_HARD, "schar_uint", native_schar, native_uint, H5T__conv_schar_uint); status |= H5T__register_int(H5T_PERS_HARD, "uchar_int", native_uchar, native_int, H5T__conv_uchar_int); status |= H5T__register_int(H5T_PERS_HARD, "uchar_uint", native_uchar, native_uint, H5T__conv_uchar_uint); status |= H5T__register_int(H5T_PERS_HARD, "schar_uchar", native_schar, native_uchar, H5T__conv_schar_uchar); status |= H5T__register_int(H5T_PERS_HARD, "uchar_schar", native_uchar, native_schar, H5T__conv_uchar_schar); /* From char to floats */ status |= H5T__register_int(H5T_PERS_HARD, "schar_flt", native_schar, native_float, H5T__conv_schar_float); status |= H5T__register_int(H5T_PERS_HARD, "schar_dbl", native_schar, native_double, H5T__conv_schar_double); status |= H5T__register_int(H5T_PERS_HARD, "schar_ldbl", native_schar, native_ldouble, H5T__conv_schar_ldouble); /* From unsigned char to floats */ status |= H5T__register_int(H5T_PERS_HARD, "uchar_flt", native_uchar, native_float, H5T__conv_uchar_float); status |= H5T__register_int(H5T_PERS_HARD, "uchar_dbl", native_uchar, native_double, H5T__conv_uchar_double); status |= H5T__register_int(H5T_PERS_HARD, "uchar_ldbl", native_uchar, native_ldouble, H5T__conv_uchar_ldouble); /* From short to floats */ status |= H5T__register_int(H5T_PERS_HARD, "short_flt", native_short, native_float, H5T__conv_short_float); status |= H5T__register_int(H5T_PERS_HARD, "short_dbl", native_short, native_double, H5T__conv_short_double); status |= H5T__register_int(H5T_PERS_HARD, "short_ldbl", native_short, native_ldouble, H5T__conv_short_ldouble); /* From unsigned short to floats */ status |= H5T__register_int(H5T_PERS_HARD, "ushort_flt", native_ushort, native_float, H5T__conv_ushort_float); status |= H5T__register_int(H5T_PERS_HARD, "ushort_dbl", native_ushort, native_double, H5T__conv_ushort_double); status |= H5T__register_int(H5T_PERS_HARD, "ushort_ldbl", native_ushort, native_ldouble, H5T__conv_ushort_ldouble); /* From int to floats */ status |= H5T__register_int(H5T_PERS_HARD, "int_flt", native_int, native_float, H5T__conv_int_float); status |= H5T__register_int(H5T_PERS_HARD, "int_dbl", native_int, native_double, H5T__conv_int_double); status |= H5T__register_int(H5T_PERS_HARD, "int_ldbl", native_int, native_ldouble, H5T__conv_int_ldouble); /* From unsigned int to floats */ status |= H5T__register_int(H5T_PERS_HARD, "uint_flt", native_uint, native_float, H5T__conv_uint_float); status |= H5T__register_int(H5T_PERS_HARD, "uint_dbl", native_uint, native_double, H5T__conv_uint_double); status |= H5T__register_int(H5T_PERS_HARD, "uint_ldbl", native_uint, native_ldouble, H5T__conv_uint_ldouble); /* From long to floats */ status |= H5T__register_int(H5T_PERS_HARD, "long_flt", native_long, native_float, H5T__conv_long_float); status |= H5T__register_int(H5T_PERS_HARD, "long_dbl", native_long, native_double, H5T__conv_long_double); status |= H5T__register_int(H5T_PERS_HARD, "long_ldbl", native_long, native_ldouble, H5T__conv_long_ldouble); /* From unsigned long to floats */ status |= H5T__register_int(H5T_PERS_HARD, "ulong_flt", native_ulong, native_float, H5T__conv_ulong_float); status |= H5T__register_int(H5T_PERS_HARD, "ulong_dbl", native_ulong, native_double, H5T__conv_ulong_double); status |= H5T__register_int(H5T_PERS_HARD, "ulong_ldbl", native_ulong, native_ldouble, H5T__conv_ulong_ldouble); /* From long long to floats */ status |= H5T__register_int(H5T_PERS_HARD, "llong_flt", native_llong, native_float, H5T__conv_llong_float); status |= H5T__register_int(H5T_PERS_HARD, "llong_dbl", native_llong, native_double, H5T__conv_llong_double); #ifdef H5T_CONV_INTERNAL_LLONG_LDOUBLE status |= H5T__register_int(H5T_PERS_HARD, "llong_ldbl", native_llong, native_ldouble, H5T__conv_llong_ldouble); #endif /* H5T_CONV_INTERNAL_LLONG_LDOUBLE */ /* From unsigned long long to floats */ status |= H5T__register_int(H5T_PERS_HARD, "ullong_flt", native_ullong, native_float, H5T__conv_ullong_float); status |= H5T__register_int(H5T_PERS_HARD, "ullong_dbl", native_ullong, native_double, H5T__conv_ullong_double); #ifdef H5T_CONV_INTERNAL_ULLONG_LDOUBLE status |= H5T__register_int(H5T_PERS_HARD, "ullong_ldbl", native_ullong, native_ldouble, H5T__conv_ullong_ldouble); #endif /* H5T_CONV_INTERNAL_ULLONG_LDOUBLE */ /* From floats to char */ status |= H5T__register_int(H5T_PERS_HARD, "flt_schar", native_float, native_schar, H5T__conv_float_schar); status |= H5T__register_int(H5T_PERS_HARD, "dbl_schar", native_double, native_schar, H5T__conv_double_schar); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_schar", native_ldouble, native_schar, H5T__conv_ldouble_schar); /* From floats to unsigned char */ status |= H5T__register_int(H5T_PERS_HARD, "flt_uchar", native_float, native_uchar, H5T__conv_float_uchar); status |= H5T__register_int(H5T_PERS_HARD, "dbl_uchar", native_double, native_uchar, H5T__conv_double_uchar); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_uchar", native_ldouble, native_uchar, H5T__conv_ldouble_uchar); /* From floats to short */ status |= H5T__register_int(H5T_PERS_HARD, "flt_short", native_float, native_short, H5T__conv_float_short); status |= H5T__register_int(H5T_PERS_HARD, "dbl_short", native_double, native_short, H5T__conv_double_short); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_short", native_ldouble, native_short, H5T__conv_ldouble_short); /* From floats to unsigned short */ status |= H5T__register_int(H5T_PERS_HARD, "flt_ushort", native_float, native_ushort, H5T__conv_float_ushort); status |= H5T__register_int(H5T_PERS_HARD, "dbl_ushort", native_double, native_ushort, H5T__conv_double_ushort); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_ushort", native_ldouble, native_ushort, H5T__conv_ldouble_ushort); /* From floats to int */ status |= H5T__register_int(H5T_PERS_HARD, "flt_int", native_float, native_int, H5T__conv_float_int); status |= H5T__register_int(H5T_PERS_HARD, "dbl_int", native_double, native_int, H5T__conv_double_int); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_int", native_ldouble, native_int, H5T__conv_ldouble_int); /* From floats to unsigned int */ status |= H5T__register_int(H5T_PERS_HARD, "flt_uint", native_float, native_uint, H5T__conv_float_uint); status |= H5T__register_int(H5T_PERS_HARD, "dbl_uint", native_double, native_uint, H5T__conv_double_uint); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_uint", native_ldouble, native_uint, H5T__conv_ldouble_uint); /* From floats to long */ status |= H5T__register_int(H5T_PERS_HARD, "flt_long", native_float, native_long, H5T__conv_float_long); status |= H5T__register_int(H5T_PERS_HARD, "dbl_long", native_double, native_long, H5T__conv_double_long); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_long", native_ldouble, native_long, H5T__conv_ldouble_long); /* From floats to unsigned long */ status |= H5T__register_int(H5T_PERS_HARD, "flt_ulong", native_float, native_ulong, H5T__conv_float_ulong); status |= H5T__register_int(H5T_PERS_HARD, "dbl_ulong", native_double, native_ulong, H5T__conv_double_ulong); status |= H5T__register_int(H5T_PERS_HARD, "ldbl_ulong", native_ldouble, native_ulong, H5T__conv_ldouble_ulong); /* From floats to long long */ status |= H5T__register_int(H5T_PERS_HARD, "flt_llong", native_float, native_llong, H5T__conv_float_llong); status |= H5T__register_int(H5T_PERS_HARD, "dbl_llong", native_double, native_llong, H5T__conv_double_llong); #ifdef H5T_CONV_INTERNAL_LDOUBLE_LLONG status |= H5T__register_int(H5T_PERS_HARD, "ldbl_llong", native_ldouble, native_llong, H5T__conv_ldouble_llong); #endif /* H5T_CONV_INTERNAL_LDOUBLE_LLONG */ /* From floats to unsigned long long */ status |= H5T__register_int(H5T_PERS_HARD, "flt_ullong", native_float, native_ullong, H5T__conv_float_ullong); status |= H5T__register_int(H5T_PERS_HARD, "dbl_ullong", native_double, native_ullong, H5T__conv_double_ullong); #if H5T_CONV_INTERNAL_LDOUBLE_ULLONG status |= H5T__register_int(H5T_PERS_HARD, "ldbl_ullong", native_ldouble, native_ullong, H5T__conv_ldouble_ullong); #endif /* H5T_CONV_INTERNAL_LDOUBLE_ULLONG */ /* * The special no-op conversion is the fastest, so we list it last. The * data types we use are not important as long as the source and * destination are equal. */ status |= H5T__register_int(H5T_PERS_HARD, "no-op", native_int, native_int, H5T__conv_noop); /* Initialize the +/- Infinity values for floating-point types */ status |= H5T__init_inf(); if (status < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to register conversion function(s)"); /* Register datatype creation property class properties here. See similar * code in H5D_init(), etc. for example. */ /* Only register the default property list if it hasn't been created yet */ if (H5P_LST_DATATYPE_CREATE_ID_g == (-1)) { /* ========== Datatype Creation Property Class Initialization ============*/ assert(H5P_CLS_DATATYPE_CREATE_g != NULL); /* Register the default datatype creation property list */ if ((H5P_LST_DATATYPE_CREATE_ID_g = H5P_create_id(H5P_CLS_DATATYPE_CREATE_g, false)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTREGISTER, FAIL, "can't insert property into class"); } /* end if */ done: /* General cleanup */ if (compound != NULL) (void)H5T_close_real(compound); if (enum_type != NULL) (void)H5T_close_real(enum_type); if (vlen != NULL) (void)H5T_close_real(vlen); if (array != NULL) (void)H5T_close_real(array); /* Error cleanup */ if (ret_value < 0) { if (dt) { /* Check if we should call H5T_close_real or H5FL_FREE */ if (copied_dtype) (void)H5T_close_real(dt); else { if (dt->shared->owned_vol_obj && H5VL_free_object(dt->shared->owned_vol_obj) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "unable to close owned VOL object"); dt->shared = H5FL_FREE(H5T_shared_t, dt->shared); dt = H5FL_FREE(H5T_t, dt); } /* end else */ } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_init() */ /*------------------------------------------------------------------------- * Function: H5T__unlock_cb * * Purpose: Clear the immutable flag for a datatype. This function is * called when the library is closing in order to unlock all * registered datatypes and thus make them free-able. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ static int H5T__unlock_cb(void *_dt, hid_t H5_ATTR_UNUSED id, void *_udata) { H5T_t *dt = (H5T_t *)_dt; int *n = (int *)_udata; FUNC_ENTER_PACKAGE_NOERR assert(dt); assert(dt->shared); if (H5T_STATE_IMMUTABLE == dt->shared->state) { dt->shared->state = H5T_STATE_RDONLY; (*n)++; } /* end if */ FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5T__unlock_cb() */ /*------------------------------------------------------------------------- * Function: H5T_top_term_package * * Purpose: Close the "top" of the interface, releasing IDs, etc. * * Return: Success: Positive if any action might have caused a * change in some other interface; zero otherwise. * Failure: Negative * *------------------------------------------------------------------------- */ int H5T_top_term_package(void) { int n = 0; FUNC_ENTER_NOAPI_NOINIT_NOERR /* Unregister all conversion functions */ if (H5T_g.path) { int i, nprint = 0; for (i = 0; i < H5T_g.npaths; i++) { H5T_path_t *path; path = H5T_g.path[i]; assert(path); if (path->conv.u.app_func) { H5T__print_stats(path, &nprint /*in,out*/); path->cdata.command = H5T_CONV_FREE; if (path->conv.is_app) { if ((path->conv.u.app_func)((hid_t)FAIL, (hid_t)FAIL, &(path->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) { fprintf(H5DEBUG(T), "H5T: conversion function " "0x%016zx failed to free private data for " "%s (ignored)\n", (size_t)path->conv.u.app_func, path->name); } /* end if */ #endif H5E_clear_stack(NULL); /*ignore the error*/ } /* end if */ } /* end if */ else { if ((path->conv.u.lib_func)(NULL, NULL, &(path->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) { fprintf(H5DEBUG(T), "H5T: conversion function " "0x%016zx failed to free private data for " "%s (ignored)\n", (size_t)path->conv.u.lib_func, path->name); } /* end if */ #endif H5E_clear_stack(NULL); /*ignore the error*/ } /* end if */ } /* end else */ } /* end if */ if (path->src) (void)H5T_close_real(path->src); if (path->dst) (void)H5T_close_real(path->dst); path = H5FL_FREE(H5T_path_t, path); H5T_g.path[i] = NULL; } /* end for */ /* Clear conversion tables */ H5T_g.path = (H5T_path_t **)H5MM_xfree(H5T_g.path); H5T_g.npaths = 0; H5T_g.apaths = 0; H5T_g.soft = (H5T_soft_t *)H5MM_xfree(H5T_g.soft); H5T_g.nsoft = 0; H5T_g.asoft = 0; n++; } /* end if */ /* Unlock all datatypes, then free them */ /* note that we are ignoring the return value from H5I_iterate() */ /* Also note that we are incrementing 'n' in the callback */ H5I_iterate(H5I_DATATYPE, H5T__unlock_cb, &n, false); /* Release all datatype IDs */ if (H5I_nmembers(H5I_DATATYPE) > 0) { (void)H5I_clear_type(H5I_DATATYPE, false, false); n++; /*H5I*/ } /* end if */ /* Reset all the datatype IDs */ if (H5T_IEEE_F32BE_g > 0) { H5T_IEEE_F32BE_g = FAIL; H5T_IEEE_F32LE_g = FAIL; H5T_IEEE_F64BE_g = FAIL; H5T_IEEE_F64LE_g = FAIL; H5T_STD_I8BE_g = FAIL; H5T_STD_I8LE_g = FAIL; H5T_STD_I16BE_g = FAIL; H5T_STD_I16LE_g = FAIL; H5T_STD_I32BE_g = FAIL; H5T_STD_I32LE_g = FAIL; H5T_STD_I64BE_g = FAIL; H5T_STD_I64LE_g = FAIL; H5T_STD_U8BE_g = FAIL; H5T_STD_U8LE_g = FAIL; H5T_STD_U16BE_g = FAIL; H5T_STD_U16LE_g = FAIL; H5T_STD_U32BE_g = FAIL; H5T_STD_U32LE_g = FAIL; H5T_STD_U64BE_g = FAIL; H5T_STD_U64LE_g = FAIL; H5T_STD_B8BE_g = FAIL; H5T_STD_B8LE_g = FAIL; H5T_STD_B16BE_g = FAIL; H5T_STD_B16LE_g = FAIL; H5T_STD_B32BE_g = FAIL; H5T_STD_B32LE_g = FAIL; H5T_STD_B64BE_g = FAIL; H5T_STD_B64LE_g = FAIL; H5T_STD_REF_OBJ_g = FAIL; H5T_STD_REF_DSETREG_g = FAIL; H5T_STD_REF_g = FAIL; H5T_UNIX_D32BE_g = FAIL; H5T_UNIX_D32LE_g = FAIL; H5T_UNIX_D64BE_g = FAIL; H5T_UNIX_D64LE_g = FAIL; H5T_C_S1_g = FAIL; H5T_FORTRAN_S1_g = FAIL; H5T_NATIVE_SCHAR_g = FAIL; H5T_NATIVE_UCHAR_g = FAIL; H5T_NATIVE_SHORT_g = FAIL; H5T_NATIVE_USHORT_g = FAIL; H5T_NATIVE_INT_g = FAIL; H5T_NATIVE_UINT_g = FAIL; H5T_NATIVE_LONG_g = FAIL; H5T_NATIVE_ULONG_g = FAIL; H5T_NATIVE_LLONG_g = FAIL; H5T_NATIVE_ULLONG_g = FAIL; H5T_NATIVE_FLOAT_g = FAIL; H5T_NATIVE_DOUBLE_g = FAIL; H5T_NATIVE_LDOUBLE_g = FAIL; H5T_NATIVE_B8_g = FAIL; H5T_NATIVE_B16_g = FAIL; H5T_NATIVE_B32_g = FAIL; H5T_NATIVE_B64_g = FAIL; H5T_NATIVE_OPAQUE_g = FAIL; H5T_NATIVE_HADDR_g = FAIL; H5T_NATIVE_HSIZE_g = FAIL; H5T_NATIVE_HSSIZE_g = FAIL; H5T_NATIVE_HERR_g = FAIL; H5T_NATIVE_HBOOL_g = FAIL; H5T_NATIVE_INT8_g = FAIL; H5T_NATIVE_UINT8_g = FAIL; H5T_NATIVE_INT_LEAST8_g = FAIL; H5T_NATIVE_UINT_LEAST8_g = FAIL; H5T_NATIVE_INT_FAST8_g = FAIL; H5T_NATIVE_UINT_FAST8_g = FAIL; H5T_NATIVE_INT16_g = FAIL; H5T_NATIVE_UINT16_g = FAIL; H5T_NATIVE_INT_LEAST16_g = FAIL; H5T_NATIVE_UINT_LEAST16_g = FAIL; H5T_NATIVE_INT_FAST16_g = FAIL; H5T_NATIVE_UINT_FAST16_g = FAIL; H5T_NATIVE_INT32_g = FAIL; H5T_NATIVE_UINT32_g = FAIL; H5T_NATIVE_INT_LEAST32_g = FAIL; H5T_NATIVE_UINT_LEAST32_g = FAIL; H5T_NATIVE_INT_FAST32_g = FAIL; H5T_NATIVE_UINT_FAST32_g = FAIL; H5T_NATIVE_INT64_g = FAIL; H5T_NATIVE_UINT64_g = FAIL; H5T_NATIVE_INT_LEAST64_g = FAIL; H5T_NATIVE_UINT_LEAST64_g = FAIL; H5T_NATIVE_INT_FAST64_g = FAIL; H5T_NATIVE_UINT_FAST64_g = FAIL; n++; } /* end if */ FUNC_LEAVE_NOAPI(n) } /* end H5T_top_term_package() */ /*------------------------------------------------------------------------- * Function: H5T_term_package * * Purpose: Close this interface. * * Note: Finishes shutting down the interface, after * H5T_top_term_package() is called * * Return: Success: Positive if any action might have caused a * change in some other interface; zero * otherwise. * Failure: Negative * *------------------------------------------------------------------------- */ int H5T_term_package(void) { int n = 0; FUNC_ENTER_NOAPI_NOINIT_NOERR /* Sanity check */ assert(0 == H5I_nmembers(H5I_DATATYPE)); /* Destroy the datatype object id group */ n += (H5I_dec_type_ref(H5I_DATATYPE) > 0); FUNC_LEAVE_NOAPI(n) } /* end H5T_term_package() */ /*------------------------------------------------------------------------- * Function: H5T__close_cb * * Purpose: Called when the ref count reaches zero on the datatype's ID * * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ static herr_t H5T__close_cb(H5T_t *dt, void **request) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity check */ assert(dt); assert(dt->shared); /* If this datatype is VOL-managed (i.e.: has a VOL object), * close it through the VOL connector. */ if (NULL != dt->vol_obj) { /* Close the connector-managed datatype data */ if (H5VL_datatype_close(dt->vol_obj, H5P_DATASET_XFER_DEFAULT, request) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to close datatype"); /* Free the VOL object */ if (H5VL_free_object(dt->vol_obj) < 0) HGOTO_ERROR(H5E_ATTR, H5E_CANTDEC, FAIL, "unable to free VOL object"); dt->vol_obj = NULL; } /* end if */ /* Close the datatype */ if (H5T_close(dt) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to close datatype"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__close_cb() */ /*------------------------------------------------------------------------- * Function: H5Tcreate * * Purpose: Create a new type and initialize it to reasonable values. * The type is a member of type class TYPE and is SIZE bytes. * * Return: Success: A new type identifier. * * Failure: Negative * * Errors: * ARGS BADVALUE Invalid size. * DATATYPE CANTINIT Can't create type. * DATATYPE CANTREGISTER Can't register datatype ID. * *------------------------------------------------------------------------- */ hid_t H5Tcreate(H5T_class_t type, size_t size) { H5T_t *dt = NULL; /* New datatype constructed */ hid_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("i", "Ttz", type, size); /* check args. We support string (fixed-size or variable-length) now. */ if (size <= 0 && size != H5T_VARIABLE) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "size must be positive"); /* create the type */ if (NULL == (dt = H5T__create(type, size))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to create type"); /* Get an ID for the datatype */ if ((ret_value = H5I_register(H5I_DATATYPE, dt, true)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register datatype ID"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tcreate() */ /*------------------------------------------------------------------------- * Function: H5Tcopy * * Purpose: Copies a datatype. The resulting datatype is not locked. * The datatype should be closed when no longer needed by * calling H5Tclose(). * * Return: Success: The ID of a new datatype * * Failure: H5I_INVALID_HID * * Note: The returned type is always transient and unlocked. If the * TYPE_ID argument is a dataset instead of a datatype then * this function returns a transient, modifiable datatype * which is a copy of the dataset's datatype. * *------------------------------------------------------------------------- */ hid_t H5Tcopy(hid_t obj_id) { H5T_t *dt = NULL; /* Pointer to the datatype to copy */ H5T_t *new_dt = NULL; /* Pointer to the new datatype */ hid_t dset_tid = H5I_INVALID_HID; /* Datatype ID from dataset */ hid_t ret_value = H5I_INVALID_HID; /* Return value */ FUNC_ENTER_API(H5I_INVALID_HID) H5TRACE1("i", "i", obj_id); switch (H5I_get_type(obj_id)) { case H5I_DATATYPE: /* The argument is a datatype handle */ if (NULL == (dt = (H5T_t *)H5I_object(obj_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "obj_id is not a datatype ID"); break; case H5I_DATASET: { H5VL_object_t *vol_obj; /* Object for obj_id */ H5VL_dataset_get_args_t vol_cb_args; /* Arguments to VOL callback */ /* The argument is a dataset handle */ if (NULL == (vol_obj = (H5VL_object_t *)H5I_object_verify(obj_id, H5I_DATASET))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "type_id is not a dataset ID"); /* Set up VOL callback arguments */ vol_cb_args.op_type = H5VL_DATASET_GET_TYPE; vol_cb_args.args.get_type.type_id = H5I_INVALID_HID; /* Get the datatype from the dataset * NOTE: This will have to be closed after we're done with it. */ if (H5VL_dataset_get(vol_obj, &vol_cb_args, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5I_INVALID_HID, "unable to get datatype from the dataset"); dset_tid = vol_cb_args.args.get_type.type_id; /* Unwrap the type ID */ if (NULL == (dt = (H5T_t *)H5I_object(dset_tid))) HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, H5I_INVALID_HID, "received invalid datatype from the dataset"); } break; case H5I_UNINIT: case H5I_BADID: case H5I_FILE: case H5I_GROUP: case H5I_DATASPACE: case H5I_ATTR: case H5I_MAP: case H5I_VFL: case H5I_VOL: case H5I_GENPROP_CLS: case H5I_GENPROP_LST: case H5I_ERROR_CLASS: case H5I_ERROR_MSG: case H5I_ERROR_STACK: case H5I_SPACE_SEL_ITER: case H5I_EVENTSET: case H5I_NTYPES: default: HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "not a datatype or dataset"); } /* end switch */ /* Copy datatype */ if (NULL == (new_dt = H5T_copy(dt, H5T_COPY_TRANSIENT))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, H5I_INVALID_HID, "unable to copy"); /* Get an ID for the copied datatype */ if ((ret_value = H5I_register(H5I_DATATYPE, new_dt, true)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register datatype atom"); done: /* If we got a type ID from a passed-in dataset, we need to close that */ if (dset_tid != H5I_INVALID_HID) if (H5I_dec_app_ref(dset_tid) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_BADID, FAIL, "problem freeing temporary dataset type ID"); /* Close the new datatype on errors */ if (H5I_INVALID_HID == ret_value) if (new_dt && H5T_close_real(new_dt) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, H5I_INVALID_HID, "unable to release datatype info"); FUNC_LEAVE_API(ret_value) } /* end H5Tcopy() */ /*------------------------------------------------------------------------- * Function: H5Tclose * * Purpose: Frees a datatype and all associated memory. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tclose(hid_t type_id) { H5T_t *dt; /* Pointer to datatype to close */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE1("e", "i", type_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (H5T_STATE_IMMUTABLE == dt->shared->state) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "immutable datatype"); /* When the reference count reaches zero the resources are freed */ if (H5I_dec_app_ref(type_id) < 0) HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "problem freeing id"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tclose() */ /*------------------------------------------------------------------------- * Function: H5Tclose_async * * Purpose: Asynchronous version of H5Tclose. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tclose_async(const char *app_file, const char *app_func, unsigned app_line, hid_t type_id, hid_t es_id) { H5T_t *dt; /* Pointer to datatype to close */ void *token = NULL; /* Request token for async operation */ void **token_ptr = H5_REQUEST_NULL; /* Pointer to request token for async operation */ H5VL_object_t *vol_obj = NULL; /* VOL object of dset_id */ H5VL_t *connector = NULL; /* VOL connector */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE5("e", "*s*sIuii", app_file, app_func, app_line, type_id, es_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (H5T_STATE_IMMUTABLE == dt->shared->state) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "immutable datatype"); /* Get dataset object's connector */ if (NULL == (vol_obj = H5VL_vol_object(type_id))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get VOL object for dataset"); /* Prepare for possible asynchronous operation */ if (H5ES_NONE != es_id) { /* Increase connector's refcount, so it doesn't get closed if closing * the dataset closes the file */ connector = vol_obj->connector; H5VL_conn_inc_rc(connector); /* Point at token for operation to set up */ token_ptr = &token; } /* end if */ /* When the reference count reaches zero the resources are freed */ if (H5I_dec_app_ref_async(type_id, token_ptr) < 0) HGOTO_ERROR(H5E_ID, H5E_BADID, FAIL, "problem freeing id"); /* If a token was created, add the token to the event set */ if (NULL != token) if (H5ES_insert(es_id, vol_obj->connector, token, H5ARG_TRACE5(__func__, "*s*sIuii", app_file, app_func, app_line, type_id, es_id)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINSERT, FAIL, "can't insert token into event set"); done: if (connector && H5VL_conn_dec_rc(connector) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement ref count on connector"); FUNC_LEAVE_API(ret_value) } /* end H5Tclose_async() */ /*------------------------------------------------------------------------- * Function: H5Tequal * * Purpose: Determines if two datatypes are equal. * * Return: Success: true if equal, false if unequal * * Failure: Negative * *------------------------------------------------------------------------- */ htri_t H5Tequal(hid_t type1_id, hid_t type2_id) { const H5T_t *dt1; /* Pointer to first datatype */ const H5T_t *dt2; /* Pointer to second datatype */ htri_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("t", "ii", type1_id, type2_id); /* check args */ if (NULL == (dt1 = (H5T_t *)H5I_object_verify(type1_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (NULL == (dt2 = (H5T_t *)H5I_object_verify(type2_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); ret_value = (0 == H5T_cmp(dt1, dt2, false)) ? true : false; done: FUNC_LEAVE_API(ret_value) } /* end H5Tequal() */ /*------------------------------------------------------------------------- * Function: H5Tlock * * Purpose: Locks a type, making it read only and non-destructable. * This is normally done by the library for predefined datatypes so * the application doesn't inadvertently change or delete a * predefined type. * * Once a datatype is locked it can never be unlocked unless * the entire library is closed. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tlock(hid_t type_id) { H5T_t *dt; /* Datatype to operate on */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE1("e", "i", type_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (H5T_STATE_NAMED == dt->shared->state || H5T_STATE_OPEN == dt->shared->state) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "unable to lock named datatype"); if (H5T_lock(dt, true) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to lock transient datatype"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tlock() */ /*------------------------------------------------------------------------- * Function: H5Tget_class * * Purpose: Returns the datatype class identifier for datatype TYPE_ID. * * Return: Success: One of the non-negative datatype class constants. * * Failure: H5T_NO_CLASS (Negative) * *------------------------------------------------------------------------- */ H5T_class_t H5Tget_class(hid_t type_id) { H5T_t *dt; /* Pointer to datatype */ H5T_class_t ret_value; /* Return value */ FUNC_ENTER_API(H5T_NO_CLASS) H5TRACE1("Tt", "i", type_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5T_NO_CLASS, "not a datatype"); /* Set return value */ ret_value = H5T_get_class(dt, false); done: FUNC_LEAVE_API(ret_value) } /* end H5Tget_class() */ /*------------------------------------------------------------------------- * Function: H5T_get_class * * Purpose: Returns the data type class identifier for a datatype ptr. * * Return: Success: One of the non-negative data type class constants. * * Failure: H5T_NO_CLASS (Negative) * *------------------------------------------------------------------------- */ H5T_class_t H5T_get_class(const H5T_t *dt, htri_t internal) { H5T_class_t ret_value = H5T_NO_CLASS; /* Return value */ FUNC_ENTER_NOAPI_NOERR assert(dt); /* Externally, a VL string is a string; internally, a VL string is a VL. */ if (internal) { ret_value = dt->shared->type; } else { if (H5T_IS_VL_STRING(dt->shared)) ret_value = H5T_STRING; else ret_value = dt->shared->type; } FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_get_class() */ /*------------------------------------------------------------------------- * Function: H5Tdetect_class * * Purpose: Check whether a datatype contains (or is) a certain type of * datatype. * * Return: true (1) or false (0) on success/Negative on failure * *------------------------------------------------------------------------- */ htri_t H5Tdetect_class(hid_t type, H5T_class_t cls) { H5T_t *dt; /* Datatype to query */ htri_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("t", "iTt", type, cls); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5T_NO_CLASS, "not a datatype"); if (!(cls > H5T_NO_CLASS && cls < H5T_NCLASSES)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5T_NO_CLASS, "not a datatype class"); /* Set return value */ if ((ret_value = H5T_detect_class(dt, cls, true)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, H5T_NO_CLASS, "can't get datatype class"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tdetect_class() */ /*------------------------------------------------------------------------- * Function: H5T_detect_class * * Purpose: Check whether a datatype contains (or is) a certain type of * datatype. * * Return: true (1) or false (0) on success/Negative on failure * *------------------------------------------------------------------------- */ htri_t H5T_detect_class(const H5T_t *dt, H5T_class_t cls, bool from_api) { unsigned i; htri_t ret_value = false; /* Return value */ FUNC_ENTER_NOAPI_NOERR assert(dt); assert(cls > H5T_NO_CLASS && cls < H5T_NCLASSES); /* Consider VL string as a string for API, as a VL for internal use. */ /* (note that this check must be performed before checking if the VL * string belongs to the H5T_VLEN class, which would otherwise return * true. -QAK) */ if (from_api && H5T_IS_VL_STRING(dt->shared)) HGOTO_DONE(H5T_STRING == cls); /* Check if this type is the correct type */ if (dt->shared->type == cls) HGOTO_DONE(true); /* check for types that might have the correct type as a component */ switch (dt->shared->type) { case H5T_COMPOUND: for (i = 0; i < dt->shared->u.compnd.nmembs; i++) { htri_t nested_ret; /* Return value from nested call */ /* Check if this field's type is the correct type */ if (dt->shared->u.compnd.memb[i].type->shared->type == cls) HGOTO_DONE(true); /* Recurse if it's VL, compound, enum or array */ if (H5T_IS_COMPLEX(dt->shared->u.compnd.memb[i].type->shared->type)) if ((nested_ret = H5T_detect_class(dt->shared->u.compnd.memb[i].type, cls, from_api)) != false) HGOTO_DONE(nested_ret); } /* end for */ break; case H5T_ARRAY: case H5T_VLEN: case H5T_ENUM: HGOTO_DONE(H5T_detect_class(dt->shared->parent, cls, from_api)); break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_REFERENCE: case H5T_NCLASSES: default: break; } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_detect_class() */ /*------------------------------------------------------------------------- * Function: H5Tis_variable_str * * Purpose: Check whether a datatype is a variable-length string * * Return: true (1) or false (0) on success/Negative on failure * *------------------------------------------------------------------------- */ htri_t H5Tis_variable_str(hid_t dtype_id) { H5T_t *dt; /* Datatype to query */ htri_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE1("t", "i", dtype_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(dtype_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); /* Set return value */ if ((ret_value = H5T_is_variable_str(dt)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "can't determine if datatype is VL-string"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tis_variable_str() */ /*------------------------------------------------------------------------- * Function: H5T_is_variable_str * * Purpose: Check whether a datatype is a variable-length string * * Return: true (1) or false (0) on success/Negative on failure * *------------------------------------------------------------------------- */ htri_t H5T_is_variable_str(const H5T_t *dt) { FUNC_ENTER_NOAPI_NOINIT_NOERR FUNC_LEAVE_NOAPI(H5T_IS_VL_STRING(dt->shared)) } /* end H5T_is_variable_str() */ /*------------------------------------------------------------------------- * Function: H5Tget_size * * Purpose: Determines the total size of a datatype in bytes. * * Return: Success: Size of the datatype in bytes. The size of * datatype is the size of an instance of that * datatype. * * Failure: 0 (valid datatypes are never zero size) * *------------------------------------------------------------------------- */ size_t H5Tget_size(hid_t type_id) { H5T_t *dt; /* Datatype to query */ size_t ret_value; /* Return value */ FUNC_ENTER_API(0) H5TRACE1("z", "i", type_id); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "not a datatype"); /* size */ ret_value = H5T_GET_SIZE(dt); done: FUNC_LEAVE_API(ret_value) } /* end H5Tget_size() */ /*------------------------------------------------------------------------- * Function: H5Tset_size * * Purpose: Sets the total size in bytes for a datatype (this operation * is not permitted on reference datatypes). If the size is * decreased so that the significant bits of the datatype * extend beyond the edge of the new size, then the `offset' * property is decreased toward zero. If the `offset' becomes * zero and the significant bits of the datatype still hang * over the edge of the new size, then the number of significant * bits is decreased. * * Adjusting the size of an H5T_STRING automatically sets the * precision to 8*size. * * All datatypes have a positive size. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tset_size(hid_t type_id, size_t size) { H5T_t *dt; /* Datatype to modify */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("e", "iz", type_id, size); /* Check args */ if (NULL == (dt = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (H5T_STATE_TRANSIENT != dt->shared->state) HGOTO_ERROR(H5E_ARGS, H5E_CANTINIT, FAIL, "datatype is read-only"); if (size <= 0 && size != H5T_VARIABLE) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "size must be positive"); if (size == H5T_VARIABLE && !H5T_IS_STRING(dt->shared)) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "only strings may be variable length"); if (H5T_ENUM == dt->shared->type && dt->shared->u.enumer.nmembs > 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "operation not allowed after members are defined"); if (H5T_REFERENCE == dt->shared->type) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "operation not defined for this datatype"); /* Modify the datatype */ if (H5T__set_size(dt, size) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to set size for datatype"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tset_size() */ /*------------------------------------------------------------------------- * Function: H5Tget_super * * Purpose: Returns the type from which TYPE is derived. In the case of * an enumeration type the return value is an integer type. * * Return: Success: Type ID for base datatype. * * Failure: negative * *------------------------------------------------------------------------- */ hid_t H5Tget_super(hid_t type) { H5T_t *dt; /* Datatype to query */ H5T_t *super = NULL; /* Supertype */ hid_t ret_value = H5I_INVALID_HID; /* Return value */ FUNC_ENTER_API(H5I_INVALID_HID) H5TRACE1("i", "i", type); if (NULL == (dt = (H5T_t *)H5I_object_verify(type, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5I_INVALID_HID, "not a datatype"); if (NULL == (super = H5T_get_super(dt))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, H5I_INVALID_HID, "not a datatype"); if ((ret_value = H5I_register(H5I_DATATYPE, super, true)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, H5I_INVALID_HID, "unable to register parent datatype"); done: if (H5I_INVALID_HID == ret_value) if (super && H5T_close_real(super) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, H5I_INVALID_HID, "unable to release super datatype info") FUNC_LEAVE_API(ret_value) } /* end H5Tget_super() */ /*------------------------------------------------------------------------- * Function: H5T_get_super * * Purpose: Private function for H5Tget_super. Returns the type from * which TYPE is derived. In the case of an enumeration type * the return value is an integer type. * * Return: Success: Data type for base data type. * Failure: NULL * *------------------------------------------------------------------------- */ H5T_t * H5T_get_super(const H5T_t *dt) { H5T_t *ret_value = NULL; FUNC_ENTER_NOAPI(NULL) assert(dt); if (!dt->shared->parent) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "not a derived data type"); if (NULL == (ret_value = H5T_copy(dt->shared->parent, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy parent data type"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_get_super() */ /*------------------------------------------------------------------------- * Function: H5T__register_int * * Purpose: Register a library internal datatype conversion routine. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ static herr_t H5T__register_int(H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5T_lib_conv_t func) { H5T_conv_func_t conv_func; /* Conversion function wrapper */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Check args */ assert(H5T_PERS_HARD == pers || H5T_PERS_SOFT == pers); assert(name && *name); assert(src); assert(dst); assert(func); /* Set up conversion function wrapper */ conv_func.is_app = false; conv_func.u.lib_func = func; /* Register conversion */ if (H5T__register(pers, name, src, dst, &conv_func) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to register internal datatype conversion routine"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__register_int() */ /*------------------------------------------------------------------------- * Function: H5T__register * * Purpose: Register a hard or soft conversion function for a data type * conversion path. The path is specified by the source and * destination data types SRC_ID and DST_ID (for soft functions * only the class of these types is important). If FUNC is a * hard function then it replaces any previous path; if it's a * soft function then it replaces all existing paths to which it * applies and is used for any new path to which it applies as * long as that path doesn't have a hard function. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ static herr_t H5T__register(H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5T_conv_func_t *conv) { H5T_path_t *old_path = NULL; /*existing conversion path */ H5T_path_t *new_path = NULL; /*new conversion path */ H5T_cdata_t cdata; /*temporary conversion data */ H5T_t *tmp_stype = NULL; /*temporary source datatype */ H5T_t *tmp_dtype = NULL; /*temporary destination datatype */ hid_t tmp_sid = H5I_INVALID_HID; /*temporary datatype ID */ hid_t tmp_did = H5I_INVALID_HID; /*temporary datatype ID */ int nprint = 0; /*number of paths shut down */ int i; /*counter */ herr_t ret_value = SUCCEED; /*return value */ FUNC_ENTER_PACKAGE /* Check args */ assert(src); assert(dst); assert(conv); assert(H5T_PERS_HARD == pers || H5T_PERS_SOFT == pers); assert(name && *name); if (H5T_PERS_HARD == pers) { /* Only bother to register the path if it's not a no-op path (for this machine) */ if (H5T_cmp(src, dst, false)) { /* Locate or create a new conversion path */ if (NULL == (new_path = H5T__path_find_real(src, dst, name, conv))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to locate/allocate conversion path"); /* Notify all other functions to recalculate private data since some * functions might cache a list of conversion functions. For * instance, the compound type converter caches a list of conversion * functions for the members, so adding a new function should cause * the list to be recalculated to use the new function. */ for (i = 0; i < H5T_g.npaths; i++) if (new_path != H5T_g.path[i]) H5T_g.path[i]->cdata.recalc = true; } /* end if */ } /* end if */ else { /* Add function to end of soft list */ if ((size_t)H5T_g.nsoft >= H5T_g.asoft) { size_t na = MAX(32, 2 * H5T_g.asoft); H5T_soft_t *x; if (NULL == (x = (H5T_soft_t *)H5MM_realloc(H5T_g.soft, na * sizeof(H5T_soft_t)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed"); H5T_g.asoft = na; H5T_g.soft = x; } /* end if */ strncpy(H5T_g.soft[H5T_g.nsoft].name, name, (size_t)H5T_NAMELEN - 1); H5T_g.soft[H5T_g.nsoft].name[H5T_NAMELEN - 1] = '\0'; H5T_g.soft[H5T_g.nsoft].src = src->shared->type; H5T_g.soft[H5T_g.nsoft].dst = dst->shared->type; H5T_g.soft[H5T_g.nsoft].conv = *conv; H5T_g.nsoft++; /* * Any existing path (except the no-op path) to which this new soft * conversion function applies should be replaced by a new path that * uses this function. */ for (i = 1; i < H5T_g.npaths; i++) { old_path = H5T_g.path[i]; assert(old_path); /* Does the new soft conversion function apply to this path? */ if (old_path->is_hard || old_path->src->shared->type != src->shared->type || old_path->dst->shared->type != dst->shared->type) continue; if (NULL == (tmp_stype = H5T_copy(old_path->src, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "unable to copy src datatype"); if (NULL == (tmp_dtype = H5T_copy(old_path->dst, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "unable to copy dst datatype"); memset(&cdata, 0, sizeof cdata); cdata.command = H5T_CONV_INIT; if (conv->is_app) { if ((tmp_sid = H5I_register(H5I_DATATYPE, tmp_stype, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register ID for source datatype"); if ((tmp_did = H5I_register(H5I_DATATYPE, tmp_dtype, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register ID for destination datatype"); if ((conv->u.app_func)(tmp_sid, tmp_did, &cdata, (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { H5I_dec_ref(tmp_sid); H5I_dec_ref(tmp_did); tmp_sid = tmp_did = H5I_INVALID_HID; tmp_stype = tmp_dtype = NULL; H5E_clear_stack(NULL); continue; } /* end if */ } /* end if */ else if ((conv->u.lib_func)(tmp_stype, tmp_dtype, &cdata, NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { H5T_close(tmp_stype); H5T_close(tmp_dtype); tmp_stype = tmp_dtype = NULL; H5E_clear_stack(NULL); continue; } /* end if */ /* Create a new conversion path */ if (NULL == (new_path = H5FL_CALLOC(H5T_path_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed"); strncpy(new_path->name, name, (size_t)H5T_NAMELEN - 1); new_path->name[H5T_NAMELEN - 1] = '\0'; if (NULL == (new_path->src = H5T_copy(old_path->src, H5T_COPY_ALL)) || NULL == (new_path->dst = H5T_copy(old_path->dst, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy data types"); new_path->conv = *conv; new_path->is_hard = false; new_path->cdata = cdata; /* Replace previous path */ H5T_g.path[i] = new_path; new_path = NULL; /*so we don't free it on error*/ /* Free old path */ H5T__print_stats(old_path, &nprint); old_path->cdata.command = H5T_CONV_FREE; if (old_path->conv.is_app) { if ((old_path->conv.u.app_func)(tmp_sid, tmp_did, &(old_path->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx " "failed to free private data for %s (ignored)\n", (size_t)old_path->conv.u.app_func, old_path->name); #endif } /* end if */ } /* end if */ else if ((old_path->conv.u.lib_func)(tmp_stype, tmp_dtype, &(old_path->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx " "failed to free private data for %s (ignored)\n", (size_t)old_path->conv.u.lib_func, old_path->name); #endif } /* end if */ (void)H5T_close_real(old_path->src); (void)H5T_close_real(old_path->dst); old_path = H5FL_FREE(H5T_path_t, old_path); /* Release temporary atoms */ if (tmp_sid >= 0) { if (H5I_dec_ref(tmp_sid) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement reference on temporary ID"); tmp_sid = H5I_INVALID_HID; tmp_stype = NULL; } else if (tmp_stype) { if (H5T_close(tmp_stype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "can't close temporary datatype"); tmp_stype = NULL; } if (tmp_did >= 0) { if (H5I_dec_ref(tmp_did) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement reference on temporary ID"); tmp_did = H5I_INVALID_HID; tmp_dtype = NULL; } else if (tmp_dtype) { if (H5T_close(tmp_dtype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "can't close temporary datatype"); tmp_dtype = NULL; } /* We don't care about any failures during the freeing process */ H5E_clear_stack(NULL); } /* end for */ } /* end else */ done: if (ret_value < 0) { if (new_path) { if (new_path->src) (void)H5T_close_real(new_path->src); if (new_path->dst) (void)H5T_close_real(new_path->dst); new_path = H5FL_FREE(H5T_path_t, new_path); } /* end if */ } /* end if */ if (tmp_sid >= 0) { if (H5I_dec_ref(tmp_sid) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement reference on temporary ID"); } else if (tmp_stype) { if (H5T_close(tmp_stype) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "can't close temporary datatype"); } if (tmp_did >= 0) { if (H5I_dec_ref(tmp_did) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, FAIL, "can't decrement reference on temporary ID"); } else if (tmp_dtype) { if (H5T_close(tmp_dtype) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "can't close temporary datatype"); } FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__register() */ /*------------------------------------------------------------------------- * Function: H5Tregister * * Purpose: Register a hard or soft conversion function for a data type * conversion path. The path is specified by the source and * destination data types SRC_ID and DST_ID (for soft functions * only the class of these types is important). If FUNC is a * hard function then it replaces any previous path; if it's a * soft function then it replaces all existing paths to which it * applies and is used for any new path to which it applies as * long as that path doesn't have a hard function. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tregister(H5T_pers_t pers, const char *name, hid_t src_id, hid_t dst_id, H5T_conv_t func) { H5T_t *src; /*source data type descriptor */ H5T_t *dst; /*destination data type desc */ H5T_conv_func_t conv_func; /* Conversion function wrapper */ herr_t ret_value = SUCCEED; /*return value */ FUNC_ENTER_API(FAIL) H5TRACE5("e", "Te*siiTC", pers, name, src_id, dst_id, func); /* Check args */ if (H5T_PERS_HARD != pers && H5T_PERS_SOFT != pers) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid function persistence"); if (!name || !*name) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "conversion must have a name for debugging"); if (NULL == (src = (H5T_t *)H5I_object_verify(src_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type"); if (NULL == (dst = (H5T_t *)H5I_object_verify(dst_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type"); if (!func) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no conversion function specified"); /* Set up conversion function wrapper */ conv_func.is_app = true; conv_func.u.app_func = func; /* Go register the function */ if (H5T__register(pers, name, src, dst, &conv_func) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "can't register conversion function"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tregister() */ /*------------------------------------------------------------------------- * Function: H5T_unregister * * Purpose: Removes conversion paths that match the specified criteria. * All arguments are optional. Missing arguments are wild cards. * The special no-op path cannot be removed. * * Return: Success: non-negative * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5T_unregister(H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5VL_object_t *owned_vol_obj, H5T_conv_t func) { H5T_path_t *path = NULL; /*conversion path */ H5T_soft_t *soft = NULL; /*soft conversion information */ int nprint = 0; /*number of paths shut down */ int i; /*counter */ FUNC_ENTER_NOAPI_NOERR /* * Remove matching entries from the soft list if: * * - The caller didn't specify a particular type (soft or hard) * of conversion path to match against or specified that soft * conversion paths should be matched against * * AND * * - The caller didn't provide the `owned_vol_obj` parameter; * if this parameter is provided, we want to leave the soft * list untouched and only remove cached conversion paths * below where the file VOL object associated with the path's * source or destination types matches the given VOL object. */ if ((H5T_PERS_DONTCARE == pers || H5T_PERS_SOFT == pers) && !owned_vol_obj) { for (i = H5T_g.nsoft - 1; i >= 0; --i) { soft = H5T_g.soft + i; assert(soft); if (name && *name && strcmp(name, soft->name) != 0) continue; if (src && src->shared->type != soft->src) continue; if (dst && dst->shared->type != soft->dst) continue; if (func && func != soft->conv.u.app_func) continue; memmove(H5T_g.soft + i, H5T_g.soft + i + 1, (size_t)(H5T_g.nsoft - (i + 1)) * sizeof(H5T_soft_t)); --H5T_g.nsoft; } /* end for */ } /* end if */ /* Remove matching conversion paths, except no-op path */ for (i = H5T_g.npaths - 1; i > 0; --i) { bool nomatch; path = H5T_g.path[i]; assert(path); nomatch = !H5T_path_match(path, pers, name, src, dst, owned_vol_obj, func); /* Not a match */ if (nomatch) { /* * Notify all other functions to recalculate private data since some * functions might cache a list of conversion functions. For * instance, the compound type converter caches a list of conversion * functions for the members, so removing a function should cause * the list to be recalculated to avoid the removed function. */ path->cdata.recalc = true; } /* end if */ else { /* Remove from table */ memmove(H5T_g.path + i, H5T_g.path + i + 1, (size_t)(H5T_g.npaths - (i + 1)) * sizeof(H5T_path_t *)); --H5T_g.npaths; /* Shut down path */ H5T__print_stats(path, &nprint); path->cdata.command = H5T_CONV_FREE; if (path->conv.is_app) { if ((path->conv.u.app_func)((hid_t)FAIL, (hid_t)FAIL, &(path->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx failed " "to free private data for %s (ignored)\n", (size_t)path->conv.u.app_func, path->name); #endif } /* end if */ } /* end if */ else if ((path->conv.u.lib_func)(NULL, NULL, &(path->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx failed " "to free private data for %s (ignored)\n", (size_t)path->conv.u.lib_func, path->name); #endif } /* end if */ (void)H5T_close_real(path->src); (void)H5T_close_real(path->dst); path = H5FL_FREE(H5T_path_t, path); H5E_clear_stack(NULL); /*ignore all shutdown errors*/ } /* end else */ } /* end for */ FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5T_unregister() */ /*------------------------------------------------------------------------- * Function: H5Tunregister * * Purpose: Removes conversion paths that match the specified criteria. * All arguments are optional. Missing arguments are wild cards. * The special no-op path cannot be removed. * * Return: Success: non-negative * * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5Tunregister(H5T_pers_t pers, const char *name, hid_t src_id, hid_t dst_id, H5T_conv_t func) { H5T_t *src = NULL, *dst = NULL; /* Datatype descriptors */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE5("e", "Te*siiTC", pers, name, src_id, dst_id, func); /* Check arguments */ if (src_id > 0 && (NULL == (src = (H5T_t *)H5I_object_verify(src_id, H5I_DATATYPE)))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "src is not a data type"); if (dst_id > 0 && (NULL == (dst = (H5T_t *)H5I_object_verify(dst_id, H5I_DATATYPE)))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dst is not a data type"); if (H5T_unregister(pers, name, src, dst, NULL, func) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDELETE, FAIL, "internal unregister function failed"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tunregister() */ /*------------------------------------------------------------------------- * Function: H5Tfind * * Purpose: Finds a conversion function that can handle a conversion from * type SRC_ID to type DST_ID. The PCDATA argument is a pointer * to a pointer to type conversion data which was created and * initialized by the type conversion function of this path * when the conversion function was installed on the path. * * Return: Success: A pointer to a suitable conversion function. * * Failure: NULL * *------------------------------------------------------------------------- */ H5T_conv_t H5Tfind(hid_t src_id, hid_t dst_id, H5T_cdata_t **pcdata /*out*/) { H5T_t *src, *dst; H5T_path_t *path; H5T_conv_t ret_value; /* Return value */ FUNC_ENTER_API(NULL) H5TRACE3("TC", "ii**!", src_id, dst_id, pcdata); /* Check args */ if (NULL == (src = (H5T_t *)H5I_object_verify(src_id, H5I_DATATYPE)) || NULL == (dst = (H5T_t *)H5I_object_verify(dst_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a data type"); if (!pcdata) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, NULL, "no address to receive cdata pointer"); /* Find it */ if (NULL == (path = H5T_path_find(src, dst))) HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, NULL, "conversion function not found"); if (pcdata) *pcdata = &(path->cdata); /* Set return value */ ret_value = path->conv.u.app_func; done: FUNC_LEAVE_API(ret_value) } /* end H5Tfind() */ /*------------------------------------------------------------------------- * Function: H5Tcompiler_conv * * Purpose: Finds out whether the library's conversion function from * type src_id to type dst_id is a compiler (hard) conversion. * A hard conversion uses compiler's casting; a soft conversion * uses the library's own conversion function. * * Return: true: hard conversion. * false: soft conversion. * FAIL: failed. * *------------------------------------------------------------------------- */ htri_t H5Tcompiler_conv(hid_t src_id, hid_t dst_id) { H5T_t *src, *dst; htri_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE2("t", "ii", src_id, dst_id); /* Check args */ if (NULL == (src = (H5T_t *)H5I_object_verify(src_id, H5I_DATATYPE)) || NULL == (dst = (H5T_t *)H5I_object_verify(dst_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type"); /* Find it */ if ((ret_value = H5T__compiler_conv(src, dst)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, FAIL, "conversion function not found"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tcompiler_conv() */ /*------------------------------------------------------------------------- * Function: H5Tconvert * * Purpose: Convert NELMTS elements from type SRC_ID to type DST_ID. The * source elements are packed in BUF and on return the * destination will be packed in BUF. That is, the conversion * is performed in place. The optional background buffer is an * array of NELMTS values of destination type which are merged * with the converted values to fill in cracks (for instance, * BACKGROUND might be an array of structs with the `a' and `b' * fields already initialized and the conversion of BUF supplies * the `c' and `d' field values). The PLIST_ID a dataset transfer * property list which is passed to the conversion functions. (It's * currently only used to pass along the VL datatype custom allocation * information -QAK 7/1/99) * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5Tconvert(hid_t src_id, hid_t dst_id, size_t nelmts, void *buf, void *background, hid_t dxpl_id) { H5T_path_t *tpath; /* type conversion info */ H5T_t *src, *dst; /* unregistered types */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE6("e", "iiz*x*xi", src_id, dst_id, nelmts, buf, background, dxpl_id); /* Check args */ if (NULL == (src = (H5T_t *)H5I_object_verify(src_id, H5I_DATATYPE)) || NULL == (dst = (H5T_t *)H5I_object_verify(dst_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data type"); if (H5P_DEFAULT == dxpl_id) dxpl_id = H5P_DATASET_XFER_DEFAULT; else if (true != H5P_isa_class(dxpl_id, H5P_DATASET_XFER)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not dataset transfer property list"); /* Set DXPL for operation */ H5CX_set_dxpl(dxpl_id); /* Find the conversion function */ if (NULL == (tpath = H5T_path_find(src, dst))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert between src and dst data types"); if (H5T_convert(tpath, src, dst, nelmts, (size_t)0, (size_t)0, buf, background) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "data type conversion failed"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tconvert() */ /*------------------------------------------------------------------------- * Function: H5Treclaim * * Purpose: Frees the buffers allocated for storing variable-length data * in memory. Only frees the VL data in the selection defined in the * dataspace. The dataset transfer property list is required to find the * correct allocation/free methods for the VL data in the buffer. * * Return: Non-negative on success, negative on failure * *------------------------------------------------------------------------- */ herr_t H5Treclaim(hid_t type_id, hid_t space_id, hid_t dxpl_id, void *buf) { H5T_t *type; H5S_t *space; /* Dataspace for iteration */ herr_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE4("e", "iii*x", type_id, space_id, dxpl_id, buf); /* Check args */ if (buf == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "'buf' pointer is NULL"); if (NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid datatype"); if (NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataspace"); if (!(H5S_has_extent(space))) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "dataspace does not have extent set"); /* Get the default dataset transfer property list if the user didn't provide one */ if (H5P_DEFAULT == dxpl_id) dxpl_id = H5P_DATASET_XFER_DEFAULT; else if (true != H5P_isa_class(dxpl_id, H5P_DATASET_XFER)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms"); /* Set DXPL for operation */ H5CX_set_dxpl(dxpl_id); /* Call internal routine */ ret_value = H5T_reclaim(type, space, buf); done: FUNC_LEAVE_API(ret_value) } /* end H5Treclaim() */ /*------------------------------------------------------------------------- * Function: H5Tencode * * Purpose: Given an datatype ID, converts the object description into * binary in a buffer. * * Return: Success: non-negative * * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5Tencode(hid_t obj_id, void *buf, size_t *nalloc) { H5T_t *dtype; herr_t ret_value = SUCCEED; FUNC_ENTER_API(FAIL) H5TRACE3("e", "i*x*z", obj_id, buf, nalloc); /* Check argument and retrieve object */ if (NULL == (dtype = (H5T_t *)H5I_object_verify(obj_id, H5I_DATATYPE))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype"); if (nalloc == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "NULL pointer for buffer size"); /* Go encode the datatype */ if (H5T_encode(dtype, (unsigned char *)buf, nalloc) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTENCODE, FAIL, "can't encode datatype"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tencode() */ /*------------------------------------------------------------------------- * Function: H5Tdecode * * Purpose: Decode a binary object description and return a new object * handle. * * Return: Success: datatype ID(non-negative) * * Failure: negative * *------------------------------------------------------------------------- */ hid_t H5Tdecode(const void *buf) { H5T_t *dt; hid_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) H5TRACE1("i", "*x", buf); /* Check args */ if (buf == NULL) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "empty buffer"); /* Create datatype by decoding buffer * There is no way to get the size of the buffer, so we pass in * SIZE_MAX and assume the caller knows what they are doing. * Really fixing this will require an H5Tdecode2() call that * takes a size parameter. */ if (NULL == (dt = H5T_decode(SIZE_MAX, (const unsigned char *)buf))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDECODE, FAIL, "can't decode object"); /* Register the type and return the ID */ if ((ret_value = H5I_register(H5I_DATATYPE, dt, true)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register data type"); done: FUNC_LEAVE_API(ret_value) } /* end H5Tdecode() */ /*------------------------------------------------------------------------- * API functions are above; library-private functions are below... *------------------------------------------------------------------------- */ /*------------------------------------------------------------------------- * Function: H5T_encode * * Purpose: Private function for H5Tencode. Converts an object * description into binary in a buffer. * * Return: Success: non-negative * * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5T_encode(H5T_t *obj, unsigned char *buf, size_t *nalloc) { size_t buf_size; /* Encoded size of datatype */ H5F_t *f = NULL; /* Fake file structure*/ herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI_NOINIT /* Allocate "fake" file structure */ if (NULL == (f = H5F_fake_alloc((uint8_t)0))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, FAIL, "can't allocate fake file struct"); /* Find out the size of buffer needed */ if ((buf_size = H5O_msg_raw_size(f, H5O_DTYPE_ID, true, obj)) == 0) HGOTO_ERROR(H5E_DATATYPE, H5E_BADSIZE, FAIL, "can't find datatype size"); /* Don't encode if buffer size isn't big enough or buffer is empty */ if (!buf || *nalloc < (buf_size + 1 + 1)) *nalloc = buf_size + 1 + 1; else { /* Encode the type of the information */ *buf++ = H5O_DTYPE_ID; /* Encode the version of the dataspace information */ *buf++ = H5T_ENCODE_VERSION; /* Encode into user's buffer */ if (H5O_msg_encode(f, H5O_DTYPE_ID, true, buf, obj) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTENCODE, FAIL, "can't encode object"); } /* end else */ done: /* Release fake file structure */ if (f && H5F_fake_free(f) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, FAIL, "unable to release fake file struct"); FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_encode() */ /*------------------------------------------------------------------------- * Function: H5T_decode * * Purpose: Private function for H5Tdecode. Reconstructs a binary * description of datatype and returns a new object handle. * * Return: Success: datatype ID(non-negative) * * Failure: negative * *------------------------------------------------------------------------- */ H5T_t * H5T_decode(size_t buf_size, const unsigned char *buf) { H5F_t *f = NULL; /* Fake file structure*/ H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Allocate "fake" file structure */ if (NULL == (f = H5F_fake_alloc((uint8_t)0))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, NULL, "can't allocate fake file struct"); /* Decode the type of the information */ if (*buf++ != H5O_DTYPE_ID) HGOTO_ERROR(H5E_DATATYPE, H5E_BADMESG, NULL, "not an encoded datatype"); /* Decode the version of the datatype information */ if (*buf++ != H5T_ENCODE_VERSION) HGOTO_ERROR(H5E_DATATYPE, H5E_VERSION, NULL, "unknown version of encoded datatype"); /* Decode the serialized datatype message */ if (NULL == (ret_value = (H5T_t *)H5O_msg_decode(f, NULL, H5O_DTYPE_ID, buf_size, buf))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDECODE, NULL, "can't decode object"); /* Mark datatype as being in memory now */ if (H5T_set_loc(ret_value, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "invalid datatype location"); /* No VOL object */ ret_value->vol_obj = NULL; done: /* Release fake file structure */ if (f && H5F_fake_free(f) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, NULL, "unable to release fake file struct"); FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_decode() */ /*------------------------------------------------------------------------- * Function: H5T__create * * Purpose: Creates a new data type and initializes it to reasonable * values. The new data type is SIZE bytes and an instance of * the class TYPE. * * Return: Success: Pointer to the new type. * * Failure: NULL * *------------------------------------------------------------------------- */ H5T_t * H5T__create(H5T_class_t type, size_t size) { H5T_t *dt = NULL; H5T_t *ret_value = NULL; FUNC_ENTER_PACKAGE switch (type) { case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: { H5T_t *origin_dt = NULL; if (NULL == (origin_dt = (H5T_t *)H5I_object(H5T_C_S1))) HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, NULL, "can't get structure for string type"); /* Copy the default string datatype */ if (NULL == (dt = H5T_copy(origin_dt, H5T_COPY_TRANSIENT))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy"); /* Modify the datatype */ if (H5T__set_size(dt, size) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to set size for string type"); } break; case H5T_BITFIELD: HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, NULL, "type class is not appropriate - use H5Tcopy()"); case H5T_OPAQUE: case H5T_COMPOUND: if (NULL == (dt = H5T__alloc())) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); dt->shared->type = type; if (type == H5T_COMPOUND) { dt->shared->u.compnd.packed = false; /* Start out unpacked */ dt->shared->u.compnd.memb_size = 0; } /* end if */ else if (type == H5T_OPAQUE) /* Initialize the tag in case it's not set later. A null tag will * cause problems for later operations. */ dt->shared->u.opaque.tag = H5MM_strdup(""); break; case H5T_ENUM: { hid_t subtype; H5T_t *sub_t_obj; if (sizeof(char) == size) subtype = H5T_NATIVE_SCHAR_g; else if (sizeof(short) == size) subtype = H5T_NATIVE_SHORT_g; else if (sizeof(int) == size) subtype = H5T_NATIVE_INT_g; else if (sizeof(long) == size) subtype = H5T_NATIVE_LONG_g; #if H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG else if (sizeof(long long) == size) subtype = H5T_NATIVE_LLONG_g; #endif /* H5_SIZEOF_LONG != H5_SIZEOF_LONG_LONG */ else HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "no applicable native integer type"); if (NULL == (dt = H5T__alloc())) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); dt->shared->type = type; if (NULL == (sub_t_obj = (H5T_t *)H5I_object(subtype))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, NULL, "unable to get datatype object"); if (NULL == (dt->shared->parent = H5T_copy(sub_t_obj, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "unable to copy base datatype"); } break; case H5T_VLEN: /* Variable length datatype */ HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, NULL, "base type required - use H5Tvlen_create()"); case H5T_ARRAY: /* Array datatype */ HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, NULL, "base type required - use H5Tarray_create2()"); case H5T_NO_CLASS: case H5T_REFERENCE: case H5T_NCLASSES: default: HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, NULL, "unknown data type class"); } /* end switch */ /* Set the size except VL string */ if (H5T_STRING != type || H5T_VARIABLE != size) dt->shared->size = size; /* No VOL object */ dt->vol_obj = NULL; /* Set return value */ ret_value = dt; done: if (NULL == ret_value) { if (dt) { if (dt->shared->owned_vol_obj && H5VL_free_object(dt->shared->owned_vol_obj) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "unable to close owned VOL object"); dt->shared = H5FL_FREE(H5T_shared_t, dt->shared); dt = H5FL_FREE(H5T_t, dt); } } FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__create() */ /*------------------------------------------------------------------------- * Function: H5T__initiate_copy * * Purpose: Allocates datatype structures, copies core fields, and initializes * VOL fields. * * Return: Success: Pointer to a new copy of the OLD_DT argument. * Failure: NULL * * Note: Common code for both H5T_copy and H5T_copy_reopen, as part of * the const-correct datatype copying routines. * *------------------------------------------------------------------------- */ static H5T_t * H5T__initiate_copy(const H5T_t *old_dt) { H5T_t *new_dt = NULL; /* Copy of datatype */ H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_PACKAGE /* Allocate space */ if (NULL == (new_dt = H5FL_MALLOC(H5T_t))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, NULL, "H5T_t memory allocation failed"); if (NULL == (new_dt->shared = H5FL_MALLOC(H5T_shared_t))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, NULL, "H5T_shared_t memory allocation failed"); /* Copy shared information */ *(new_dt->shared) = *(old_dt->shared); /* Increment ref count on owned VOL object */ if (new_dt->shared->owned_vol_obj) (void)H5VL_object_inc_rc(new_dt->shared->owned_vol_obj); /* Reset vol_obj field */ new_dt->vol_obj = NULL; /* Set return value */ ret_value = new_dt; done: if (ret_value == NULL) if (new_dt) { if (new_dt->shared) { if (new_dt->shared->owned_vol_obj && H5VL_free_object(new_dt->shared->owned_vol_obj) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "unable to close owned VOL object"); new_dt->shared = H5FL_FREE(H5T_shared_t, new_dt->shared); } /* end if */ new_dt = H5FL_FREE(H5T_t, new_dt); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__initiate_copy() */ /*------------------------------------------------------------------------- * Function: H5T__copy_transient * * Purpose: Part of recursive framework for const-correct datatype copying. * * Return: Success: Pointer to a new copy of the OLD_DT argument. * Failure: NULL * *------------------------------------------------------------------------- */ static H5T_t * H5T__copy_transient(H5T_t *old_dt) { H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_PACKAGE /* Copy datatype, with correct method */ if (NULL == (ret_value = H5T_copy(old_dt, H5T_COPY_TRANSIENT))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't make 'transient' copy of datatype"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__copy_transient() */ /*------------------------------------------------------------------------- * Function: H5T__copy_all * * Purpose: Part of recursive framework for const-correct datatype copying. * * Return: Success: Pointer to a new copy of the OLD_DT argument. * Failure: NULL * *------------------------------------------------------------------------- */ static H5T_t * H5T__copy_all(H5T_t *old_dt) { H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_PACKAGE /* Copy datatype, with correct method */ if (NULL == (ret_value = H5T_copy(old_dt, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't make 'all' copy of datatype"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__copy_transient() */ /*------------------------------------------------------------------------- * Function: H5T__complete_copy * * Purpose: Completes copying datatype fields, as part of the recursive * const-correct datatype copy routines. * * Return: Success: non-negative * Failure: negative * * Note: Common code for both H5T_copy and H5T_copy_reopen. * *------------------------------------------------------------------------- */ static herr_t H5T__complete_copy(H5T_t *new_dt, const H5T_t *old_dt, H5T_shared_t *reopened_fo, bool set_memory_type, H5T_copy_func_t copyfn) { H5T_t *tmp = NULL; /* Temporary copy of compound field's datatype */ char *s; /* Temporary copy of compound field name / enum value name */ unsigned i; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Update fields in the new struct, if we aren't sharing an already opened * committed datatype */ if (!reopened_fo) { /* Copy parent information */ if (old_dt->shared->parent) if (NULL == (new_dt->shared->parent = (*copyfn)(old_dt->shared->parent))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy datatype's parent type"); switch (new_dt->shared->type) { case H5T_COMPOUND: { ssize_t accum_change = 0; /* Amount of change in the offset of the fields */ /* * Copy all member fields to new type, then overwrite the * name and type fields of each new member with copied values. * That is, H5T_copy() is a deep copy. */ /* Only malloc if space has been allocated for members - NAF */ if (new_dt->shared->u.compnd.nalloc > 0) { if (NULL == (new_dt->shared->u.compnd.memb = H5MM_malloc(new_dt->shared->u.compnd.nalloc * sizeof(H5T_cmemb_t)))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, FAIL, "memory allocation failed"); H5MM_memcpy(new_dt->shared->u.compnd.memb, old_dt->shared->u.compnd.memb, new_dt->shared->u.compnd.nmembs * sizeof(H5T_cmemb_t)); } /* end if */ for (i = 0; i < new_dt->shared->u.compnd.nmembs; i++) { unsigned j; int old_match; if (NULL == (s = H5MM_xstrdup(new_dt->shared->u.compnd.memb[i].name))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy string for compound field's name"); new_dt->shared->u.compnd.memb[i].name = s; if (NULL == (tmp = (*copyfn)(old_dt->shared->u.compnd.memb[i].type))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy compound field's datatype"); new_dt->shared->u.compnd.memb[i].type = tmp; assert(tmp != NULL); /* Range check against compound member's offset */ if ((accum_change < 0) && ((ssize_t)new_dt->shared->u.compnd.memb[i].offset < accum_change)) HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "invalid field size in datatype"); /* Apply the accumulated size change to the offset of the field */ new_dt->shared->u.compnd.memb[i].offset += (size_t)accum_change; if (old_dt->shared->u.compnd.sorted != H5T_SORT_VALUE) { for (old_match = -1, j = 0; j < old_dt->shared->u.compnd.nmembs; j++) { if (!strcmp(new_dt->shared->u.compnd.memb[i].name, old_dt->shared->u.compnd.memb[j].name)) { old_match = (int)j; break; } /* end if */ } /* end for */ /* check if we couldn't find a match */ if (old_match < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "fields in datatype corrupted"); } /* end if */ else old_match = (int)i; /* If the field changed size, add that change to the accumulated size change */ if (new_dt->shared->u.compnd.memb[i].type->shared->size != old_dt->shared->u.compnd.memb[old_match].type->shared->size) { /* Adjust the size of the member */ new_dt->shared->u.compnd.memb[i].size = (old_dt->shared->u.compnd.memb[old_match].size * tmp->shared->size) / old_dt->shared->u.compnd.memb[old_match].type->shared->size; accum_change += (ssize_t)(new_dt->shared->u.compnd.memb[i].type->shared->size - old_dt->shared->u.compnd.memb[old_match].type->shared->size); } /* end if */ } /* end for */ /* Range check against datatype size */ if ((accum_change < 0) && ((ssize_t)new_dt->shared->size < accum_change)) HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "invalid field size in datatype"); /* Apply the accumulated size change to the size of the compound struct */ new_dt->shared->size += (size_t)accum_change; } break; case H5T_ENUM: /* * Copy all member fields to new type, then overwrite the name fields * of each new member with copied values. That is, H5T_copy() is a * deep copy. */ if (old_dt->shared->u.enumer.nalloc > 0) { if (NULL == (new_dt->shared->u.enumer.name = H5MM_malloc(new_dt->shared->u.enumer.nalloc * sizeof(char *)))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, FAIL, "enam name array memory allocation failed"); if (NULL == (new_dt->shared->u.enumer.value = H5MM_malloc(new_dt->shared->u.enumer.nalloc * new_dt->shared->size))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTALLOC, FAIL, "enam value array memory allocation failed"); H5MM_memcpy(new_dt->shared->u.enumer.value, old_dt->shared->u.enumer.value, new_dt->shared->u.enumer.nmembs * new_dt->shared->size); for (i = 0; i < new_dt->shared->u.enumer.nmembs; i++) { if (NULL == (s = H5MM_xstrdup(old_dt->shared->u.enumer.name[i]))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy string for enum value's name"); new_dt->shared->u.enumer.name[i] = s; } } else { /* Empty enum */ memset(&new_dt->shared->u.enumer, 0, sizeof(H5T_enum_t)); } break; case H5T_VLEN: case H5T_REFERENCE: if (set_memory_type) /* H5T_copy converts any type into a memory type */ if (H5T_set_loc(new_dt, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location"); break; case H5T_OPAQUE: /* * Copy the tag name. */ new_dt->shared->u.opaque.tag = H5MM_xstrdup(new_dt->shared->u.opaque.tag); break; case H5T_ARRAY: /* Re-compute the array's size, in case it's base type changed size */ new_dt->shared->size = new_dt->shared->u.array.nelem * new_dt->shared->parent->shared->size; break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_NCLASSES: default: break; } /* end switch */ } /* end if */ /* Set the cached location & name path if the original type was a named * type and the new type is also named. */ if (H5O_loc_reset(&new_dt->oloc) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRESET, FAIL, "unable to initialize location"); if (H5G_name_reset(&new_dt->path) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, FAIL, "unable to reset path"); if (new_dt->shared->state == H5T_STATE_NAMED || new_dt->shared->state == H5T_STATE_OPEN) { if (H5O_loc_copy_deep(&(new_dt->oloc), &(old_dt->oloc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy object location"); if (H5G_name_copy(&(new_dt->path), &(old_dt->path), H5_COPY_DEEP) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, FAIL, "unable to copy path"); } /* end if */ /* Copy shared location information if the new type is named or if it is * shared in the heap. */ if ((old_dt->sh_loc.type == H5O_SHARE_TYPE_SOHM || old_dt->sh_loc.type == H5O_SHARE_TYPE_HERE) || new_dt->shared->state == H5T_STATE_NAMED || new_dt->shared->state == H5T_STATE_OPEN) { if (H5O_set_shared(&(new_dt->sh_loc), &(old_dt->sh_loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, FAIL, "can't copy shared information"); } /* end if */ else /* Reset shared component info */ H5O_msg_reset_share(H5O_DTYPE_ID, new_dt); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__complete_copy() */ /*------------------------------------------------------------------------- * Function: H5T_copy * * Purpose: Copies datatype OLD_DT. The resulting data type is not * locked and is a transient type. * * Return: Success: Pointer to a new copy of the OLD_DT argument. * Failure: NULL * *------------------------------------------------------------------------- */ H5T_t * H5T_copy(const H5T_t *old_dt, H5T_copy_t method) { H5T_t *new_dt = NULL; /* New datatype */ H5T_copy_func_t copyfn; /* Pointer to correct copy routine */ H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_NOAPI(NULL) /* check args */ assert(old_dt); /* Allocate and copy core datatype information */ if (NULL == (new_dt = H5T__initiate_copy(old_dt))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy core datatype info"); /* Check what sort of copy we are making */ switch (method) { case H5T_COPY_TRANSIENT: /* * Return an unlocked transient type. */ new_dt->shared->state = H5T_STATE_TRANSIENT; copyfn = H5T__copy_transient; break; case H5T_COPY_ALL: /* * Return a transient type (locked or unlocked) or an unopened named * type. Immutable transient types are degraded to read-only. */ if (H5T_STATE_OPEN == old_dt->shared->state) new_dt->shared->state = H5T_STATE_NAMED; else if (H5T_STATE_IMMUTABLE == old_dt->shared->state) new_dt->shared->state = H5T_STATE_RDONLY; copyfn = H5T__copy_all; break; default: HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, NULL, "invalid copy method type"); } /* end switch */ /* Finish making the copy of the datatype */ if (H5T__complete_copy(new_dt, old_dt, NULL, (method == H5T_COPY_TRANSIENT), copyfn) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "can't complete datatype initialization"); /* Set return value */ ret_value = new_dt; done: if (ret_value == NULL) if (new_dt) { assert(new_dt->shared); if (new_dt->shared->owned_vol_obj && H5VL_free_object(new_dt->shared->owned_vol_obj) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "unable to close owned VOL object"); new_dt->shared = H5FL_FREE(H5T_shared_t, new_dt->shared); new_dt = H5FL_FREE(H5T_t, new_dt); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_copy() */ /*------------------------------------------------------------------------- * Function: H5T_copy_reopen * * Purpose: Copy a datatype, possibly reopening a named datatype, as part * the const-correct datatype copying routines. * * Return: Success: Pointer to a new copy of the OLD_DT argument. * Failure: NULL * *------------------------------------------------------------------------- */ H5T_t * H5T_copy_reopen(H5T_t *old_dt) { H5T_t *new_dt = NULL; /* New datatype */ H5T_shared_t *reopened_fo = NULL; /* Pointer to reopened existing named datatype */ H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_NOAPI(NULL) /* check args */ assert(old_dt); /* Allocate and copy core datatype information */ if (NULL == (new_dt = H5T__initiate_copy(old_dt))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "can't copy core datatype info"); /* * Return a transient type (locked or unlocked) or an opened named * type. Immutable transient types are degraded to read-only. */ if (old_dt->sh_loc.type == H5O_SHARE_TYPE_COMMITTED) { /* Check if the object is already open */ if (NULL == (reopened_fo = (H5T_shared_t *)H5FO_opened(old_dt->sh_loc.file, old_dt->sh_loc.u.loc.oh_addr))) { /* Clear any errors from H5FO_opened() */ H5E_clear_stack(NULL); /* Open named datatype again */ if (H5O_open(&old_dt->oloc) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to reopen named data type"); /* Insert opened named datatype into opened object list for the file */ if (H5FO_insert(old_dt->sh_loc.file, old_dt->sh_loc.u.loc.oh_addr, new_dt->shared, false) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINSERT, NULL, "can't insert datatype into list of open objects"); /* Increment object count for the object in the top file */ if (H5FO_top_incr(old_dt->sh_loc.file, old_dt->sh_loc.u.loc.oh_addr) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, NULL, "can't increment object count"); new_dt->shared->fo_count = 1; } /* end if */ else { /* The object is already open. Free the H5T_shared_t struct * we had been using and use the one that already exists. * Not terribly efficient. */ if (new_dt->shared->owned_vol_obj && H5VL_free_object(new_dt->shared->owned_vol_obj) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "unable to close owned VOL object"); new_dt->shared = H5FL_FREE(H5T_shared_t, new_dt->shared); new_dt->shared = reopened_fo; reopened_fo->fo_count++; /* Check if the object has been opened through the top file yet */ if (H5FO_top_count(old_dt->sh_loc.file, old_dt->sh_loc.u.loc.oh_addr) == 0) { /* Open the object through this top file */ if (H5O_open(&old_dt->oloc) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, NULL, "unable to open object header"); } /* end if */ /* Increment object count for the object in the top file */ if (H5FO_top_incr(old_dt->sh_loc.file, old_dt->sh_loc.u.loc.oh_addr) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINC, NULL, "can't increment object count"); } /* end else */ /* Set state for new datatype */ new_dt->shared->state = H5T_STATE_OPEN; } /* end if */ else /* Downgrade immutable datatypes to read-only */ if (H5T_STATE_IMMUTABLE == old_dt->shared->state) new_dt->shared->state = H5T_STATE_RDONLY; /* Finish making the copy of the datatype */ if (H5T__complete_copy(new_dt, old_dt, reopened_fo, true, H5T_copy_reopen) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "can't complete datatype initialization"); /* Set return value */ ret_value = new_dt; done: if (ret_value == NULL) if (new_dt) { assert(new_dt->shared); if (new_dt->shared->owned_vol_obj && H5VL_free_object(new_dt->shared->owned_vol_obj) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "unable to close owned VOL object"); new_dt->shared = H5FL_FREE(H5T_shared_t, new_dt->shared); new_dt = H5FL_FREE(H5T_t, new_dt); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_copy_reopen() */ /*------------------------------------------------------------------------- * Function: H5T_lock * * Purpose: Lock a transient data type making it read-only. If IMMUTABLE * is set then the type cannot be closed except when the library * itself closes. * * This function is a no-op if the type is not transient or if * the type is already read-only or immutable. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_lock(H5T_t *dt, bool immutable) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) assert(dt); switch (dt->shared->state) { case H5T_STATE_TRANSIENT: dt->shared->state = immutable ? H5T_STATE_IMMUTABLE : H5T_STATE_RDONLY; break; case H5T_STATE_RDONLY: if (immutable) dt->shared->state = H5T_STATE_IMMUTABLE; break; case H5T_STATE_IMMUTABLE: case H5T_STATE_NAMED: case H5T_STATE_OPEN: /*void*/ break; default: HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "invalid datatype state"); } done: FUNC_LEAVE_NOAPI(ret_value) } /*------------------------------------------------------------------------- * Function: H5T__alloc * * Purpose: Allocates a new H5T_t structure, initializing it correctly. * * Return: Pointer to new H5T_t on success/NULL on failure * *------------------------------------------------------------------------- */ H5T_t * H5T__alloc(void) { H5T_t *dt = NULL; /* Pointer to datatype allocated */ H5T_t *ret_value = NULL; /* Return value */ FUNC_ENTER_PACKAGE /* Allocate & initialize datatype wrapper info */ if (NULL == (dt = H5FL_CALLOC(H5T_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); H5O_loc_reset(&(dt->oloc)); H5G_name_reset(&(dt->path)); H5O_msg_reset_share(H5O_DTYPE_ID, dt); /* Allocate & initialize shared datatype structure */ if (NULL == (dt->shared = H5FL_CALLOC(H5T_shared_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); dt->shared->version = H5O_DTYPE_VERSION_1; /* No VOL object initially */ dt->vol_obj = NULL; /* Assign return value */ ret_value = dt; done: if (ret_value == NULL) if (dt) { if (dt->shared) { assert(!dt->shared->owned_vol_obj); dt->shared = H5FL_FREE(H5T_shared_t, dt->shared); } /* end if */ dt = H5FL_FREE(H5T_t, dt); } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__alloc() */ /*------------------------------------------------------------------------- * Function: H5T__free * * Purpose: Frees all memory associated with a datatype, but does not * free the H5T_t or H5T_shared_t structures (which should * be done in H5T_close / H5T_close_real). * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T__free(H5T_t *dt) { unsigned i; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE assert(dt && dt->shared); /* Free the ID to name info */ H5G_name_free(&(dt->path)); /* Don't free locked datatypes */ if (H5T_STATE_IMMUTABLE == dt->shared->state) HGOTO_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to close immutable datatype"); /* Close the datatype */ switch (dt->shared->type) { case H5T_COMPOUND: for (i = 0; i < dt->shared->u.compnd.nmembs; i++) { dt->shared->u.compnd.memb[i].name = (char *)H5MM_xfree(dt->shared->u.compnd.memb[i].name); (void)H5T_close_real(dt->shared->u.compnd.memb[i].type); } dt->shared->u.compnd.memb = (H5T_cmemb_t *)H5MM_xfree(dt->shared->u.compnd.memb); dt->shared->u.compnd.nmembs = 0; break; case H5T_ENUM: for (i = 0; i < dt->shared->u.enumer.nmembs; i++) dt->shared->u.enumer.name[i] = (char *)H5MM_xfree(dt->shared->u.enumer.name[i]); dt->shared->u.enumer.name = (char **)H5MM_xfree(dt->shared->u.enumer.name); dt->shared->u.enumer.value = (uint8_t *)H5MM_xfree(dt->shared->u.enumer.value); dt->shared->u.enumer.nmembs = 0; break; case H5T_OPAQUE: dt->shared->u.opaque.tag = (char *)H5MM_xfree(dt->shared->u.opaque.tag); break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_REFERENCE: case H5T_VLEN: case H5T_ARRAY: case H5T_NCLASSES: default: break; } /* end switch */ dt->shared->type = H5T_NO_CLASS; /* Close the parent */ assert(dt->shared->parent != dt); if (dt->shared->parent && H5T_close_real(dt->shared->parent) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "unable to close parent data type"); dt->shared->parent = NULL; /* Close the owned VOL object */ if (dt->shared->owned_vol_obj && H5VL_free_object(dt->shared->owned_vol_obj) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "unable to close owned VOL object"); dt->shared->owned_vol_obj = NULL; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__free() */ /*------------------------------------------------------------------------- * Function: H5T_close_real * * Purpose: Frees a datatype and all associated memory. * * Note: Does _not_ deal with open named datatypes, etc. so this * should never see a type managed by a VOL connector. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_close_real(H5T_t *dt) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ assert(dt && dt->shared); /* Clean up resources, depending on shared state */ if (dt->shared->state != H5T_STATE_OPEN) { if (H5T__free(dt) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTFREE, FAIL, "unable to free datatype"); assert(!dt->shared->owned_vol_obj); dt->shared = H5FL_FREE(H5T_shared_t, dt->shared); } /* end if */ else /* Free the group hier. path since we're not calling H5T__free() */ H5G_name_free(&(dt->path)); /* Free the 'top' datatype struct */ dt = H5FL_FREE(H5T_t, dt); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_close_real() */ /*------------------------------------------------------------------------- * Function: H5T_close * * Purpose: Frees a data type and all associated memory. Deals with * open named datatypes appropriately. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_close(H5T_t *dt) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ assert(dt); assert(dt->shared); /* Named datatype cleanups */ if (dt->shared->state == H5T_STATE_OPEN) { /* Decrement refcount count on open named datatype */ dt->shared->fo_count--; /* Sanity checks */ assert(dt->sh_loc.type == H5O_SHARE_TYPE_COMMITTED); assert(H5_addr_defined(dt->sh_loc.u.loc.oh_addr)); assert(H5_addr_defined(dt->oloc.addr)); /* If a named type is being closed then close the object header and * remove from the list of open objects in the file. */ /* Decrement the ref. count for this object in the top file */ if (H5FO_top_decr(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, FAIL, "can't decrement count for object"); /* Close things down if this is the last reference to the open named datatype */ if (0 == dt->shared->fo_count) { bool corked; /* Whether the named datatype is corked or not */ /* Uncork cache entries with object address tag for named datatype */ if (H5AC_cork(dt->oloc.file, dt->oloc.addr, H5AC__GET_CORKED, &corked) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to retrieve an object's cork status"); if (corked) if (H5AC_cork(dt->oloc.file, dt->oloc.addr, H5AC__UNCORK, NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTUNCORK, FAIL, "unable to uncork an object"); /* Remove the datatype from the list of opened objects in the file */ if (H5FO_delete(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, FAIL, "can't remove datatype from list of open objects"); if (H5O_close(&dt->oloc, NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to close data type object header"); /* Mark named datatype closed now */ dt->shared->state = H5T_STATE_NAMED; } /* end if */ else { /* Check reference count for this object in the top file */ if (H5FO_top_count(dt->sh_loc.file, dt->sh_loc.u.loc.oh_addr) == 0) { /* Close object location for named datatype */ if (H5O_close(&dt->oloc, NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to close"); } /* end if */ else /* Free object location (i.e. "unhold" the file if appropriate) */ if (H5O_loc_free(&(dt->oloc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, FAIL, "problem attempting to free location"); } /* end else */ } /* end if */ /* Clean up resources */ if (H5T_close_real(dt) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRELEASE, FAIL, "unable to free datatype"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_close() */ /*------------------------------------------------------------------------- * Function: H5T__set_size * * Purpose: Sets the total size in bytes for a data type (this operation * is not permitted on reference data types). If the size is * decreased so that the significant bits of the data type * extend beyond the edge of the new size, then the `offset' * property is decreased toward zero. If the `offset' becomes * zero and the significant bits of the data type still hang * over the edge of the new size, then the number of significant * bits is decreased. * * Adjusting the size of an H5T_STRING automatically sets the * precision to 8*size. * * All data types have a positive size. * * Return: Success: non-negative * * Failure: negative * *------------------------------------------------------------------------- */ static herr_t H5T__set_size(H5T_t *dt, size_t size) { size_t prec, offset; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Check args */ assert(dt); assert(dt->shared); assert(size != 0); assert(H5T_REFERENCE != dt->shared->type); assert(!(H5T_ENUM == dt->shared->type && 0 == dt->shared->u.enumer.nmembs)); if (dt->shared->parent) { if (H5T__set_size(dt->shared->parent, size) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to set size for parent data type"); /* Adjust size of datatype appropriately */ if (dt->shared->type == H5T_ARRAY) dt->shared->size = dt->shared->parent->shared->size * dt->shared->u.array.nelem; else if (dt->shared->type != H5T_VLEN) dt->shared->size = dt->shared->parent->shared->size; } else { if (H5T_IS_ATOMIC(dt->shared)) { offset = dt->shared->u.atomic.offset; prec = dt->shared->u.atomic.prec; /* Decrement the offset and precision if necessary */ if (prec > 8 * size) offset = 0; else if (offset + prec > 8 * size) offset = 8 * size - prec; if (prec > 8 * size) prec = 8 * size; } else prec = offset = 0; switch (dt->shared->type) { case H5T_INTEGER: case H5T_TIME: case H5T_BITFIELD: case H5T_OPAQUE: /* nothing to check */ break; case H5T_COMPOUND: /* If decreasing size, check the last member isn't being cut. */ if (size < dt->shared->size) { int num_membs = 0; unsigned i, max_index = 0; size_t memb_offset, max_offset = 0; size_t max_size; if ((num_membs = H5T_get_nmembers(dt)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to get number of members"); if (num_membs) { for (i = 0; i < (unsigned)num_membs; i++) { memb_offset = H5T_get_member_offset(dt, i); if (memb_offset > max_offset) { max_offset = memb_offset; max_index = i; } /* end if */ } /* end for */ max_size = H5T__get_member_size(dt, max_index); if (size < (max_offset + max_size)) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "size shrinking will cut off last member "); } /* end if */ /* Compound must not have been packed previously */ /* We will check if resizing changed the packed state of * this type at the end of this function */ assert(!dt->shared->u.compnd.packed); } /* end if */ break; case H5T_STRING: /* Convert string to variable-length datatype */ if (size == H5T_VARIABLE) { H5T_t *base = NULL; /* base data type */ H5T_cset_t tmp_cset; /* Temp. cset info */ H5T_str_t tmp_strpad; /* Temp. strpad info */ /* Get a copy of unsigned char type as the base/parent type */ if (NULL == (base = (H5T_t *)H5I_object(H5T_NATIVE_UCHAR))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid base datatype"); dt->shared->parent = H5T_copy(base, H5T_COPY_ALL); /* change this datatype into a VL string */ dt->shared->type = H5T_VLEN; /* * Force conversions (i.e. memory to memory conversions * should duplicate data, not point to the same VL strings) */ dt->shared->force_conv = true; /* Before we mess with the info in the union, extract the * values we need */ tmp_cset = dt->shared->u.atomic.u.s.cset; tmp_strpad = dt->shared->u.atomic.u.s.pad; /* This is a string, not a sequence */ dt->shared->u.vlen.type = H5T_VLEN_STRING; /* Set character set and padding information */ dt->shared->u.vlen.cset = tmp_cset; dt->shared->u.vlen.pad = tmp_strpad; /* Set up VL information */ if (H5T_set_loc(dt, NULL, H5T_LOC_MEMORY) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "invalid datatype location"); } /* end if */ else { prec = 8 * size; offset = 0; } /* end else */ break; case H5T_FLOAT: /* * The sign, mantissa, and exponent fields should be adjusted * first when decreasing the size of a floating point type. */ if (dt->shared->u.atomic.u.f.sign >= prec + offset || dt->shared->u.atomic.u.f.epos + dt->shared->u.atomic.u.f.esize > prec + offset || dt->shared->u.atomic.u.f.mpos + dt->shared->u.atomic.u.f.msize > prec + offset) { HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "adjust sign, mantissa, and exponent fields first"); } break; case H5T_ENUM: case H5T_VLEN: case H5T_ARRAY: case H5T_REFERENCE: assert("can't happen" && 0); break; case H5T_NO_CLASS: case H5T_NCLASSES: assert("invalid type" && 0); break; default: assert("not implemented yet" && 0); break; } /* end switch */ /* Commit (if we didn't convert this type to a VL string) */ if (dt->shared->type != H5T_VLEN) { dt->shared->size = size; if (H5T_IS_ATOMIC(dt->shared)) { dt->shared->u.atomic.offset = offset; dt->shared->u.atomic.prec = prec; } } /* end if */ /* Check if the new compound type is packed */ if (dt->shared->type == H5T_COMPOUND) H5T__update_packed(dt); } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__set_size() */ /*------------------------------------------------------------------------- * Function: H5T_get_size * * Purpose: Determines the total size of a data type in bytes. * * Return: Success: Size of the data type in bytes. The size of * the data type is the size of an instance of * that data type. * * Failure: 0 (valid data types are never zero size) * *------------------------------------------------------------------------- */ size_t H5T_get_size(const H5T_t *dt) { /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ FUNC_ENTER_NOAPI_NOINIT_NOERR /* check args */ assert(dt); assert(dt->shared); FUNC_LEAVE_NOAPI(dt->shared->size) } /* end H5T_get_size() */ /*------------------------------------------------------------------------- * Function: H5T_get_force_conv * * Purpose: Determines if the type has forced conversion. This will be * true if and only if the type keeps a pointer to a file VOL * object internally. * * Return: true/false (never fails) * *------------------------------------------------------------------------- */ bool H5T_get_force_conv(const H5T_t *dt) { /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ FUNC_ENTER_NOAPI_NOINIT_NOERR /* check args */ assert(dt); assert(dt->shared); FUNC_LEAVE_NOAPI(dt->shared->force_conv) } /* end H5T_get_force_conv() */ /*------------------------------------------------------------------------- * Function: H5T_cmp * * Purpose: Compares two data types. * * Return: Success: 0 if DT1 and DT2 are equal. * <0 if DT1 is less than DT2. * >0 if DT1 is greater than DT2. * * Failure: 0, never fails * *------------------------------------------------------------------------- */ int H5T_cmp(const H5T_t *dt1, const H5T_t *dt2, bool superset) { unsigned *idx1 = NULL, *idx2 = NULL; size_t base_size; bool swapped; unsigned u; int tmp; int ret_value = 0; FUNC_ENTER_NOAPI(0) /* Sanity check */ assert(dt1); assert(dt2); /* the easy case */ if (dt1 == dt2) HGOTO_DONE(0); assert(dt1->shared); assert(dt2->shared); /* compare */ if (dt1->shared->type < dt2->shared->type) HGOTO_DONE(-1); if (dt1->shared->type > dt2->shared->type) HGOTO_DONE(1); if (dt1->shared->size < dt2->shared->size) HGOTO_DONE(-1); if (dt1->shared->size > dt2->shared->size) HGOTO_DONE(1); if (dt1->shared->parent && !dt2->shared->parent) HGOTO_DONE(-1); if (!dt1->shared->parent && dt2->shared->parent) HGOTO_DONE(1); if (dt1->shared->parent) { tmp = H5T_cmp(dt1->shared->parent, dt2->shared->parent, superset); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); } /* end if */ switch (dt1->shared->type) { case H5T_COMPOUND: /* * Compound data types... */ if (dt1->shared->u.compnd.nmembs < dt2->shared->u.compnd.nmembs) HGOTO_DONE(-1); if (dt1->shared->u.compnd.nmembs > dt2->shared->u.compnd.nmembs) HGOTO_DONE(1); /* Build an index for each type so the names are sorted */ if (NULL == (idx1 = (unsigned *)H5MM_malloc(dt1->shared->u.compnd.nmembs * sizeof(unsigned))) || NULL == (idx2 = (unsigned *)H5MM_malloc(dt2->shared->u.compnd.nmembs * sizeof(unsigned)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, "memory allocation failed"); for (u = 0; u < dt1->shared->u.compnd.nmembs; u++) idx1[u] = idx2[u] = u; if (dt1->shared->u.enumer.nmembs > 1) { int i; for (i = (int)dt1->shared->u.compnd.nmembs - 1, swapped = true; swapped && i >= 0; --i) { int j; for (j = 0, swapped = false; j < i; j++) if (strcmp(dt1->shared->u.compnd.memb[idx1[j]].name, dt1->shared->u.compnd.memb[idx1[j + 1]].name) > 0) { unsigned tmp_idx = idx1[j]; idx1[j] = idx1[j + 1]; idx1[j + 1] = tmp_idx; swapped = true; } } for (i = (int)dt2->shared->u.compnd.nmembs - 1, swapped = true; swapped && i >= 0; --i) { int j; for (j = 0, swapped = false; j < i; j++) if (strcmp(dt2->shared->u.compnd.memb[idx2[j]].name, dt2->shared->u.compnd.memb[idx2[j + 1]].name) > 0) { unsigned tmp_idx = idx2[j]; idx2[j] = idx2[j + 1]; idx2[j + 1] = tmp_idx; swapped = true; } } } /* end if */ #ifdef H5T_DEBUG /* I don't quite trust the code above yet :-) --RPM */ for (u = 0; u < dt1->shared->u.compnd.nmembs - 1; u++) { assert(strcmp(dt1->shared->u.compnd.memb[idx1[u]].name, dt1->shared->u.compnd.memb[idx1[u + 1]].name)); assert(strcmp(dt2->shared->u.compnd.memb[idx2[u]].name, dt2->shared->u.compnd.memb[idx2[u + 1]].name)); } #endif /* Compare the members */ for (u = 0; u < dt1->shared->u.compnd.nmembs; u++) { tmp = strcmp(dt1->shared->u.compnd.memb[idx1[u]].name, dt2->shared->u.compnd.memb[idx2[u]].name); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); if (dt1->shared->u.compnd.memb[idx1[u]].offset < dt2->shared->u.compnd.memb[idx2[u]].offset) HGOTO_DONE(-1); if (dt1->shared->u.compnd.memb[idx1[u]].offset > dt2->shared->u.compnd.memb[idx2[u]].offset) HGOTO_DONE(1); if (dt1->shared->u.compnd.memb[idx1[u]].size < dt2->shared->u.compnd.memb[idx2[u]].size) HGOTO_DONE(-1); if (dt1->shared->u.compnd.memb[idx1[u]].size > dt2->shared->u.compnd.memb[idx2[u]].size) HGOTO_DONE(1); tmp = H5T_cmp(dt1->shared->u.compnd.memb[idx1[u]].type, dt2->shared->u.compnd.memb[idx2[u]].type, superset); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); } break; case H5T_ENUM: /* * Enumeration data types... */ /* If we are doing a "superset" comparison, dt2 is allowed to have * more members than dt1 */ if (superset) { if (dt1->shared->u.enumer.nmembs > dt2->shared->u.enumer.nmembs) HGOTO_DONE(1); } /* end if */ else { if (dt1->shared->u.enumer.nmembs < dt2->shared->u.enumer.nmembs) HGOTO_DONE(-1); if (dt1->shared->u.enumer.nmembs > dt2->shared->u.enumer.nmembs) HGOTO_DONE(1); } /* end else */ /* Build an index for each type so the names are sorted */ if (NULL == (idx1 = (unsigned *)H5MM_malloc(dt1->shared->u.enumer.nmembs * sizeof(unsigned))) || NULL == (idx2 = (unsigned *)H5MM_malloc(dt2->shared->u.enumer.nmembs * sizeof(unsigned)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0, "memory allocation failed"); for (u = 0; u < dt1->shared->u.enumer.nmembs; u++) idx1[u] = u; if (dt1->shared->u.enumer.nmembs > 1) { int i; for (i = (int)dt1->shared->u.enumer.nmembs - 1, swapped = true; swapped && i >= 0; --i) { int j; for (j = 0, swapped = false; j < i; j++) if (strcmp(dt1->shared->u.enumer.name[idx1[j]], dt1->shared->u.enumer.name[idx1[j + 1]]) > 0) { unsigned tmp_idx = idx1[j]; idx1[j] = idx1[j + 1]; idx1[j + 1] = tmp_idx; swapped = true; } } } for (u = 0; u < dt2->shared->u.enumer.nmembs; u++) idx2[u] = u; if (dt2->shared->u.enumer.nmembs > 1) { int i; for (i = (int)dt2->shared->u.enumer.nmembs - 1, swapped = true; swapped && i >= 0; --i) { int j; for (j = 0, swapped = false; j < i; j++) if (strcmp(dt2->shared->u.enumer.name[idx2[j]], dt2->shared->u.enumer.name[idx2[j + 1]]) > 0) { unsigned tmp_idx = idx2[j]; idx2[j] = idx2[j + 1]; idx2[j + 1] = tmp_idx; swapped = true; } } } #ifdef H5T_DEBUG /* I don't quite trust the code above yet :-) --RPM */ for (u = 0; u < dt1->shared->u.enumer.nmembs - 1; u++) { assert(strcmp(dt1->shared->u.enumer.name[idx1[u]], dt1->shared->u.enumer.name[idx1[u + 1]])); assert(strcmp(dt2->shared->u.enumer.name[idx2[u]], dt2->shared->u.enumer.name[idx2[u + 1]])); } #endif /* Compare the members */ base_size = dt1->shared->parent->shared->size; for (u = 0; u < dt1->shared->u.enumer.nmembs; u++) { unsigned idx = 0; if (superset) { unsigned lt = 0, rt; /* Final, left & right key indices */ int cmp = 1; /* Key comparison value */ /* If a superset is allowed, dt2 may have more members * than dt1, so binary search for matching member name in * dt2 */ rt = dt2->shared->u.enumer.nmembs; while (lt < rt && cmp) { idx = (lt + rt) / 2; /* compare */ if ((cmp = strcmp(dt1->shared->u.enumer.name[idx1[u]], dt2->shared->u.enumer.name[idx2[idx]])) < 0) rt = idx; else lt = idx + 1; } /* Leave, if we couldn't find match */ if (cmp) HGOTO_DONE(-1); } /* end if */ else { /* Check for exact member name match when not doing * "superset" comparison */ tmp = strcmp(dt1->shared->u.enumer.name[idx1[u]], dt2->shared->u.enumer.name[idx2[u]]); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); /* Set index value appropriately */ idx = u; } /* end else */ tmp = memcmp((uint8_t *)dt1->shared->u.enumer.value + idx1[u] * base_size, (uint8_t *)dt2->shared->u.enumer.value + idx2[idx] * base_size, base_size); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); } break; case H5T_VLEN: assert(dt1->shared->u.vlen.type > H5T_VLEN_BADTYPE && dt1->shared->u.vlen.type < H5T_VLEN_MAXTYPE); assert(dt2->shared->u.vlen.type > H5T_VLEN_BADTYPE && dt2->shared->u.vlen.type < H5T_VLEN_MAXTYPE); assert(dt1->shared->u.vlen.loc >= H5T_LOC_BADLOC && dt1->shared->u.vlen.loc < H5T_LOC_MAXLOC); assert(dt2->shared->u.vlen.loc >= H5T_LOC_BADLOC && dt2->shared->u.vlen.loc < H5T_LOC_MAXLOC); /* Arbitrarily sort sequence VL datatypes before string VL datatypes */ if (dt1->shared->u.vlen.type == H5T_VLEN_SEQUENCE && dt2->shared->u.vlen.type == H5T_VLEN_STRING) { HGOTO_DONE(-1); } else if (dt1->shared->u.vlen.type == H5T_VLEN_STRING && dt2->shared->u.vlen.type == H5T_VLEN_SEQUENCE) { HGOTO_DONE(1); } /* Arbitrarily sort VL datatypes in memory before disk */ if (dt1->shared->u.vlen.loc == H5T_LOC_MEMORY && dt2->shared->u.vlen.loc == H5T_LOC_DISK) { HGOTO_DONE(-1); } else if (dt1->shared->u.vlen.loc == H5T_LOC_DISK && dt2->shared->u.vlen.loc == H5T_LOC_MEMORY) { HGOTO_DONE(1); } else if (dt1->shared->u.vlen.loc == H5T_LOC_BADLOC && dt2->shared->u.vlen.loc != H5T_LOC_BADLOC) { HGOTO_DONE(1); } /* Don't allow VL types in different files to compare as equal */ if (dt1->shared->u.vlen.file < dt2->shared->u.vlen.file) HGOTO_DONE(-1); if (dt1->shared->u.vlen.file > dt2->shared->u.vlen.file) HGOTO_DONE(1); break; case H5T_OPAQUE: if (dt1->shared->u.opaque.tag && dt2->shared->u.opaque.tag) HGOTO_DONE(strcmp(dt1->shared->u.opaque.tag, dt2->shared->u.opaque.tag)); break; case H5T_ARRAY: if (dt1->shared->u.array.ndims < dt2->shared->u.array.ndims) HGOTO_DONE(-1); if (dt1->shared->u.array.ndims > dt2->shared->u.array.ndims) HGOTO_DONE(1); for (u = 0; u < dt1->shared->u.array.ndims; u++) { if (dt1->shared->u.array.dim[u] < dt2->shared->u.array.dim[u]) HGOTO_DONE(-1); if (dt1->shared->u.array.dim[u] > dt2->shared->u.array.dim[u]) HGOTO_DONE(1); } tmp = H5T_cmp(dt1->shared->parent, dt2->shared->parent, superset); if (tmp < 0) HGOTO_DONE(-1); if (tmp > 0) HGOTO_DONE(1); break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_REFERENCE: case H5T_NCLASSES: default: /* * Atomic datatypes... */ if (dt1->shared->u.atomic.order < dt2->shared->u.atomic.order) HGOTO_DONE(-1); if (dt1->shared->u.atomic.order > dt2->shared->u.atomic.order) HGOTO_DONE(1); if (dt1->shared->u.atomic.prec < dt2->shared->u.atomic.prec) HGOTO_DONE(-1); if (dt1->shared->u.atomic.prec > dt2->shared->u.atomic.prec) HGOTO_DONE(1); if (dt1->shared->u.atomic.offset < dt2->shared->u.atomic.offset) HGOTO_DONE(-1); if (dt1->shared->u.atomic.offset > dt2->shared->u.atomic.offset) HGOTO_DONE(1); if (dt1->shared->u.atomic.lsb_pad < dt2->shared->u.atomic.lsb_pad) HGOTO_DONE(-1); if (dt1->shared->u.atomic.lsb_pad > dt2->shared->u.atomic.lsb_pad) HGOTO_DONE(1); if (dt1->shared->u.atomic.msb_pad < dt2->shared->u.atomic.msb_pad) HGOTO_DONE(-1); if (dt1->shared->u.atomic.msb_pad > dt2->shared->u.atomic.msb_pad) HGOTO_DONE(1); switch (dt1->shared->type) { case H5T_INTEGER: if (dt1->shared->u.atomic.u.i.sign < dt2->shared->u.atomic.u.i.sign) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.i.sign > dt2->shared->u.atomic.u.i.sign) HGOTO_DONE(1); break; case H5T_FLOAT: if (dt1->shared->u.atomic.u.f.sign < dt2->shared->u.atomic.u.f.sign) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.sign > dt2->shared->u.atomic.u.f.sign) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.epos < dt2->shared->u.atomic.u.f.epos) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.epos > dt2->shared->u.atomic.u.f.epos) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.esize < dt2->shared->u.atomic.u.f.esize) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.esize > dt2->shared->u.atomic.u.f.esize) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.ebias < dt2->shared->u.atomic.u.f.ebias) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.ebias > dt2->shared->u.atomic.u.f.ebias) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.mpos < dt2->shared->u.atomic.u.f.mpos) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.mpos > dt2->shared->u.atomic.u.f.mpos) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.msize < dt2->shared->u.atomic.u.f.msize) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.msize > dt2->shared->u.atomic.u.f.msize) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.norm < dt2->shared->u.atomic.u.f.norm) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.norm > dt2->shared->u.atomic.u.f.norm) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.f.pad < dt2->shared->u.atomic.u.f.pad) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.f.pad > dt2->shared->u.atomic.u.f.pad) HGOTO_DONE(1); break; case H5T_TIME: /* order and precision are checked above */ /*void */ break; case H5T_STRING: if (dt1->shared->u.atomic.u.s.cset < dt2->shared->u.atomic.u.s.cset) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.s.cset > dt2->shared->u.atomic.u.s.cset) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.s.pad < dt2->shared->u.atomic.u.s.pad) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.s.pad > dt2->shared->u.atomic.u.s.pad) HGOTO_DONE(1); break; case H5T_BITFIELD: /*void */ break; case H5T_REFERENCE: if (dt1->shared->u.atomic.u.r.rtype < dt2->shared->u.atomic.u.r.rtype) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.r.rtype > dt2->shared->u.atomic.u.r.rtype) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.r.loc < dt2->shared->u.atomic.u.r.loc) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.r.loc > dt2->shared->u.atomic.u.r.loc) HGOTO_DONE(1); if (dt1->shared->u.atomic.u.r.file < dt2->shared->u.atomic.u.r.file) HGOTO_DONE(-1); if (dt1->shared->u.atomic.u.r.file > dt2->shared->u.atomic.u.r.file) HGOTO_DONE(1); break; case H5T_NO_CLASS: case H5T_OPAQUE: case H5T_COMPOUND: case H5T_ENUM: case H5T_VLEN: case H5T_ARRAY: case H5T_NCLASSES: default: assert("not implemented yet" && 0); break; } break; } /* end switch */ done: if (NULL != idx1) H5MM_xfree(idx1); if (NULL != idx2) H5MM_xfree(idx2); FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_cmp() */ /*------------------------------------------------------------------------- * Function: H5T_path_find * * Purpose: Library-internal wrapper to find the path which converts type * SRC_ID to type DST_ID. * * If SRC and DST are both null pointers then the special no-op * conversion path is used. * * Return: Success: Pointer to the path, valid until the path * database is modified. * * Failure: NULL if the path does not exist and no * function can be found to apply to the new path. * *------------------------------------------------------------------------- */ H5T_path_t * H5T_path_find(const H5T_t *src, const H5T_t *dst) { H5T_conv_func_t conv_func; /* Conversion function wrapper */ H5T_path_t *ret_value = NULL; /* Return value */ FUNC_ENTER_NOAPI(NULL) /* Sanity check */ assert(src); assert(src->shared); assert(dst); assert(dst->shared); /* Set up conversion function wrapper */ conv_func.is_app = false; conv_func.u.lib_func = NULL; /* Call the internal routine, with additional parameters */ if (NULL == (ret_value = H5T__path_find_real(src, dst, NULL, &conv_func))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, NULL, "can't find datatype conversion path"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_path_find() */ /*------------------------------------------------------------------------- * Function: H5T__path_find_real * * Purpose: Finds the path which converts type SRC_ID to type DST_ID, * creating a new path if necessary. If FUNC is non-zero then * it is set as the hard conversion function for that path * regardless of whether the path previously existed. Changing * the conversion function of a path causes statistics to be * reset to zero after printing them. The NAME is used only * when creating a new path and is just for debugging. * * If SRC and DST are both null pointers then the special no-op * conversion path is used. This path is always stored as the * first path in the path table. * * Return: Success: Pointer to the path, valid until the path * database is modified. * * Failure: NULL if the path does not exist and no * function can be found to apply to the new path. * *------------------------------------------------------------------------- */ static H5T_path_t * H5T__path_find_real(const H5T_t *src, const H5T_t *dst, const char *name, H5T_conv_func_t *conv) { int lt, rt; /* left and right edges */ int md; /* middle */ int cmp; /* comparison result */ int old_npaths; /* Previous number of paths in table */ H5T_path_t *table = NULL; /* path existing in the table */ H5T_path_t *path = NULL; /* new path */ H5T_t *tmp_stype = NULL; /* temporary source datatype */ H5T_t *tmp_dtype = NULL; /* temporary destination datatype */ hid_t src_id = H5I_INVALID_HID; /* source datatype identifier */ hid_t dst_id = H5I_INVALID_HID; /* destination datatype identifier */ int i; /* counter */ int nprint = 0; /* lines of output printed */ H5T_path_t *ret_value = NULL; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity check */ assert(src); assert(src->shared); assert(dst); assert(dst->shared); /* * Make sure the first entry in the table is the no-op conversion path. */ if (0 == H5T_g.npaths) { if (NULL == (H5T_g.path = (H5T_path_t **)H5MM_malloc(128 * sizeof(H5T_path_t *)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for type conversion path table"); H5T_g.apaths = 128; if (NULL == (H5T_g.path[0] = H5FL_CALLOC(H5T_path_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for no-op conversion path"); snprintf(H5T_g.path[0]->name, sizeof(H5T_g.path[0]->name), "no-op"); H5T_g.path[0]->conv.is_app = false; H5T_g.path[0]->conv.u.lib_func = H5T__conv_noop; H5T_g.path[0]->cdata.command = H5T_CONV_INIT; if (H5T__conv_noop(NULL, NULL, &(H5T_g.path[0]->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: unable to initialize no-op conversion function (ignored)\n"); #endif H5E_clear_stack(NULL); /*ignore the error*/ } /* end if */ H5T_g.path[0]->is_noop = true; H5T_g.npaths = 1; } /* end if */ /* Find the conversion path. If source and destination types are equal * then use entry[0], otherwise do a binary search over the * remaining entries. * * Only allow the no-op conversion to occur if no "force conversion" flags * are set */ if (src->shared->force_conv == false && dst->shared->force_conv == false && 0 == H5T_cmp(src, dst, true)) { table = H5T_g.path[0]; cmp = 0; md = 0; } /* end if */ else { lt = md = 1; rt = H5T_g.npaths; cmp = -1; while (cmp && lt < rt) { md = (lt + rt) / 2; assert(H5T_g.path[md]); cmp = H5T_cmp(src, H5T_g.path[md]->src, false); if (0 == cmp) cmp = H5T_cmp(dst, H5T_g.path[md]->dst, false); if (cmp < 0) rt = md; else if (cmp > 0) lt = md + 1; else table = H5T_g.path[md]; } /* end while */ } /* end else */ /* Keep a record of the number of paths in the table, in case one of the * initialization calls below (hard or soft) causes more entries to be * added to the table - QAK, 1/26/02 */ old_npaths = H5T_g.npaths; /* If we didn't find the path, if the caller is an API function specifying * a new hard conversion function, or if the caller is a private function * specifying a new hard conversion and the path is a soft conversion, then * create a new path and add the new function to the path. */ if (!table || (table && conv->is_app && conv->u.app_func) || (table && !table->is_hard && !conv->is_app && conv->u.lib_func)) { if (NULL == (path = H5FL_CALLOC(H5T_path_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for type conversion path"); if (name && *name) { strncpy(path->name, name, (size_t)H5T_NAMELEN - 1); path->name[H5T_NAMELEN - 1] = '\0'; } /* end if */ else snprintf(path->name, sizeof(path->name), "NONAME"); if (NULL == (path->src = H5T_copy(src, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy datatype for conversion path"); if (NULL == (path->dst = H5T_copy(dst, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy datatype for conversion path"); } /* end if */ else path = table; /* If a hard conversion function is specified and none is defined for the * path, or the caller is an API function, or the caller is a private function but * the existing path is a soft function, then add the new conversion to the path * and initialize its conversion data. */ if (conv->u.app_func && (!table || (table && conv->is_app) || (table && !table->is_hard && !conv->is_app))) { assert(path != table); assert(NULL == path->conv.u.app_func); if (path->src && (NULL == (tmp_stype = H5T_copy(path->src, H5T_COPY_ALL)))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "unable to copy source datatype"); if (path->dst && (NULL == (tmp_dtype = H5T_copy(path->dst, H5T_COPY_ALL)))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "unable to copy destination datatype"); path->cdata.command = H5T_CONV_INIT; if (conv->is_app) { if (tmp_stype && ((src_id = H5I_register(H5I_DATATYPE, tmp_stype, false)) < 0)) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, NULL, "unable to register ID for source datatype"); if (tmp_dtype && ((dst_id = H5I_register(H5I_DATATYPE, tmp_dtype, false)) < 0)) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, NULL, "unable to register ID for destination datatype"); if ((conv->u.app_func)(src_id, dst_id, &(path->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to initialize conversion function"); } /* end if */ else if ((conv->u.lib_func)(tmp_stype, tmp_dtype, &(path->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to initialize conversion function"); if (src_id >= 0) { if (H5I_dec_ref(src_id) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); src_id = H5I_INVALID_HID; tmp_stype = NULL; } else if (tmp_stype) { if (H5T_close(tmp_stype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); tmp_stype = NULL; } if (dst_id >= 0) { if (H5I_dec_ref(dst_id) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); dst_id = H5I_INVALID_HID; tmp_dtype = NULL; } else if (tmp_dtype) { if (H5T_close(tmp_dtype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); tmp_dtype = NULL; } path->conv = *conv; path->is_hard = true; } /* end if */ /* * If the path doesn't have a function by now (because it's a new path * and the caller didn't supply a hard function) then scan the soft list * for an applicable function and add it to the path. This can't happen * for the no-op conversion path. */ assert(path->conv.u.app_func || (src && dst)); for (i = H5T_g.nsoft - 1; i >= 0 && !path->conv.u.app_func; --i) { bool path_init_error = false; if (src->shared->type != H5T_g.soft[i].src || dst->shared->type != H5T_g.soft[i].dst) continue; assert(tmp_stype == NULL); assert(tmp_dtype == NULL); if (NULL == (tmp_stype = H5T_copy(path->src, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "unable to copy source datatype"); if (NULL == (tmp_dtype = H5T_copy(path->dst, H5T_COPY_ALL))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCOPY, NULL, "unable to copy destination datatype"); path->cdata.command = H5T_CONV_INIT; if (H5T_g.soft[i].conv.is_app) { assert(src_id == H5I_INVALID_HID); assert(dst_id == H5I_INVALID_HID); if ((src_id = H5I_register(H5I_DATATYPE, tmp_stype, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, NULL, "unable to register ID for source datatype"); if ((dst_id = H5I_register(H5I_DATATYPE, tmp_dtype, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, NULL, "unable to register ID for destination datatype"); if ((H5T_g.soft[i].conv.u.app_func)(src_id, dst_id, &(path->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { memset(&(path->cdata), 0, sizeof(H5T_cdata_t)); H5E_clear_stack(NULL); /*ignore the error*/ path_init_error = true; } /* end if */ } /* end if */ else if ((H5T_g.soft[i].conv.u.lib_func)(tmp_stype, tmp_dtype, &(path->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { memset(&(path->cdata), 0, sizeof(H5T_cdata_t)); H5E_clear_stack(NULL); /*ignore the error*/ path_init_error = true; } /* end if */ /* Finish operation, if no error */ if (!path_init_error) { strncpy(path->name, H5T_g.soft[i].name, (size_t)H5T_NAMELEN); path->name[H5T_NAMELEN - 1] = '\0'; path->conv = H5T_g.soft[i].conv; path->is_hard = false; } /* end else */ if (src_id >= 0) { if (H5I_dec_ref(src_id) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); src_id = H5I_INVALID_HID; tmp_stype = NULL; } else if (tmp_stype) { if (H5T_close(tmp_stype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); tmp_stype = NULL; } if (dst_id >= 0) { if (H5I_dec_ref(dst_id) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); dst_id = H5I_INVALID_HID; tmp_dtype = NULL; } else if (tmp_dtype) { if (H5T_close(tmp_dtype) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); tmp_dtype = NULL; } } /* end for */ if (!path->conv.u.app_func) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "no appropriate function for conversion path"); /* Check if paths were inserted into the table through a recursive call * and re-compute the correct location for this path if so. - QAK, 1/26/02 */ if (old_npaths != H5T_g.npaths) { lt = md = 1; rt = H5T_g.npaths; cmp = -1; while (cmp && lt < rt) { md = (lt + rt) / 2; assert(H5T_g.path[md]); cmp = H5T_cmp(src, H5T_g.path[md]->src, false); if (0 == cmp) cmp = H5T_cmp(dst, H5T_g.path[md]->dst, false); if (cmp < 0) rt = md; else if (cmp > 0) lt = md + 1; else table = H5T_g.path[md]; } /* end while */ } /* end if */ /* Replace an existing table entry or add a new entry */ if (table && path != table) { assert(table == H5T_g.path[md]); H5T__print_stats(table, &nprint /*in,out*/); table->cdata.command = H5T_CONV_FREE; if (table->conv.is_app) { if ((table->conv.u.app_func)((hid_t)FAIL, (hid_t)FAIL, &(table->cdata), (size_t)0, (size_t)0, (size_t)0, NULL, NULL, H5CX_get_dxpl()) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx free failed for %s (ignored)\n", (size_t)path->conv.u.app_func, path->name); #endif H5E_clear_stack(NULL); /*ignore the failure*/ } /* end if */ } /* end if */ else if ((table->conv.u.lib_func)(NULL, NULL, &(table->cdata), NULL, (size_t)0, (size_t)0, (size_t)0, NULL, NULL) < 0) { #ifdef H5T_DEBUG if (H5DEBUG(T)) fprintf(H5DEBUG(T), "H5T: conversion function 0x%016zx free failed for %s (ignored)\n", (size_t)path->conv.u.lib_func, path->name); #endif H5E_clear_stack(NULL); /*ignore the failure*/ } /* end if */ if (table->src) (void)H5T_close_real(table->src); if (table->dst) (void)H5T_close_real(table->dst); table = H5FL_FREE(H5T_path_t, table); table = path; H5T_g.path[md] = path; } /* end if */ else if (path != table) { assert(cmp); if ((size_t)H5T_g.npaths >= H5T_g.apaths) { size_t na = MAX(128, 2 * H5T_g.apaths); H5T_path_t **x; if (NULL == (x = (H5T_path_t **)H5MM_realloc(H5T_g.path, na * sizeof(H5T_path_t *)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); H5T_g.apaths = na; H5T_g.path = x; } /* end if */ if (cmp > 0) md++; memmove(H5T_g.path + md + 1, H5T_g.path + md, (size_t)(H5T_g.npaths - md) * sizeof(H5T_path_t *)); H5T_g.npaths++; H5T_g.path[md] = path; table = path; } /* end else-if */ /* Set the flag to indicate both source and destination types are compound types * for the optimization of data reading (in H5Dio.c). * Make sure that path->are_compounds is only true for compound types. */ path->are_compounds = false; if (H5T_COMPOUND == H5T_get_class(src, true) && H5T_COMPOUND == H5T_get_class(dst, true)) path->are_compounds = true; /* Set return value */ ret_value = path; done: if (!ret_value && path && path != table) { if (path->src) (void)H5T_close_real(path->src); if (path->dst) (void)H5T_close_real(path->dst); path = H5FL_FREE(H5T_path_t, path); } /* end if */ if (src_id >= 0) { if (H5I_dec_ref(src_id) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); } else if (tmp_stype) { if (H5T_close(tmp_stype) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); } if (dst_id >= 0) { if (H5I_dec_ref(dst_id) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTDEC, NULL, "can't decrement reference on temporary ID"); } else if (tmp_dtype) { if (H5T_close(tmp_dtype) < 0) HDONE_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, NULL, "can't close temporary datatype"); } FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__path_find_real() */ /*------------------------------------------------------------------------- * Function: H5T_path_match * * Purpose: Helper function to determine whether a datatype conversion * path object matches against a given set of criteria. * * Return: true/false (can't fail) * *------------------------------------------------------------------------- */ static bool H5T_path_match(H5T_path_t *path, H5T_pers_t pers, const char *name, H5T_t *src, H5T_t *dst, H5VL_object_t *owned_vol_obj, H5T_conv_t func) { bool ret_value = true; FUNC_ENTER_NOAPI_NOINIT_NOERR assert(path); if ( /* Check that the specified conversion function persistence matches */ ((H5T_PERS_SOFT == pers && path->is_hard) || (H5T_PERS_HARD == pers && !path->is_hard)) || /* Check that the specified conversion path name matches */ (name && *name && strcmp(name, path->name) != 0) || /* * Check that the specified source and destination datatypes match * the source and destination datatypes in the conversion path */ (src && H5T_cmp(src, path->src, false)) || (dst && H5T_cmp(dst, path->dst, false)) || /* * Check that the specified VOL object pointer matches the `owned_vol_obj` * field for either the source datatype or destination datatype in the * conversion path */ (owned_vol_obj && (H5T_path_match_find_type_with_volobj(path->src, owned_vol_obj) == false) && (H5T_path_match_find_type_with_volobj(path->dst, owned_vol_obj) == false)) || /* Check that the specified conversion function matches */ (func && func != path->conv.u.app_func)) ret_value = false; FUNC_LEAVE_NOAPI(ret_value) } /* H5T_path_match() */ /*------------------------------------------------------------------------- * Function: H5T_path_match_find_type_with_volobj * * Purpose: Helper function to determine whether a datatype is or * contains a datatype that has a VOL object pointer matching * the given VOL object pointer. * * Return: true/false (can't fail) * *------------------------------------------------------------------------- */ static bool H5T_path_match_find_type_with_volobj(const H5T_t *datatype, const H5VL_object_t *owned_vol_obj) { bool ret_value = false; FUNC_ENTER_NOAPI_NOINIT_NOERR assert(datatype); assert(owned_vol_obj); ret_value = (datatype->shared->owned_vol_obj == owned_vol_obj); if (!ret_value) { switch (datatype->shared->type) { case H5T_COMPOUND: for (unsigned i = 0; i < datatype->shared->u.compnd.nmembs; i++) { if (ret_value) break; ret_value = H5T_path_match_find_type_with_volobj(datatype->shared->u.compnd.memb[i].type, owned_vol_obj); } break; case H5T_VLEN: /* Should be an error if no parent, but simplify logic for a true/false return value */ if (datatype->shared->parent) ret_value = H5T_path_match_find_type_with_volobj(datatype->shared->parent, owned_vol_obj); break; case H5T_ARRAY: /* Should be an error if no parent, but simplify logic for a true/false return value */ if (datatype->shared->parent) ret_value = H5T_path_match_find_type_with_volobj(datatype->shared->parent, owned_vol_obj); break; case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_REFERENCE: /* Should have been determined by above check */ case H5T_ENUM: case H5T_NO_CLASS: /* Error value, but simplify logic for a true/false return value */ case H5T_NCLASSES: /* Error value, but simplify logic for a true/false return value */ default: ret_value = false; break; } } FUNC_LEAVE_NOAPI(ret_value) } /*------------------------------------------------------------------------- * Function: H5T_path_noop * * Purpose: Is the path the special no-op path? The no-op function can be * set by the application and there might be more than one no-op * path in a multi-threaded application if one thread is using * the no-op path when some other thread changes its definition. * * Return: true/false (can't fail) * *------------------------------------------------------------------------- */ bool H5T_path_noop(const H5T_path_t *p) { FUNC_ENTER_NOAPI_NOINIT_NOERR assert(p); FUNC_LEAVE_NOAPI(p->is_noop || (p->is_hard && 0 == H5T_cmp(p->src, p->dst, false))) } /* end H5T_path_noop() */ /*------------------------------------------------------------------------- * Function: H5T_path_compound_subset * * Purpose: Checks if the library's compound conversion function * is in use. Tells whether whether the source members are * a subset of destination, and the order is the same, and * no conversion is needed. For example: * struct source { struct destination { * TYPE1 A; --> TYPE1 A; * TYPE2 B; --> TYPE2 B; * TYPE3 C; --> TYPE3 C; * }; TYPE4 D; * TYPE5 E; * }; * * Return: A pointer to the subset info struct in p, or NULL if the * library's compound conversion function is not in use. * Points directly into the H5T_path_t structure. * *------------------------------------------------------------------------- */ H5T_subset_info_t * H5T_path_compound_subset(const H5T_path_t *p) { H5T_subset_info_t *ret_value = NULL; FUNC_ENTER_NOAPI_NOINIT_NOERR assert(p); /* Only retrieve private info if the library compound conversion * function is in use */ if (!p->conv.is_app && (p->conv.u.lib_func == H5T__conv_struct)) ret_value = H5T__conv_struct_subset(&(p->cdata)); FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_path_compound_subset */ /*------------------------------------------------------------------------- * Function: H5T_path_bkg * * Purpose: Get the "background" flag for the conversion path. * * Return: Background flag (can't fail) * *------------------------------------------------------------------------- */ H5T_bkg_t H5T_path_bkg(const H5T_path_t *p) { FUNC_ENTER_NOAPI_NOINIT_NOERR assert(p); FUNC_LEAVE_NOAPI(p->cdata.need_bkg) } /* end H5T_path_bkg() */ /*------------------------------------------------------------------------- * Function: H5T__compiler_conv * * Purpose: Private function for H5Tcompiler_conv. Finds out whether the * library's conversion function from type SRC to type DST * is a hard conversion. * * Return: true: hard conversion. * false: soft conversion. * FAIL: function failed. * *------------------------------------------------------------------------- */ static htri_t H5T__compiler_conv(H5T_t *src, H5T_t *dst) { H5T_path_t *path; htri_t ret_value = FAIL; /* Return value */ FUNC_ENTER_PACKAGE /* Find it */ if (NULL == (path = H5T_path_find(src, dst))) HGOTO_ERROR(H5E_DATATYPE, H5E_NOTFOUND, FAIL, "conversion function not found"); ret_value = (htri_t)path->is_hard; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__compiler_conv() */ /*------------------------------------------------------------------------- * Function: H5T_convert * * Purpose: Call a conversion function to convert from source to * destination data type and accumulate timing statistics. * * Return: Success: non-negative * * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5T_convert(H5T_path_t *tpath, H5T_t *src_type, H5T_t *dst_type, size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf, void *bkg) { H5T_conv_ctx_t conv_ctx = {0}; #ifdef H5T_DEBUG H5_timer_t timer = {0}; /* Timer for conversion */ #endif hid_t src_type_id = H5I_INVALID_HID; hid_t dst_type_id = H5I_INVALID_HID; herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI(FAIL) #ifdef H5T_DEBUG if (H5DEBUG(T)) { /* Initialize and start timer */ H5_timer_init(&timer); H5_timer_start(&timer); } /* end if */ #endif /* Get the datatype conversion exception callback structure from the API context */ if (H5CX_get_dt_conv_cb(&conv_ctx.cb_struct) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback"); /* * If this is an application conversion function or an exception callback * function was supplied, register IDs for the datatypes so we can pass * those as appropriate. Also grab the DXPL if necessary so we can pass * that to the app conversion function. */ if (tpath->conv.is_app || conv_ctx.cb_struct.func) { if ((src_type_id = H5I_register(H5I_DATATYPE, src_type, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register ID for source datatype"); if ((dst_type_id = H5I_register(H5I_DATATYPE, dst_type, false)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREGISTER, FAIL, "unable to register ID for destination datatype"); if (tpath->conv.is_app) conv_ctx.dxpl_id = H5CX_get_dxpl(); } conv_ctx.src_type_id = src_type_id; conv_ctx.dst_type_id = dst_type_id; if (H5T_convert_with_ctx(tpath, src_type, dst_type, &conv_ctx, nelmts, buf_stride, bkg_stride, buf, bkg) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "datatype conversion failed"); done: /* Remove IDs, but don't decrement their reference counts, as they * could have been registered for datatypes that weren't copied */ if ((src_type_id >= 0) && (NULL == H5I_remove(src_type_id))) HDONE_ERROR(H5E_DATATYPE, H5E_CANTFREE, FAIL, "can't decrement temporary datatype ID"); if ((dst_type_id >= 0) && (NULL == H5I_remove(dst_type_id))) HDONE_ERROR(H5E_DATATYPE, H5E_CANTFREE, FAIL, "can't decrement temporary datatype ID"); #ifdef H5T_DEBUG if (H5DEBUG(T)) { /* Stop timer */ H5_timer_stop(&timer); /* Record elapsed timer info */ H5_timer_get_times(timer, &tpath->stats.times); /* Increment # of calls and # of elements converted */ tpath->stats.ncalls++; tpath->stats.nelmts += nelmts; } /* end if */ #endif FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_convert() */ /*------------------------------------------------------------------------- * Function: H5T_convert_with_ctx * * Purpose: Helper routine for H5T_convert that accepts a pointer to a * H5T_conv_ctx_t conversion context structure. Useful for * conversion routines involving container datatypes, such as * compounds, where the conversion context structure that was * setup during the initial H5T_convert call can be reused. * This avoids the expensive and unnecessary overhead of * recreating this structure and possibly re-registering IDs for * the source and destination datatypes for every single member * of the container datatype and every single element being * converted that consists of that container datatype. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_convert_with_ctx(H5T_path_t *tpath, H5T_t *src_type, H5T_t *dst_type, const H5T_conv_ctx_t *conv_ctx, size_t nelmts, size_t buf_stride, size_t bkg_stride, void *buf, void *bkg) { herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI(FAIL) /* Call the appropriate conversion callback */ tpath->cdata.command = H5T_CONV_CONV; if (tpath->conv.is_app) { if ((tpath->conv.u.app_func)(conv_ctx->src_type_id, conv_ctx->dst_type_id, &(tpath->cdata), nelmts, buf_stride, bkg_stride, buf, bkg, conv_ctx->dxpl_id) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "datatype conversion failed"); } /* end if */ else if ((tpath->conv.u.lib_func)(src_type, dst_type, &(tpath->cdata), conv_ctx, nelmts, buf_stride, bkg_stride, buf, bkg) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "datatype conversion failed"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_convert_with_ctx() */ /*------------------------------------------------------------------------- * Function: H5T_oloc * * Purpose: Returns a pointer to the object location for a named datatype. * * Return: Success: Ptr directly into named datatype * Failure: NULL * *------------------------------------------------------------------------- */ H5O_loc_t * H5T_oloc(H5T_t *dt) { H5O_loc_t *ret_value = NULL; FUNC_ENTER_NOAPI(NULL) assert(dt); switch (dt->shared->state) { case H5T_STATE_TRANSIENT: case H5T_STATE_RDONLY: case H5T_STATE_IMMUTABLE: HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "not a named datatype"); case H5T_STATE_NAMED: case H5T_STATE_OPEN: assert(dt->sh_loc.type == H5O_SHARE_TYPE_COMMITTED); ret_value = &dt->oloc; break; default: HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, NULL, "invalid datatype state"); } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_oloc() */ /*------------------------------------------------------------------------- * Function: H5T_nameof * * Purpose: Returns a pointer to the path for a named datatype. * * Return: Success: Ptr directly into named datatype * Failure: NULL * *------------------------------------------------------------------------- */ H5G_name_t * H5T_nameof(H5T_t *dt) { H5G_name_t *ret_value = NULL; FUNC_ENTER_NOAPI(NULL) assert(dt); switch (dt->shared->state) { case H5T_STATE_TRANSIENT: case H5T_STATE_RDONLY: case H5T_STATE_IMMUTABLE: HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "not a named datatype"); case H5T_STATE_NAMED: case H5T_STATE_OPEN: ret_value = &(dt->path); break; default: HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, NULL, "invalid datatype state"); } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_nameof() */ /*------------------------------------------------------------------------- * Function: H5T_is_immutable * * Purpose: Check if a datatype is immutable. * * Return: true * * false * *------------------------------------------------------------------------- */ htri_t H5T_is_immutable(const H5T_t *dt) { htri_t ret_value = false; FUNC_ENTER_NOAPI_NOERR assert(dt); if (dt->shared->state == H5T_STATE_IMMUTABLE) ret_value = true; FUNC_LEAVE_NOAPI(ret_value) } /*------------------------------------------------------------------------- * Function: H5T_is_named * * Purpose: Check if a datatype is named/committed. * * Return: true/false/FAIL * *------------------------------------------------------------------------- */ htri_t H5T_is_named(const H5T_t *dt) { htri_t ret_value = false; FUNC_ENTER_NOAPI_NOERR assert(dt); if (dt->vol_obj) ret_value = true; else ret_value = (H5T_STATE_OPEN == dt->shared->state || H5T_STATE_NAMED == dt->shared->state); FUNC_LEAVE_NOAPI(ret_value) } /*------------------------------------------------------------------------- * Function: H5T_convert_committed_datatype * * Purpose: To convert the committed datatype "dt" to a transient embedded * type if the file location associated with the committed datatype is * different from the parameter "f". * "f" is the file location where the dataset or attribute will be created. * * Notes: See HDFFV-9940 * * Return: Success: non-negative * Failure: negative * *------------------------------------------------------------------------- */ herr_t H5T_convert_committed_datatype(H5T_t *dt, H5F_t *f) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) assert(dt); assert(f); if (H5T_is_named(dt) && (dt->sh_loc.file != f)) { assert(dt->sh_loc.type == H5O_SHARE_TYPE_COMMITTED); H5O_msg_reset_share(H5O_DTYPE_ID, dt); if (H5O_loc_free(&dt->oloc) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTRESET, FAIL, "unable to initialize location"); if (H5G_name_free(&dt->path) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTOPENOBJ, FAIL, "unable to reset path"); /* If the datatype is committed through the VOL, close it */ if (NULL != dt->vol_obj) { H5VL_object_t *vol_obj = dt->vol_obj; /* Close the datatype through the VOL*/ if (H5VL_datatype_close(vol_obj, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CLOSEERROR, FAIL, "unable to close datatype"); /* Free the datatype and set the VOL object pointer to NULL */ if (H5VL_free_object(vol_obj) < 0) HGOTO_ERROR(H5E_ATTR, H5E_CANTDEC, FAIL, "unable to free VOL object"); dt->vol_obj = NULL; } /* end if */ dt->shared->state = H5T_STATE_TRANSIENT; } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_convert_committed_datatype() */ /*-------------------------------------------------------------------------- * Function: H5T_get_ref_type * * Purpose: Retrieves the type of reference for a datatype * H5T_t *dt; IN: datatype pointer for the reference datatype * * Return: Success: A reference type defined in H5Rpublic.h * Failure: H5R_BADTYPE * Notes: Given a reference datatype object, this function returns the reference type * of the datatype. *-------------------------------------------------------------------------- */ H5R_type_t H5T_get_ref_type(const H5T_t *dt) { H5R_type_t ret_value = H5R_BADTYPE; FUNC_ENTER_NOAPI_NOERR assert(dt); if (dt->shared->type == H5T_REFERENCE) ret_value = dt->shared->u.atomic.u.r.rtype; FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_get_ref_type() */ /*------------------------------------------------------------------------- * Function: H5T_is_sensible * * Purpose: Determines if a data type is sensible to store on disk * (i.e. not partially initialized) * * Return: Success: true, false * * Failure: Negative * *------------------------------------------------------------------------- */ htri_t H5T_is_sensible(const H5T_t *dt) { htri_t ret_value = FAIL; /* Return value */ FUNC_ENTER_NOAPI_NOERR assert(dt); switch (dt->shared->type) { case H5T_COMPOUND: /* Only allow compound datatypes with at least one member to be stored on disk */ if (dt->shared->u.compnd.nmembs > 0) ret_value = true; else ret_value = false; break; case H5T_ENUM: /* Only allow enum datatypes with at least one member to be stored on disk */ if (dt->shared->u.enumer.nmembs > 0) ret_value = true; else ret_value = false; break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_REFERENCE: case H5T_VLEN: case H5T_ARRAY: case H5T_NCLASSES: default: /* Assume all other datatype are sensible to store on disk */ ret_value = true; break; } /* end switch */ FUNC_LEAVE_NOAPI(ret_value) } /*-------------------------------------------------------------------------- NAME H5T_set_loc PURPOSE Recursively mark any datatypes as on disk/in memory USAGE htri_t H5T_set_loc(dt,f,loc) H5T_t *dt; IN/OUT: Pointer to the datatype to mark H5F_t *f; IN: Pointer to the file the datatype is in H5T_loc_t loc IN: location of type RETURNS One of two values on success: true - If the location of any vlen types changed false - If the location of any vlen types is the same <0 is returned on failure DESCRIPTION Recursively descends any VL or compound datatypes to mark all VL datatypes as either on disk or in memory. -------------------------------------------------------------------------- */ htri_t H5T_set_loc(H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) { htri_t changed; /* Whether H5T_set_loc changed the type (even if the size didn't change) */ htri_t ret_value = 0; /* Indicate that success, but no location change */ unsigned i; /* Local index variable */ size_t old_size; /* Previous size of a field */ FUNC_ENTER_NOAPI(FAIL) assert(dt); assert(loc >= H5T_LOC_BADLOC && loc < H5T_LOC_MAXLOC); /* Datatypes can't change in size if the force_conv flag is not set */ if (dt->shared->force_conv) { /* Check the datatype of this element */ switch (dt->shared->type) { case H5T_ARRAY: /* Recurse on VL, compound and array base element type */ /* Recurse if it's VL, compound, enum or array */ /* (If the force_conv flag is _not_ set, the type cannot change in size, so don't recurse) */ if (dt->shared->parent->shared->force_conv && H5T_IS_COMPLEX(dt->shared->parent->shared->type)) { /* Keep the old base element size for later */ old_size = dt->shared->parent->shared->size; /* Mark the VL, compound or array type */ if ((changed = H5T_set_loc(dt->shared->parent, file, loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "Unable to set VL location"); if (changed > 0) ret_value = changed; /* Check if the field changed size */ if (old_size != dt->shared->parent->shared->size) { /* Adjust the size of the array */ dt->shared->size = dt->shared->u.array.nelem * dt->shared->parent->shared->size; } /* end if */ } /* end if */ break; case H5T_COMPOUND: /* Check each field and recurse on VL, compound and array type */ { ssize_t accum_change = 0; /* Amount of change in the offset of the fields */ /* Sort the fields based on offsets */ H5T__sort_value(dt, NULL); for (i = 0; i < dt->shared->u.compnd.nmembs; i++) { H5T_t *memb_type; /* Member's datatype pointer */ /* Range check against compound member's offset */ if ((accum_change < 0) && ((ssize_t)dt->shared->u.compnd.memb[i].offset < accum_change)) HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "invalid field size in datatype"); /* Apply the accumulated size change to the offset of the field */ dt->shared->u.compnd.memb[i].offset += (size_t)accum_change; /* Set the member type pointer (for convenience) */ memb_type = dt->shared->u.compnd.memb[i].type; /* Recurse if it's VL, compound, enum or array */ /* (If the force_conv flag is _not_ set, the type cannot change in size, so don't recurse) */ if (memb_type->shared->force_conv && H5T_IS_COMPLEX(memb_type->shared->type)) { /* Keep the old field size for later */ old_size = memb_type->shared->size; /* Mark the VL, compound, enum or array type */ if ((changed = H5T_set_loc(memb_type, file, loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "Unable to set VL location"); if (changed > 0) ret_value = changed; /* Check if the field changed size */ if (old_size != memb_type->shared->size) { /* Fail if the old_size is zero */ if (0 == old_size) HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "old_size of zero would cause division by zero"); /* Adjust the size of the member */ dt->shared->u.compnd.memb[i].size = (dt->shared->u.compnd.memb[i].size * memb_type->shared->size) / old_size; /* Add that change to the accumulated size change */ accum_change += (ssize_t)(memb_type->shared->size - old_size); } /* end if */ } /* end if */ } /* end for */ /* Range check against datatype size */ if ((accum_change < 0) && ((ssize_t)dt->shared->size < accum_change)) HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "invalid field size in datatype"); /* Apply the accumulated size change to the datatype */ dt->shared->size += (size_t)accum_change; } break; case H5T_VLEN: /* Recurse on the VL information if it's VL, compound or array, then free VL sequence */ /* Recurse if it's VL, compound, enum or array (ignore references here so that we can encode * them as part of the same blob)*/ /* (If the force_conv flag is _not_ set, the type cannot change in size, so don't recurse) */ if (dt->shared->parent->shared->force_conv && H5T_IS_COMPLEX(dt->shared->parent->shared->type) && (dt->shared->parent->shared->type != H5T_REFERENCE)) { if ((changed = H5T_set_loc(dt->shared->parent, file, loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "Unable to set VL location"); if (changed > 0) ret_value = changed; } /* end if */ /* Mark this VL sequence */ if ((changed = H5T__vlen_set_loc(dt, file, loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "Unable to set VL location"); if (changed > 0) ret_value = changed; break; case H5T_REFERENCE: /* Reference types go through type conversion */ if ((ret_value = H5T__ref_set_loc(dt, file, loc)) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "Unable to set reference location"); break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_ENUM: case H5T_NCLASSES: default: break; } /* end switch */ } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_set_loc() */ /*------------------------------------------------------------------------- * Function: H5T_is_relocatable * * Purpose: Check if a datatype will change between disk and memory. * * Notes: Currently, only variable-length and references change * between disk & memory (see cases where things are changed in * the H5T_set_loc() code above). * * Return: * One of two values on success: * true - If the location of any vlen types changed * false - If the location of any vlen types is the same * <0 is returned on failure * *------------------------------------------------------------------------- */ htri_t H5T_is_relocatable(const H5T_t *dt) { htri_t ret_value = false; FUNC_ENTER_NOAPI_NOERR /* Sanity check */ assert(dt); /* VL and reference datatypes are relocatable */ if (H5T_detect_class(dt, H5T_VLEN, false) || H5T_detect_class(dt, H5T_REFERENCE, false)) ret_value = true; FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_is_relocatable() */ /*------------------------------------------------------------------------- * Function: H5T__detect_vlen_ref * * Purpose: Check whether a datatype contains (or is) a vlen reference * datatype. * * Return: true (1) or false (0) on success * (Can't fail) * *------------------------------------------------------------------------- */ static bool H5T__detect_vlen_ref(const H5T_t *dt) { unsigned u; /* Local index variable */ bool ret_value = false; /* Return value */ FUNC_ENTER_PACKAGE_NOERR /* Sanity checks */ assert(dt); /* Check if this datatype is a vlen reference */ /* TODO currently H5T_STD_REF is always considered as a vlen type */ if (H5T_REFERENCE == dt->shared->type && !dt->shared->u.atomic.u.r.opaque) HGOTO_DONE(true); /* Check for types that might have the correct type as a component */ switch (dt->shared->type) { case H5T_COMPOUND: /* Iterate over all the compound datatype's fields */ for (u = 0; u < dt->shared->u.compnd.nmembs; u++) /* Recurse on field's datatype */ if (H5T__detect_vlen_ref(dt->shared->u.compnd.memb[u].type)) HGOTO_DONE(true); break; case H5T_ARRAY: case H5T_VLEN: case H5T_ENUM: HGOTO_DONE(H5T__detect_vlen_ref(dt->shared->parent)); break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_REFERENCE: case H5T_NCLASSES: default: break; } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__detect_vlen_ref() */ /*------------------------------------------------------------------------- * Function: H5T_is_vl_storage * * Purpose: Check if a datatype will be stored in a variable-length form. * * Notes: Currently, only variable-length string & sequences and region * references are stored in a variable-length form. * * Return: * One of two values on success: * true - If the datatype will be stored in a variable-length form * false - If the datatype will NOT be stored in a variable-length form * <0 is returned on failure * *------------------------------------------------------------------------- */ htri_t H5T_is_vl_storage(const H5T_t *dt) { htri_t ret_value = false; FUNC_ENTER_NOAPI_NOERR /* Sanity check */ assert(dt); /* VL and region reference datatypes are stored in variable-length form */ if (H5T_detect_class(dt, H5T_VLEN, false)) ret_value = true; else if (H5T_detect_class(dt, H5T_REFERENCE, false)) ret_value = H5T__detect_vlen_ref(dt); else ret_value = false; FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_is_vl_storage() */ /*------------------------------------------------------------------------- * Function: H5T__upgrade_version_cb * * Purpose: H5T__visit callback to Upgrade the version of a datatype * (if there's any benefit to doing so) * * Note: The behavior below is tightly coupled with the "better" * encodings for datatype messages in the datatype message * encoding routine. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ static herr_t H5T__upgrade_version_cb(H5T_t *dt, void *op_value) { FUNC_ENTER_PACKAGE_NOERR /* Sanity check */ assert(dt); assert(op_value); /* Special behavior for each type of datatype */ switch (dt->shared->type) { case H5T_COMPOUND: case H5T_ARRAY: case H5T_ENUM: /* These types benefit from "upgrading" their version */ if (*(unsigned *)op_value > dt->shared->version) dt->shared->version = *(unsigned *)op_value; break; case H5T_VLEN: if (dt->shared->parent->shared->version > dt->shared->version) dt->shared->version = dt->shared->parent->shared->version; break; case H5T_NO_CLASS: case H5T_INTEGER: case H5T_FLOAT: case H5T_TIME: case H5T_STRING: case H5T_BITFIELD: case H5T_OPAQUE: case H5T_REFERENCE: case H5T_NCLASSES: default: break; } /* end switch */ FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5T__upgrade_version_cb() */ /*------------------------------------------------------------------------- * Function: H5T__upgrade_version * * Purpose: Upgrade the version of a datatype (if there's any benefit to * doing so) and recursively apply to compound members and/or * parent datatypes. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T__upgrade_version(H5T_t *dt, unsigned new_version) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity check */ assert(dt); /* Iterate over entire datatype, upgrading the version of components, if it's useful */ if (H5T__visit(dt, (H5T_VISIT_SIMPLE | H5T_VISIT_COMPLEX_LAST), H5T__upgrade_version_cb, &new_version) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_BADITER, FAIL, "iteration to upgrade datatype encoding version failed"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T__upgrade_version() */ /*------------------------------------------------------------------------- * Function: H5T_set_version * * Purpose: Set the encoding for a datatype to the version indicated by * the file's low bound if that is higher than the datatype's * version. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_set_version(H5F_t *f, H5T_t *dt) { unsigned vers; /* The version */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ assert(f); assert(dt); vers = H5O_dtype_ver_bounds[H5F_LOW_BOUND(f)]; if (vers > dt->shared->version) { /* Upgrade the format version for the datatype */ if (H5T__upgrade_version(dt, vers) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "can't upgrade datatype encoding"); } /* Version bounds check */ if (dt->shared->version > H5O_dtype_ver_bounds[H5F_HIGH_BOUND(f)]) HGOTO_ERROR(H5E_DATATYPE, H5E_BADRANGE, FAIL, "Datatype version out of bounds"); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_set_version() */ /*------------------------------------------------------------------------- * Function: H5T_patch_file * * Purpose: Patch the top-level file pointers contained in dt to point * to f, if dt is a committed type. This is possible because * the top-level file pointer can be closed out from under * dt while dt is contained in the shared file's cache. * * Return: SUCCEED * *------------------------------------------------------------------------- */ herr_t H5T_patch_file(H5T_t *dt, H5F_t *f) { herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI_NOERR /* Sanity check */ assert(dt); assert(f); if (H5T_STATE_OPEN == dt->shared->state || H5T_STATE_NAMED == dt->shared->state) { dt->oloc.file = f; dt->sh_loc.file = f; } /* end if */ FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_patch_file() */ /*------------------------------------------------------------------------- * Function: H5T_patch_vlen_file * * Purpose: Patch the top-level file pointer contained in (dt->shared->u.vlen.file) * to point to file. This is possible because * the top-level file pointer can be closed out from under * dt while dt is contained in the shared file's cache. * * Return: SUCCEED * *------------------------------------------------------------------------- */ herr_t H5T_patch_vlen_file(H5T_t *dt, H5VL_object_t *file) { FUNC_ENTER_NOAPI_NOINIT_NOERR /* Sanity check */ assert(dt); assert(dt->shared); assert(file); if ((dt->shared->type == H5T_VLEN) && dt->shared->u.vlen.file != file) dt->shared->u.vlen.file = file; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5T_patch_vlen_file() */ /*------------------------------------------------------------------------- * Function: H5T_own_vol_obj * * Purpose: Transfers ownership of the supplied VOL object to the * datatype, the VOL object will be freed when the datatype * is closed. * * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ herr_t H5T_own_vol_obj(H5T_t *dt, H5VL_object_t *vol_obj) { herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ assert(dt); assert(dt->shared); assert(vol_obj); /* Currently no support for owning multiple VOL objects, free the previous * owned object. Currently this is only used for holding open VOL objects * used in the "loc" for vlens and references, so if this is being * overwritten we don't need the old one anyways. */ if (dt->shared->owned_vol_obj && H5VL_free_object(dt->shared->owned_vol_obj) < 0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCLOSEOBJ, FAIL, "unable to close owned VOL object"); /* Take ownership */ dt->shared->owned_vol_obj = vol_obj; (void)H5VL_object_inc_rc(vol_obj); done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5T_own_vol_obj() */ /*------------------------------------------------------------------------- * Function: H5T__get_path_table_npaths * * Purpose: Testing function to return the number of type conversion * paths currently stored in the type conversion path table * cache. * * Return: Number of type conversion paths (can't fail) * *------------------------------------------------------------------------- */ int H5T__get_path_table_npaths(void) { int ret_value = 0; FUNC_ENTER_PACKAGE_NOERR ret_value = H5T_g.npaths; FUNC_LEAVE_NOAPI(ret_value) }