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Diffstat (limited to 'src/H5Tref.c')
| -rw-r--r-- | src/H5Tref.c | 1218 |
1 files changed, 1218 insertions, 0 deletions
diff --git a/src/H5Tref.c b/src/H5Tref.c new file mode 100644 index 0000000..b357baa --- /dev/null +++ b/src/H5Tref.c @@ -0,0 +1,1218 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Module Info: This module contains the functionality for reference + * datatypes in the H5T interface. + */ + +#include "H5Tmodule.h" /* This source code file is part of the H5T module */ +#define H5F_FRIEND /*suppress error about including H5Fpkg */ +#define H5R_FRIEND /*suppress error about including H5Rpkg */ + +#include "H5private.h" /* Generic Functions */ +#include "H5CXprivate.h" /* API Contexts */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Iprivate.h" /* IDs */ +#include "H5Fpkg.h" /* File */ +#include "H5Rpkg.h" /* References */ +#include "H5Tpkg.h" /* Datatypes */ + +#include "H5VLnative_private.h" /* Native VOL connector */ + +/****************/ +/* Local Macros */ +/****************/ + +#define H5T_REF_MEM_SIZE (H5R_REF_BUF_SIZE) +#define H5T_REF_OBJ_MEM_SIZE (H5R_OBJ_REF_BUF_SIZE) +#define H5T_REF_DSETREG_MEM_SIZE (H5R_DSET_REG_REF_BUF_SIZE) + +#define H5T_REF_OBJ_DISK_SIZE(f) (H5F_SIZEOF_ADDR(f)) +#define H5T_REF_DSETREG_DISK_SIZE(f) (H5HG_HEAP_ID_SIZE(f)) + +/******************/ +/* Local Typedefs */ +/******************/ + +/* For region compatibility support */ +struct H5Tref_dsetreg { + H5O_token_t token; /* Object token */ + H5S_t *space; /* Dataspace */ +}; + +/********************/ +/* Local Prototypes */ +/********************/ + +static herr_t H5T__ref_mem_isnull(const H5VL_object_t *src_file, const void *src_buf, hbool_t *isnull); +static herr_t H5T__ref_mem_setnull(H5VL_object_t *dst_file, void *dst_buf, void *bg_buf); +static size_t H5T__ref_mem_getsize(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, hbool_t *dst_copy); +static herr_t H5T__ref_mem_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size); +static herr_t H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5R_type_t src_type, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size, void *bg_buf); + +static herr_t H5T__ref_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, hbool_t *isnull); +static herr_t H5T__ref_disk_setnull(H5VL_object_t *dst_file, void *dst_buf, void *bg_buf); +static size_t H5T__ref_disk_getsize(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, hbool_t *dst_copy); +static herr_t H5T__ref_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size); +static herr_t H5T__ref_disk_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5R_type_t src_type, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size, void *bg_buf); + +/* For compatibility */ +static herr_t H5T__ref_obj_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, hbool_t *isnull); +static size_t H5T__ref_obj_disk_getsize(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, hbool_t *dst_copy); +static herr_t H5T__ref_obj_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size); + +static herr_t H5T__ref_dsetreg_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, hbool_t *isnull); +static size_t H5T__ref_dsetreg_disk_getsize(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, hbool_t *dst_copy); +static herr_t H5T__ref_dsetreg_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size); + +/*******************/ +/* Local Variables */ +/*******************/ + +/* Class for reference in memory */ +static const H5T_ref_class_t H5T_ref_mem_g = { + H5T__ref_mem_isnull, /* 'isnull' */ + H5T__ref_mem_setnull, /* 'setnull' */ + H5T__ref_mem_getsize, /* 'getsize' */ + H5T__ref_mem_read, /* 'read' */ + H5T__ref_mem_write /* 'write' */ +}; + +static const H5T_ref_class_t H5T_ref_disk_g = { + H5T__ref_disk_isnull, /* 'isnull' */ + H5T__ref_disk_setnull, /* 'setnull' */ + H5T__ref_disk_getsize, /* 'getsize' */ + H5T__ref_disk_read, /* 'read' */ + H5T__ref_disk_write /* 'write' */ +}; + +static const H5T_ref_class_t H5T_ref_obj_disk_g = { + H5T__ref_obj_disk_isnull, /* 'isnull' */ + NULL, /* 'setnull' */ + H5T__ref_obj_disk_getsize, /* 'getsize' */ + H5T__ref_obj_disk_read, /* 'read' */ + NULL /* 'write' */ +}; + +static const H5T_ref_class_t H5T_ref_dsetreg_disk_g = { + H5T__ref_dsetreg_disk_isnull, /* 'isnull' */ + NULL, /* 'setnull' */ + H5T__ref_dsetreg_disk_getsize, /* 'getsize' */ + H5T__ref_dsetreg_disk_read, /* 'read' */ + NULL /* 'write' */ +}; + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_set_loc + * + * Purpose: Sets the location of a reference datatype to be either on disk + * or in memory + * + * Return: + * One of two values on success: + * TRUE - If the location of any reference types changed + * FALSE - If the location of any reference types is the same + * Negative value is returned on failure + * + *------------------------------------------------------------------------- + */ +htri_t +H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) +{ + htri_t ret_value = FALSE; /* Indicate success, but no location change */ + + FUNC_ENTER_PACKAGE + + HDassert(dt); + /* f is NULL when loc == H5T_LOC_MEMORY */ + HDassert(loc >= H5T_LOC_BADLOC && loc < H5T_LOC_MAXLOC); + + /* Only change the location if it's different */ + if(loc == dt->shared->u.atomic.u.r.loc && file == dt->shared->u.atomic.u.r.file) + HGOTO_DONE(FALSE) + + switch(loc) { + case H5T_LOC_MEMORY: /* Memory based reference datatype */ + HDassert(NULL == file); + + /* Mark this type as being stored in memory */ + dt->shared->u.atomic.u.r.loc = H5T_LOC_MEMORY; + + /* Reset file ID (since this reference is in memory) */ + dt->shared->u.atomic.u.r.file = file; /* file is NULL */ + + if(dt->shared->u.atomic.u.r.opaque) { + /* Size in memory, disk size is different */ + dt->shared->size = H5T_REF_MEM_SIZE; + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Set up the function pointers to access the reference in memory */ + dt->shared->u.atomic.u.r.cls = &H5T_ref_mem_g; + } /* end if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT1) { + /* Size in memory, disk size is different */ + dt->shared->size = H5T_REF_OBJ_MEM_SIZE; + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Unused for now */ + dt->shared->u.atomic.u.r.cls = NULL; + } /* end else-if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { + /* Size in memory, disk size is different */ + dt->shared->size = H5T_REF_DSETREG_MEM_SIZE; + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Unused for now */ + dt->shared->u.atomic.u.r.cls = NULL; + } /* end else-if */ + else + HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "invalid location") + break; + + case H5T_LOC_DISK: /* Disk based reference datatype */ + HDassert(file); + + /* Mark this type as being stored on disk */ + dt->shared->u.atomic.u.r.loc = H5T_LOC_DISK; + + /* Set file pointer (since this reference is on disk) */ + dt->shared->u.atomic.u.r.file = file; + + if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT1) { + H5F_t *f; + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (f = (H5F_t *)H5VL_object_data(file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + /* Size on disk, memory size is different */ + dt->shared->size = H5T_REF_OBJ_DISK_SIZE(f); + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Set up the function pointers to access the reference in memory */ + dt->shared->u.atomic.u.r.cls = &H5T_ref_obj_disk_g; + } /* end if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { + H5F_t *f; + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (f = (H5F_t *)H5VL_object_data(file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + /* Size on disk, memory size is different */ + dt->shared->size = H5T_REF_DSETREG_DISK_SIZE(f); + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Set up the function pointers to access the reference in memory */ + dt->shared->u.atomic.u.r.cls = &H5T_ref_dsetreg_disk_g; + } /* end else-if */ + else { + H5VL_file_cont_info_t cont_info = {H5VL_CONTAINER_INFO_VERSION, 0, 0, 0}; + size_t ref_encode_size; + H5R_ref_priv_t fixed_ref; + + /* Get container info */ + if(H5VL_file_get(file, H5VL_FILE_GET_CONT_INFO, H5P_DATASET_XFER_DEFAULT, H5_REQUEST_NULL, &cont_info) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get container info") + + /* Retrieve min encode size (when references have no vlen part) */ + HDmemset(&fixed_ref, 0, sizeof(fixed_ref)); + fixed_ref.type = (int8_t)H5R_OBJECT2; + fixed_ref.token_size = (uint8_t)cont_info.token_size; + if(H5R__encode(NULL, &fixed_ref, NULL, &ref_encode_size, 0) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't get encode size") + + /* Size on disk, memory size is different */ + dt->shared->size = MAX(H5_SIZEOF_UINT32_T + + H5R_ENCODE_HEADER_SIZE + cont_info.blob_id_size, + ref_encode_size); + dt->shared->u.atomic.prec = 8 * dt->shared->size; + + /* Set up the function pointers to access the information on + * disk. Region and attribute references are stored identically + * on disk, so use the same functions. + */ + dt->shared->u.atomic.u.r.cls = &H5T_ref_disk_g; + } + break; + + case H5T_LOC_BADLOC: + /* Allow undefined location. In H5Odtype.c, H5O_dtype_decode sets undefined + * location for reference type and leaves it for the caller to decide. + */ + dt->shared->u.atomic.u.r.loc = H5T_LOC_BADLOC; + + /* Reset file pointer */ + dt->shared->u.atomic.u.r.file = NULL; + + /* Reset the function pointers */ + dt->shared->u.atomic.u.r.cls = NULL; + + break; + + case H5T_LOC_MAXLOC: /* MAXLOC is invalid */ + default: + HGOTO_ERROR(H5E_DATATYPE, H5E_BADRANGE, FAIL, "invalid reference datatype location") + } /* end switch */ + + /* Indicate that the location changed */ + ret_value = TRUE; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_set_loc() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_mem_isnull + * + * Purpose: Check if it's a NULL / uninitialized reference. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_mem_isnull(const H5VL_object_t H5_ATTR_UNUSED *src_file, + const void *src_buf, hbool_t *isnull) +{ + const unsigned char zeros[H5T_REF_MEM_SIZE] = { 0 }; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC_NOERR + + /* Check parameters */ + HDassert(src_buf); + HDassert(isnull); + + *isnull = (0 == HDmemcmp(src_buf, zeros, H5T_REF_MEM_SIZE)) ? TRUE : FALSE; + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_mem_isnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_mem_setnull + * + * Purpose: Set a reference as NULL / uninitialized. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_mem_setnull(H5VL_object_t H5_ATTR_UNUSED *dst_file, void *dst_buf, + H5_ATTR_UNUSED void *bg_buf) +{ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC_NOERR + + HDmemset(dst_buf, 0, H5T_REF_MEM_SIZE); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_mem_setnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_mem_getsize + * + * Purpose: Retrieves the size of a memory based reference. + * + * Return: Non-negative on success/zero on failure + * + *------------------------------------------------------------------------- + */ +static size_t +H5T__ref_mem_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, + size_t H5_ATTR_UNUSED src_size, H5VL_object_t *dst_file, hbool_t *dst_copy) +{ + H5VL_object_t *vol_obj; /* VOL object for src ref's location */ + const H5R_ref_priv_t *src_ref = (const H5R_ref_priv_t *)src_buf; + hbool_t files_equal = FALSE; /* Whether src & dst references are in same file */ + char *file_name_buf_dyn = NULL; /* Pointer to dynamically allocated buffer for file name, if static buffer is too small */ + unsigned flags = 0; /* References flags */ + size_t ret_value = 0; /* Return value */ + + FUNC_ENTER_STATIC + + /* Sanity check */ + HDassert(src_buf); + HDassert(src_size == H5T_REF_MEM_SIZE); + + /* Retrieve VOL object */ + if(NULL == (vol_obj = H5VL_vol_object(src_ref->loc_id))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid location identifier") + + /* Set external flag if referenced file is not destination file */ + if(H5VL_file_is_same(vol_obj, dst_file, &files_equal) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOMPARE, 0, "can't check if files are equal") + flags |= !files_equal ? H5R_IS_EXTERNAL : 0; + + /* Force re-calculating encoding size if any flags are set */ + if(flags || !src_ref->encode_size) { + char file_name_buf_static[256]; /* File name */ + ssize_t file_name_len; /* Size of file name buffer */ + + /* Pass the correct encoding version for the selection depending on the + * file libver bounds, this is later retrieved in H5S hyper encode */ + if(src_ref->type == (int8_t)H5R_DATASET_REGION2) { + hbool_t is_native = FALSE; /* Whether the dest. file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(dst_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Set the file's libver bounds if using the native VOL connector */ + if(is_native) { + H5F_t *dst_f; /* Native file struct */ + + if(NULL == (dst_f = (H5F_t *)H5VL_object_data(dst_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + H5CX_set_libver_bounds(dst_f); + } /* end if */ + else + H5CX_set_libver_bounds(NULL); + } /* end if */ + + /* Get file name */ + if(H5VL_file_get(vol_obj, H5VL_FILE_GET_NAME, H5P_DATASET_XFER_DEFAULT, NULL, H5I_FILE, sizeof(file_name_buf_static), file_name_buf_static, &file_name_len) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't get file name") + if(file_name_len >= (ssize_t)sizeof(file_name_buf_static)) { + if(NULL == (file_name_buf_dyn = (char *)H5MM_malloc((size_t)file_name_len + 1))) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, 0, "can't allocate space for file name") + if(H5VL_file_get(vol_obj, H5VL_FILE_GET_NAME, H5P_DATASET_XFER_DEFAULT, NULL, H5I_FILE, (size_t)file_name_len + 1, file_name_buf_dyn, &file_name_len) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't get file name") + } /* end if */ + + /* Determine encoding size */ + if(H5R__encode(file_name_buf_dyn ? file_name_buf_dyn : file_name_buf_static, src_ref, NULL, &ret_value, flags) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTENCODE, 0, "unable to determine encoding size") + } /* end if */ + else { + /* Can do a direct copy and skip blob decoding */ + if(src_ref->type == (int8_t)H5R_OBJECT2) + *dst_copy = TRUE; + + /* Get cached encoding size */ + ret_value = src_ref->encode_size; + } /* end else */ + +done: + H5MM_xfree(file_name_buf_dyn); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_mem_getsize() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_mem_read + * + * Purpose: "Reads" the memory based reference into a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_mem_read(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, + size_t H5_ATTR_UNUSED src_size, H5VL_object_t *dst_file, void *dst_buf, + size_t dst_size) +{ + H5VL_object_t *vol_obj; /* VOL object for src ref's location */ + const H5R_ref_priv_t *src_ref = (const H5R_ref_priv_t *)src_buf; + hbool_t files_equal = FALSE; /* Whether src & dst references are in same file */ + char file_name_buf_static[256]; /* File name */ + char *file_name_buf_dyn = NULL; /* Pointer to dynamically allocated buffer for file name, if static buffer is too small */ + ssize_t file_name_len; /* Size of file name buffer */ + unsigned flags = 0; /* References flags */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_STATIC + + /* Sanity check */ + HDassert(src_buf); + HDassert(src_size == H5T_REF_MEM_SIZE); + HDassert(dst_file); + HDassert(dst_buf); + HDassert(dst_size); + + /* Retrieve VOL object */ + if(NULL == (vol_obj = H5VL_vol_object(src_ref->loc_id))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid location identifier") + + /* Set external flag if referenced file is not destination file */ + if(H5VL_file_is_same(vol_obj, dst_file, &files_equal) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOMPARE, FAIL, "can't check if files are equal") + flags |= !files_equal ? H5R_IS_EXTERNAL : 0; + + /* Pass the correct encoding version for the selection depending on the + * file libver bounds, this is later retrieved in H5S hyper encode */ + if(src_ref->type == (int8_t)H5R_DATASET_REGION2) { + hbool_t is_native = FALSE; /* Whether the dest. file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(dst_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Set the file's libver bounds if using the native VOL connector */ + if(is_native) { + H5F_t *dst_f; + + if(NULL == (dst_f = (H5F_t *)H5VL_object_data(dst_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + H5CX_set_libver_bounds(dst_f); + } /* end if */ + else + H5CX_set_libver_bounds(NULL); + } /* end if */ + + /* Get file name */ + if(H5VL_file_get(vol_obj, H5VL_FILE_GET_NAME, H5P_DATASET_XFER_DEFAULT, NULL, H5I_FILE, sizeof(file_name_buf_static), file_name_buf_static, &file_name_len) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't get file name") + if(file_name_len >= (ssize_t)sizeof(file_name_buf_static)) { + if(NULL == (file_name_buf_dyn = (char *)H5MM_malloc((size_t)file_name_len + 1))) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, 0, "can't allocate space for file name") + if(H5VL_file_get(vol_obj, H5VL_FILE_GET_NAME, H5P_DATASET_XFER_DEFAULT, NULL, H5I_FILE, (size_t)file_name_len + 1, file_name_buf_dyn, &file_name_len) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't get file name") + } /* end if */ + + /* Encode reference */ + if(H5R__encode(file_name_buf_dyn ? file_name_buf_dyn : file_name_buf_static, src_ref, (unsigned char *)dst_buf, &dst_size, flags) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTENCODE, FAIL, "Cannot encode reference") + +done: + H5MM_xfree(file_name_buf_dyn); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_mem_read() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_mem_write + * + * Purpose: "Writes" the memory reference from a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size, + H5R_type_t src_type, H5VL_object_t H5_ATTR_UNUSED *dst_file, void *dst_buf, + size_t dst_size, void H5_ATTR_UNUSED *bg_buf) +{ + H5F_t *src_f; + hid_t file_id = H5I_INVALID_HID; + H5R_ref_priv_t *dst_ref = (H5R_ref_priv_t *)dst_buf; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + /* Sanity check */ + HDassert(src_file); + HDassert(src_buf); + HDassert(src_size); + HDassert(dst_buf); + HDassert(dst_size == H5T_REF_MEM_SIZE); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + /* Make sure reference buffer is correctly initialized */ + HDmemset(dst_buf, 0, dst_size); + + switch(src_type) { + case H5R_OBJECT1: + { + size_t token_size = H5F_SIZEOF_ADDR(src_f); + + if(H5R__create_object((const H5O_token_t *)src_buf, token_size, dst_ref) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create object reference") + } + break; + + case H5R_DATASET_REGION1: + { + const struct H5Tref_dsetreg *src_reg = (const struct H5Tref_dsetreg *)src_buf; + size_t token_size = H5F_SIZEOF_ADDR(src_f); + + if(H5R__create_region(&src_reg->token, token_size, src_reg->space, dst_ref) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create region reference") + + /* create_region creates its internal copy of the space */ + if(H5S_close(src_reg->space) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTFREE, FAIL, "Cannot close dataspace") + } + break; + + case H5R_DATASET_REGION2: + /* Pass the correct encoding version for the selection depending on the + * file libver bounds, this is later retrieved in H5S hyper decode */ + H5CX_set_libver_bounds(src_f); + H5_ATTR_FALLTHROUGH + case H5R_OBJECT2: + case H5R_ATTR: + /* Decode reference */ + if(H5R__decode((const unsigned char *)src_buf, &src_size, dst_ref) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "Cannot decode reference") + break; + + case H5R_BADTYPE: + case H5R_MAXTYPE: + default: + HDassert("unknown reference type" && 0); + HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)") + } /* end switch */ + + /* If no filename set, this is not an external reference */ + if(NULL == H5R_REF_FILENAME(dst_ref)) { + /* TODO temporary hack to retrieve file object */ + if((file_id = H5F_get_file_id(src_file, H5I_FILE, FALSE)) < 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object") + + /* Attach loc ID to reference and hold reference to it, this is a + * user exposed reference so set app_ref to TRUE. */ + if(H5R__set_loc_id(dst_ref, file_id, TRUE, TRUE) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTSET, FAIL, "unable to attach location id to reference") + } /* end if */ + +done: + if((file_id != H5I_INVALID_HID) && (H5I_dec_ref(file_id) < 0)) + HDONE_ERROR(H5E_REFERENCE, H5E_CANTDEC, FAIL, "unable to decrement refcount on location id") + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_mem_write() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_disk_isnull + * + * Purpose: Check if it's a NULL / uninitialized reference. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, + hbool_t *isnull) +{ + const uint8_t *p = (const uint8_t *)src_buf; + H5R_type_t ref_type; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + /* Check parameters */ + HDassert(src_file); + HDassert(src_buf); + HDassert(isnull); + + /* Try to check encoded reference type */ + ref_type = (H5R_type_t)*p++; + if(ref_type) { + /* This is a valid reference */ + *isnull = FALSE; + } else { + /* Skip the size / header */ + p = (const uint8_t *)src_buf + H5R_ENCODE_HEADER_SIZE + H5_SIZEOF_UINT32_T; + + /* Check if blob ID is "nil" */ + if(H5VL_blob_specific(src_file, (void *)p, H5VL_BLOB_ISNULL, isnull) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to check if a blob ID is 'nil'") + } + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_disk_isnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_disk_setnull + * + * Purpose: Set a reference as NULL / uninitialized. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_disk_setnull(H5VL_object_t *dst_file, void *dst_buf, void *bg_buf) +{ + uint8_t *q = (uint8_t *)dst_buf; + uint8_t *p_bg = (uint8_t *)bg_buf; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + HDassert(dst_file); + HDassert(dst_buf); + + /* TODO Should get rid of bg stuff */ + if(p_bg) { + /* Skip the size / header */ + p_bg += (H5_SIZEOF_UINT32_T + H5R_ENCODE_HEADER_SIZE); + + /* Remove blob for old data */ + if(H5VL_blob_specific(dst_file, (void *)p_bg, H5VL_BLOB_DELETE) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREMOVE, FAIL, "unable to delete blob") + } /* end if */ + + /* Copy header manually so that it does not get encoded into the blob */ + HDmemset(q, 0, H5R_ENCODE_HEADER_SIZE); + q += H5R_ENCODE_HEADER_SIZE; + + /* Set the size */ + UINT32ENCODE(q, 0); + + /* Set blob ID to "nil" */ + if(H5VL_blob_specific(dst_file, q, H5VL_BLOB_SETNULL) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "unable to set a blob ID to 'nil'") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_disk_setnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_disk_getsize + * + * Purpose: Retrieves the length of a disk based reference. + * + * Return: Non-negative value (cannot fail) + * + *------------------------------------------------------------------------- + */ +static size_t +H5T__ref_disk_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, + size_t src_size, H5VL_object_t H5_ATTR_UNUSED *dst_file, hbool_t *dst_copy) +{ + const uint8_t *p = (const uint8_t *)src_buf; + unsigned flags; + H5R_type_t ref_type; + size_t ret_value = 0; + + FUNC_ENTER_STATIC + + HDassert(src_buf); + + /* Set reference type */ + ref_type = (H5R_type_t)*p++; + if(ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, 0, "invalid reference type") + + /* Set flags */ + flags = (unsigned)*p++; + + if(!(flags & H5R_IS_EXTERNAL) && (ref_type == H5R_OBJECT2)) { + /* Can do a direct copy and skip blob decoding */ + *dst_copy = TRUE; + + ret_value = src_size; + } /* end if */ + else { + /* Retrieve encoded data size */ + UINT32DECODE(p, ret_value); + + /* Add size of the header */ + ret_value += H5R_ENCODE_HEADER_SIZE; + } /* end else */ + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_disk_getsize() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_disk_read + * + * Purpose: Reads the disk based reference into a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t H5_ATTR_NDEBUG_UNUSED src_size, + H5VL_object_t H5_ATTR_UNUSED *dst_file, void *dst_buf, size_t dst_size) +{ + const uint8_t *p = (const uint8_t *)src_buf; + uint8_t *q = (uint8_t *)dst_buf; + size_t blob_size = dst_size; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + HDassert(src_file); + HDassert(src_buf); + HDassert(dst_buf); + HDassert(dst_size); + + /* Copy header manually */ + H5MM_memcpy(q, p, H5R_ENCODE_HEADER_SIZE); + p += H5R_ENCODE_HEADER_SIZE; + q += H5R_ENCODE_HEADER_SIZE; + blob_size -= H5R_ENCODE_HEADER_SIZE; + + /* Skip the size */ + p += H5_SIZEOF_UINT32_T; + HDassert(src_size > (H5R_ENCODE_HEADER_SIZE + H5_SIZEOF_UINT32_T)); + + /* Retrieve blob */ + if(H5VL_blob_get(src_file, p, q, blob_size, NULL) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get blob") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_disk_read() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_disk_write + * + * Purpose: Writes the disk based reference from a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_disk_write(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, + size_t src_size, H5R_type_t H5_ATTR_UNUSED src_type, H5VL_object_t *dst_file, + void *dst_buf, size_t dst_size, void *bg_buf) +{ + const uint8_t *p = (const uint8_t *)src_buf; + uint8_t *q = (uint8_t *)dst_buf; + size_t buf_size_left = dst_size; + uint8_t *p_bg = (uint8_t *)bg_buf; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + HDassert(src_buf); + HDassert(src_size); + HDassert(dst_file); + HDassert(dst_buf); + + /* TODO Should get rid of bg stuff */ + if(p_bg) { + size_t p_buf_size_left = dst_size; + + /* Skip the size / header */ + p_bg += (H5_SIZEOF_UINT32_T + H5R_ENCODE_HEADER_SIZE); + HDassert(p_buf_size_left > (H5_SIZEOF_UINT32_T + H5R_ENCODE_HEADER_SIZE)); + p_buf_size_left -= (H5_SIZEOF_UINT32_T + H5R_ENCODE_HEADER_SIZE); + + /* Remove blob for old data */ + if(H5VL_blob_specific(dst_file, (void *)p_bg, H5VL_BLOB_DELETE) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTREMOVE, FAIL, "unable to delete blob") + } /* end if */ + + /* Copy header manually so that it does not get encoded into the blob */ + H5MM_memcpy(q, p, H5R_ENCODE_HEADER_SIZE); + p += H5R_ENCODE_HEADER_SIZE; + q += H5R_ENCODE_HEADER_SIZE; + src_size -= H5R_ENCODE_HEADER_SIZE; + buf_size_left -= H5_SIZEOF_UINT32_T; + + /* Set the size */ + UINT32ENCODE(q, src_size); + HDassert(buf_size_left > H5_SIZEOF_UINT32_T); + buf_size_left -= H5_SIZEOF_UINT32_T; + + /* Store blob */ + if(H5VL_blob_put(dst_file, p, src_size, q, NULL) < 0) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTSET, FAIL, "unable to put blob") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_disk_write() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_obj_disk_isnull + * + * Purpose: Check if it's a NULL / uninitialized reference. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t H5T__ref_obj_disk_isnull(const H5VL_object_t *src_file, + const void *src_buf, hbool_t *isnull) +{ + H5F_t *src_f; + const uint8_t *p = (const uint8_t *)src_buf; + haddr_t addr; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + /* Check parameters */ + HDassert(src_file); + HDassert(src_buf); + HDassert(isnull); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + /* Get the object address */ + H5F_addr_decode(src_f, &p, &addr); + + /* Check if heap address is 'nil' */ + *isnull = (addr == 0) ? TRUE : FALSE; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_obj_disk_isnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_obj_disk_getsize + * + * Purpose: Retrieves the length of a disk based reference. + * + * Return: Non-negative value (cannot fail) + * + *------------------------------------------------------------------------- + */ +static size_t +H5T__ref_obj_disk_getsize(H5VL_object_t *src_file, const void H5_ATTR_UNUSED *src_buf, + size_t H5_ATTR_UNUSED src_size, H5VL_object_t H5_ATTR_UNUSED *dst_file, + hbool_t H5_ATTR_UNUSED *dst_copy) +{ + H5F_t *src_f; + size_t ret_value = 0; + + FUNC_ENTER_STATIC + + HDassert(src_file); + HDassert(src_buf); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + + HDassert(src_size == H5T_REF_OBJ_DISK_SIZE(src_f)); + + ret_value = H5T_REF_OBJ_DISK_SIZE(src_f); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_obj_disk_getsize() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_obj_disk_read + * + * Purpose: Reads the disk based reference into a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_obj_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, + H5VL_object_t H5_ATTR_UNUSED *dst_file, void *dst_buf, size_t H5_ATTR_UNUSED dst_size) +{ + H5F_t *src_f; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + HDassert(src_file); + HDassert(src_buf); + HDassert(dst_buf); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + HDassert(src_size == H5T_REF_OBJ_DISK_SIZE(src_f)); + HDassert(dst_size == H5F_SIZEOF_ADDR(src_f)); + + /* Get object address */ + if(H5R__decode_token_obj_compat((const unsigned char *)src_buf, &src_size, + (H5O_token_t *)dst_buf, H5F_SIZEOF_ADDR(src_f)) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "unable to get object address") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_obj_disk_read() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_dsetreg_disk_isnull + * + * Purpose: Check if it's a NULL / uninitialized reference. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_dsetreg_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, + hbool_t *isnull) +{ + H5F_t *src_f; + const uint8_t *p = (const uint8_t *)src_buf; + haddr_t addr; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + /* Check parameters */ + HDassert(src_file); + HDassert(src_buf); + HDassert(isnull); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + /* Get the heap address */ + H5F_addr_decode(src_f, &p, &addr); + + /* Check if heap address is 'nil' */ + *isnull = (addr == 0) ? TRUE : FALSE; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_dsetreg_disk_isnull() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_dsetreg_disk_getsize + * + * Purpose: Retrieves the length of a disk based reference. + * + * Return: Non-negative value (cannot fail) + * + *------------------------------------------------------------------------- + */ +static size_t +H5T__ref_dsetreg_disk_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, + const void H5_ATTR_UNUSED *src_buf, size_t H5_ATTR_UNUSED src_size, + H5VL_object_t H5_ATTR_UNUSED *dst_file, hbool_t H5_ATTR_UNUSED *dst_copy) +{ + size_t ret_value = sizeof(struct H5Tref_dsetreg); + +#ifndef NDEBUG + FUNC_ENTER_STATIC +#else + FUNC_ENTER_STATIC_NOERR +#endif + + HDassert(src_buf); + +#ifndef NDEBUG + { + H5F_t *src_f; + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + + HDassert(src_size == H5T_REF_DSETREG_DISK_SIZE(src_f)); + } +#endif /* NDEBUG */ + +#ifndef NDEBUG +done: +#endif + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_dsetreg_disk_getsize() */ + + +/*------------------------------------------------------------------------- + * Function: H5T__ref_dsetreg_disk_read + * + * Purpose: Reads the disk based reference into a buffer + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5T__ref_dsetreg_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_size, + H5VL_object_t H5_ATTR_UNUSED *dst_file, void *dst_buf, size_t H5_ATTR_UNUSED dst_size) +{ + H5F_t *src_f; + struct H5Tref_dsetreg *dst_reg = (struct H5Tref_dsetreg *)dst_buf; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_STATIC + + HDassert(src_file); + HDassert(src_buf); + HDassert(dst_buf); + HDassert(dst_size == sizeof(struct H5Tref_dsetreg)); + +#ifndef NDEBUG + { + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); + } +#endif /* NDEBUG */ + + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid VOL object") + + HDassert(src_size == H5T_REF_DSETREG_DISK_SIZE(src_f)); + + /* Retrieve object address and space */ + if(H5R__decode_token_region_compat(src_f, (const unsigned char *)src_buf, + &src_size, &dst_reg->token, H5F_SIZEOF_ADDR(src_f), &dst_reg->space) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "unable to get object address") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T__ref_dsetreg_disk_read() */ + + +/*------------------------------------------------------------------------- + * Function: H5T_ref_reclaim + * + * Purpose: Internal routine to free reference datatypes + * + * Return: Non-negative on success / Negative on failure + * + *------------------------------------------------------------------------- + */ +herr_t +H5T_ref_reclaim(void *elem, const H5T_t *dt) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT + + /* Sanity checks */ + HDassert(elem); + HDassert(dt && (dt->shared->type == H5T_REFERENCE)); + + if(dt->shared->u.atomic.u.r.opaque && H5R__destroy((H5R_ref_priv_t *)elem) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTFREE, FAIL, "cannot free reference") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5T_ref_reclaim() */ + |