/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by the Board of Trustees of the University of Illinois. * * 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 files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * This file contains macros & information for file access */ #ifndef _H5Fprivate_H #define _H5Fprivate_H /* Include package's public header */ #include "H5Fpublic.h" /* Public headers needed by this file */ #include "H5FDpublic.h" /* File drivers */ /* Private headers needed by this file */ /****************************/ /* Library Private Typedefs */ /****************************/ /* Main file structure */ typedef struct H5F_t H5F_t; /*===----------------------------------------------------------------------=== * Flush Flags *===----------------------------------------------------------------------=== * * Flags passed into the flush routines which indicate what type of * flush we want to do. They can be ORed together. */ #define H5F_FLUSH_NONE (0U) /* No flags specified */ #define H5F_FLUSH_INVALIDATE (1U << 0) /* Invalidate cached data */ #define H5F_FLUSH_ALLOC_ONLY (1U << 1) /* Allocate space for user and super blocks */ #define H5F_FLUSH_CLOSING (1U << 2) /* Closing the file */ #define H5F_FLUSH_CLEAR_ONLY (1U << 3) /* Don't write, just clear dirty flags */ /* * Encode and decode macros for file meta-data. * Currently, all file meta-data is little-endian. */ # define INT16ENCODE(p, i) { \ *(p) = (uint8_t)( (unsigned)(i) & 0xff); (p)++; \ *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++; \ } # define UINT16ENCODE(p, i) { \ *(p) = (uint8_t)( (i) & 0xff); (p)++; \ *(p) = (uint8_t)(((unsigned)(i) >> 8) & 0xff); (p)++; \ } # define INT32ENCODE(p, i) { \ *(p) = (uint8_t)( (uint32_t)(i) & 0xff); (p)++; \ *(p) = (uint8_t)(((uint32_t)(i) >> 8) & 0xff); (p)++; \ *(p) = (uint8_t)(((uint32_t)(i) >> 16) & 0xff); (p)++; \ *(p) = (uint8_t)(((uint32_t)(i) >> 24) & 0xff); (p)++; \ } # define UINT32ENCODE(p, i) { \ *(p) = (uint8_t)( (i) & 0xff); (p)++; \ *(p) = (uint8_t)(((i) >> 8) & 0xff); (p)++; \ *(p) = (uint8_t)(((i) >> 16) & 0xff); (p)++; \ *(p) = (uint8_t)(((i) >> 24) & 0xff); (p)++; \ } # define INT64ENCODE(p, n) { \ int64_t _n = (n); \ size_t _i; \ uint8_t *_p = (uint8_t*)(p); \ for (_i=0; _i>=8) { \ *_p++ = (uint8_t)(_n & 0xff); \ } \ for (/*void*/; _i<8; _i++) { \ *_p++ = (n)<0 ? 0xff : 0; \ } \ (p) = (uint8_t*)(p)+8; \ } # define UINT64ENCODE(p, n) { \ uint64_t _n = (n); \ size_t _i; \ uint8_t *_p = (uint8_t*)(p); \ for (_i=0; _i>=8) { \ *_p++ = (uint8_t)(_n & 0xff); \ } \ for (/*void*/; _i<8; _i++) { \ *_p++ = 0; \ } \ (p) = (uint8_t*)(p)+8; \ } /* DECODE converts little endian bytes pointed by p to integer values and store * it in i. For signed values, need to do sign-extension when converting * the last byte which carries the sign bit. * The macros does not require i be of a certain byte sizes. It just requires * i be big enough to hold the intended value range. E.g. INT16DECODE works * correctly even if i is actually a 64bit int like in a Cray. */ # define INT16DECODE(p, i) { \ (i) = (int16_t)((*(p) & 0xff)); (p)++; \ (i) |= (int16_t)(((*(p) & 0xff) << 8) | \ ((*(p) & 0x80) ? ~0xffff : 0x0)); (p)++; \ } # define UINT16DECODE(p, i) { \ (i) = (uint16_t) (*(p) & 0xff); (p)++; \ (i) |= (uint16_t)((*(p) & 0xff) << 8); (p)++; \ } # define INT32DECODE(p, i) { \ (i) = ( *(p) & 0xff); (p)++; \ (i) |= ((int32_t)(*(p) & 0xff) << 8); (p)++; \ (i) |= ((int32_t)(*(p) & 0xff) << 16); (p)++; \ (i) |= ((int32_t)(((*(p) & 0xff) << 24) | \ ((*(p) & 0x80) ? ~0xffffffff : 0x0))); (p)++; \ } # define UINT32DECODE(p, i) { \ (i) = (uint32_t)(*(p) & 0xff); (p)++; \ (i) |= ((uint32_t)(*(p) & 0xff) << 8); (p)++; \ (i) |= ((uint32_t)(*(p) & 0xff) << 16); (p)++; \ (i) |= ((uint32_t)(*(p) & 0xff) << 24); (p)++; \ } # define INT64DECODE(p, n) { \ /* WE DON'T CHECK FOR OVERFLOW! */ \ size_t _i; \ n = 0; \ (p) += 8; \ for (_i=0; _i(Y)) #define H5F_addr_ge(X,Y) ((X)!=HADDR_UNDEF && \ (Y)!=HADDR_UNDEF && \ (X)>=(Y)) #define H5F_addr_cmp(X,Y) (H5F_addr_eq(X,Y)?0: \ (H5F_addr_lt(X, Y)?-1:1)) #define H5F_addr_pow2(N) ((haddr_t)1<<(N)) #define H5F_addr_overlap(O1,L1,O2,L2) ((O1O2) || \ (O1>=O2 && O1<(O2+L2))) /* If the module using this macro is allowed access to the private variables, access them directly */ #ifdef H5F_PACKAGE /* size of size_t and off_t as they exist on disk */ #define H5F_SIZEOF_ADDR(F) ((F)->shared->sizeof_addr) #define H5F_SIZEOF_SIZE(F) ((F)->shared->sizeof_size) /* Size of symbol table leafs */ #define H5F_SYM_LEAF_K(F) ((F)->shared->sym_leaf_k) /* B-tree key value size */ #define H5F_KVALUE(F,T) ((F)->shared->btree_k[(T)->id]) /* Raw data cache values */ #define H5F_RDCC_NELMTS(F) ((F)->shared->rdcc_nelmts) #define H5F_RDCC_NBYTES(F) ((F)->shared->rdcc_nbytes) #define H5F_RDCC_W0(F) ((F)->shared->rdcc_w0) /* Check for file driver feature enabled */ #define H5F_HAS_FEATURE(F,FL) ((F)->shared->lf->feature_flags&(FL)) /* B-tree node raw page */ #define H5F_GRP_BTREE_SHARED(F) ((F)->shared->grp_btree_shared) /* Base address of file */ #define H5F_BASE_ADDR(F) ((F)->shared->base_addr) #else /* H5F_PACKAGE */ #define H5F_SIZEOF_ADDR(F) (H5F_sizeof_addr(F)) #define H5F_SIZEOF_SIZE(F) (H5F_sizeof_size(F)) #define H5F_SYM_LEAF_K(F) (H5F_sym_leaf_k(F)) #define H5F_KVALUE(F,T) (H5F_Kvalue(F,T)) #define H5F_RDCC_NELMTS(F) (H5F_rdcc_nelmts(F)) #define H5F_RDCC_NBYTES(F) (H5F_rdcc_nbytes(F)) #define H5F_RDCC_W0(F) (H5F_rdcc_w0(F)) #define H5F_HAS_FEATURE(F,FL) (H5F_has_feature(F,FL)) #define H5F_GRP_BTREE_SHARED(F) (H5F_grp_btree_shared(F)) #define H5F_BASE_ADDR(F) (H5F_get_base_addr(F)) #endif /* H5F_PACKAGE */ /* Macros to encode/decode offset/length's for storing in the file */ #ifdef NOT_YET #define H5F_ENCODE_OFFSET(f,p,o) (H5F_SIZEOF_ADDR(f)==4 ? UINT32ENCODE(p,o) \ : H5F_SIZEOF_ADDR(f)==8 ? UINT64ENCODE(p,o) \ : H5F_SIZEOF_ADDR(f)==2 ? UINT16ENCODE(p,o) \ : H5FPencode_unusual_offset(f,&(p),(uint8_t*)&(o))) #else /* NOT_YET */ #define H5F_ENCODE_OFFSET(f,p,o) switch(H5F_SIZEOF_ADDR(f)) { \ case 4: UINT32ENCODE(p,o); break; \ case 8: UINT64ENCODE(p,o); break; \ case 2: UINT16ENCODE(p,o); break; \ } #endif /* NOT_YET */ #define H5F_DECODE_OFFSET(f,p,o) switch (H5F_SIZEOF_ADDR (f)) { \ case 4: UINT32DECODE (p, o); break; \ case 8: UINT64DECODE (p, o); break; \ case 2: UINT16DECODE (p, o); break; \ } #define H5F_ENCODE_LENGTH(f,p,l) switch(H5F_SIZEOF_SIZE(f)) { \ case 4: UINT32ENCODE(p,l); break; \ case 8: UINT64ENCODE(p,l); break; \ case 2: UINT16ENCODE(p,l); break; \ } #define H5F_DECODE_LENGTH(f,p,l) switch(H5F_SIZEOF_SIZE(f)) { \ case 4: UINT32DECODE(p,l); break; \ case 8: UINT64DECODE(p,l); break; \ case 2: UINT16DECODE(p,l); break; \ } /* * Macros that check for overflows. These are somewhat dangerous to fiddle * with. */ #if (H5_SIZEOF_SIZE_T >= H5_SIZEOF_OFF_T) # define H5F_OVERFLOW_SIZET2OFFT(X) \ ((size_t)(X)>=(size_t)((size_t)1<<(8*sizeof(off_t)-1))) #else # define H5F_OVERFLOW_SIZET2OFFT(X) 0 #endif #if (H5_SIZEOF_HSIZE_T >= H5_SIZEOF_OFF_T) # define H5F_OVERFLOW_HSIZET2OFFT(X) \ ((hsize_t)(X)>=(hsize_t)((hsize_t)1<<(8*sizeof(off_t)-1))) #else # define H5F_OVERFLOW_HSIZET2OFFT(X) 0 #endif /* ========= File Creation properties ============ */ /* Definitions for the size of the file user block in bytes */ #define H5F_CRT_USER_BLOCK_NAME "block_size" #define H5F_CRT_USER_BLOCK_SIZE sizeof(hsize_t) #define H5F_CRT_USER_BLOCK_DEF 0 /* Definitions for the 1/2 rank for symbol table leaf nodes */ #define H5F_CRT_SYM_LEAF_NAME "symbol_leaf" #define H5F_CRT_SYM_LEAF_SIZE sizeof(unsigned) #define H5F_CRT_SYM_LEAF_DEF 4 /* Definitions for the 1/2 rank for btree internal nodes */ #define H5F_CRT_BTREE_RANK_NAME "btree_rank" #define H5F_CRT_BTREE_RANK_SIZE sizeof(unsigned[H5B_NUM_BTREE_ID]) #define H5F_CRT_BTREE_RANK_DEF {HDF5_BTREE_SNODE_IK_DEF,HDF5_BTREE_ISTORE_IK_DEF} /* Definitions for byte number in an address */ #define H5F_CRT_ADDR_BYTE_NUM_NAME "addr_byte_num" #define H5F_CRT_ADDR_BYTE_NUM_SIZE sizeof(size_t) #define H5F_CRT_ADDR_BYTE_NUM_DEF sizeof(haddr_t) /* Definitions for byte number for object size */ #define H5F_CRT_OBJ_BYTE_NUM_NAME "obj_byte_num" #define H5F_CRT_OBJ_BYTE_NUM_SIZE sizeof(size_t) #define H5F_CRT_OBJ_BYTE_NUM_DEF sizeof(hsize_t) /* Definitions for version number of the superblock */ #define H5F_CRT_SUPER_VERS_NAME "super_version" #define H5F_CRT_SUPER_VERS_SIZE sizeof(unsigned) #define H5F_CRT_SUPER_VERS_DEF HDF5_SUPERBLOCK_VERSION_DEF /* Definitions for free-space version number */ #define H5F_CRT_FREESPACE_VERS_NAME "free_space_version" #define H5F_CRT_FREESPACE_VERS_SIZE sizeof(unsigned) #define H5F_CRT_FREESPACE_VERS_DEF HDF5_FREESPACE_VERSION /* Definitions for object directory version number */ #define H5F_CRT_OBJ_DIR_VERS_NAME "obj_dir_version" #define H5F_CRT_OBJ_DIR_VERS_SIZE sizeof(unsigned) #define H5F_CRT_OBJ_DIR_VERS_DEF HDF5_OBJECTDIR_VERSION /* Definitions for shared-header format version */ #define H5F_CRT_SHARE_HEAD_VERS_NAME "share_head_version" #define H5F_CRT_SHARE_HEAD_VERS_SIZE sizeof(unsigned) #define H5F_CRT_SHARE_HEAD_VERS_DEF HDF5_SHAREDHEADER_VERSION /* ========= File Access properties ============ */ /* Definitions for size of meta data cache(elements) */ #define H5F_ACS_META_CACHE_SIZE_NAME "mdc_nelmts" #define H5F_ACS_META_CACHE_SIZE_SIZE sizeof(int) #define H5F_ACS_META_CACHE_SIZE_DEF H5AC_NSLOTS /* Definitions for size of raw data chunk cache(elements) */ #define H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME "rdcc_nelmts" #define H5F_ACS_DATA_CACHE_ELMT_SIZE_SIZE sizeof(size_t) #define H5F_ACS_DATA_CACHE_ELMT_SIZE_DEF 521 /* Definition for size of raw data chunk cache(bytes) */ #define H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME "rdcc_nbytes" #define H5F_ACS_DATA_CACHE_BYTE_SIZE_SIZE sizeof(size_t) #define H5F_ACS_DATA_CACHE_BYTE_SIZE_DEF (1024*1024) /* Definition for preemption read chunks first */ #define H5F_ACS_PREEMPT_READ_CHUNKS_NAME "rdcc_w0" #define H5F_ACS_PREEMPT_READ_CHUNKS_SIZE sizeof(double) #define H5F_ACS_PREEMPT_READ_CHUNKS_DEF 0.75 /* Definition for threshold for alignment */ #define H5F_ACS_ALIGN_THRHD_NAME "threshold" #define H5F_ACS_ALIGN_THRHD_SIZE sizeof(hsize_t) #define H5F_ACS_ALIGN_THRHD_DEF 1 /* Definition for alignment */ #define H5F_ACS_ALIGN_NAME "align" #define H5F_ACS_ALIGN_SIZE sizeof(hsize_t) #define H5F_ACS_ALIGN_DEF 1 /* Definition for minimum metadata allocation block size (when aggregating metadata allocations. */ #define H5F_ACS_META_BLOCK_SIZE_NAME "meta_block_size" #define H5F_ACS_META_BLOCK_SIZE_SIZE sizeof(hsize_t) #define H5F_ACS_META_BLOCK_SIZE_DEF 2048 /* Definition for maximum sieve buffer size (when data sieving is allowed by file driver */ #define H5F_ACS_SIEVE_BUF_SIZE_NAME "sieve_buf_size" #define H5F_ACS_SIEVE_BUF_SIZE_SIZE sizeof(size_t) #define H5F_ACS_SIEVE_BUF_SIZE_DEF (64*1024) /* Definition for minimum "small data" allocation block size (when aggregating "small" raw data allocations. */ #define H5F_ACS_SDATA_BLOCK_SIZE_NAME "sdata_block_size" #define H5F_ACS_SDATA_BLOCK_SIZE_SIZE sizeof(hsize_t) #define H5F_ACS_SDATA_BLOCK_SIZE_DEF 2048 /* Definition for garbage-collect references */ #define H5F_ACS_GARBG_COLCT_REF_NAME "gc_ref" #define H5F_ACS_GARBG_COLCT_REF_SIZE sizeof(unsigned) #define H5F_ACS_GARBG_COLCT_REF_DEF 0 /* Definition for file driver ID */ #define H5F_ACS_FILE_DRV_ID_NAME "driver_id" #define H5F_ACS_FILE_DRV_ID_SIZE sizeof(hid_t) #define H5F_ACS_FILE_DRV_ID_DEF H5FD_SEC2 /* Definition for file driver info */ #define H5F_ACS_FILE_DRV_INFO_NAME "driver_info" #define H5F_ACS_FILE_DRV_INFO_SIZE sizeof(void*) #define H5F_ACS_FILE_DRV_INFO_DEF NULL /* Definition for file close degree */ #define H5F_CLOSE_DEGREE_NAME "close_degree" #define H5F_CLOSE_DEGREE_SIZE sizeof(H5F_close_degree_t) #define H5F_CLOSE_DEGREE_DEF H5F_CLOSE_DEFAULT /* Definition for offset position in file for family file driver */ #define H5F_ACS_FAMILY_OFFSET_NAME "family_offset" #define H5F_ACS_FAMILY_OFFSET_SIZE sizeof(hsize_t) #define H5F_ACS_FAMILY_OFFSET_DEF 0 /* Definition for data type in multi file driver */ #define H5F_ACS_MULTI_TYPE_NAME "multi_type" #define H5F_ACS_MULTI_TYPE_SIZE sizeof(H5FD_mem_t) #define H5F_ACS_MULTI_TYPE_DEF H5FD_MEM_DEFAULT /* ======================== File Mount properties ====================*/ /* Definition for whether absolute symlinks local to file. */ #define H5F_MNT_SYM_LOCAL_NAME "local" #define H5F_MNT_SYM_LOCAL_SIZE sizeof(hbool_t) #define H5F_MNT_SYM_LOCAL_DEF FALSE #ifdef H5_HAVE_PARALLEL /* Which process writes metadata */ #define H5_PAR_META_WRITE 0 #endif /* H5_HAVE_PARALLEL */ /* Forward declarations for prototype arguments */ struct H5B_class_t; struct H5RC_t; /* Private functions, not part of the publicly documented API */ H5_DLL herr_t H5F_init(void); H5_DLL hid_t H5F_get_driver_id(const H5F_t *f); H5_DLL unsigned H5F_get_intent(const H5F_t *f); H5_DLL herr_t H5F_get_fileno(const H5F_t *f, unsigned long *filenum); H5_DLL hid_t H5F_get_id(H5F_t *file); H5_DLL int H5F_get_obj_count(const H5F_t *f, unsigned types); H5_DLL int H5F_get_obj_ids(const H5F_t *f, unsigned types, int max_objs, hid_t *obj_id_list); H5_DLL haddr_t H5F_get_base_addr(const H5F_t *f); H5_DLL haddr_t H5F_get_eoa(const H5F_t *f); #ifdef H5_HAVE_PARALLEL H5_DLL int H5F_mpi_get_rank(const H5F_t *f); H5_DLL MPI_Comm H5F_mpi_get_comm(const H5F_t *f); #endif /* H5_HAVE_PARALLEL */ /* Functions than check file mounting information */ H5_DLL htri_t H5F_is_mount(const H5F_t *file); H5_DLL htri_t H5F_has_mount(const H5F_t *file); /* Functions than retrieve values set from the FCPL */ H5_DLL size_t H5F_sizeof_addr(const H5F_t *f); H5_DLL size_t H5F_sizeof_size(const H5F_t *f); H5_DLL unsigned H5F_sym_leaf_k(const H5F_t *f); H5_DLL unsigned H5F_Kvalue(const H5F_t *f, const struct H5B_class_t *type); H5_DLL hbool_t H5F_has_feature(const H5F_t *f, unsigned feature); H5_DLL size_t H5F_rdcc_nbytes(const H5F_t *f); H5_DLL size_t H5F_rdcc_nelmts(const H5F_t *f); H5_DLL double H5F_rdcc_w0(const H5F_t *f); H5_DLL struct H5RC_t *H5F_grp_btree_shared(const H5F_t *f); /* Functions that operate on blocks of bytes wrt super block */ H5_DLL herr_t H5F_block_read(const H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, hid_t dxpl_id, void *buf/*out*/); H5_DLL herr_t H5F_block_write(const H5F_t *f, H5FD_mem_t type, haddr_t addr, size_t size, hid_t dxpl_id, const void *buf); /* Address-related functions */ H5_DLL void H5F_addr_encode(const H5F_t *, uint8_t** /*in,out*/, haddr_t); H5_DLL void H5F_addr_decode(const H5F_t *, const uint8_t** /*in,out*/, haddr_t* /*out*/); H5_DLL herr_t H5F_addr_pack(H5F_t *f, haddr_t *addr_p /*out*/, const unsigned long objno[2]); /* Callback functions for file access class */ H5_DLL herr_t H5F_acs_create(hid_t fapl_id, void *close_data); H5_DLL herr_t H5F_acs_close(hid_t fapl_id, void *close_data); H5_DLL herr_t H5F_acs_copy(hid_t new_fapl_id, hid_t old_fapl_id, void *close_data); #endif