diff options
Diffstat (limited to 'src/H5Fprivate.h')
| -rw-r--r-- | src/H5Fprivate.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/H5Fprivate.h b/src/H5Fprivate.h new file mode 100644 index 0000000..2151b29 --- /dev/null +++ b/src/H5Fprivate.h @@ -0,0 +1,101 @@ +/**************************************************************************** + * NCSA HDF * + * Software Development Group * + * National Center for Supercomputing Applications * + * University of Illinois at Urbana-Champaign * + * 605 E. Springfield, Champaign IL 61820 * + * * + * For conditions of distribution and use, see the accompanying * + * hdf/COPYING file. * + * * + ****************************************************************************/ + +/* $Id$ */ + +/* + * This file contains macros & information for file access + */ + +#ifndef HDF5FILE_H +#define HDF5FILE_H + +#include "H5Fproto.h" /* Include Public Definitions */ + + /*****************************************/ + /*** This is the top level header file ***/ + /*** and shouldn't depend on any other ***/ + /*** packages! ***/ + /*****************************************/ + + + +#define SIZEOF_OFFSET(F) ((F)->file_create_parms.offset_size) +#define SIZEOF_SIZE(F) ((F)->file_create_parms.length_size) + +/* Size of the default error stack for file IDs */ +#define HDF5_FILE_ERRSTACK 16 + +/* Define the structure to store the file information for HDF5 files */ +typedef struct { + char *dir; /* Directory the file is located within */ + char *filename; /* Filename of file */ + uintn acc_perm; /* Access Permissions for file */ + hdf_file_t file_handle; /* File handle for actual I/O */ + int32 file_err; /* Error stack ID for this file */ + uintn ref_count; /* Reference count for number of times file is opened */ + uint32 consist_flags; /* File Consistency Flags */ + size_t smallobj_off; /* Offset of small-object heap within the file */ + size_t freespace_off; /* Offset of free-space info within the file */ + size_t logical_len; /* Logical length of file */ + struct H5AC_cache_t *cache; /* The object cache */ + file_create_temp_t file_create_parms; /* File-creation template parameters */ +#ifdef LATER + file_access_temp_t file_access_parms; /* File-access template parameters */ +#endif /* LATER */ + struct H5G_entry_t *root_sym; /* Extra for the root symbol in the file */ + } hdf5_file_t; + +/* Define a macro to ease calculation of the symbol-table entry size */ +#define H5F_symbol_table_size(f) (4+ /* "Symbol-type" bytes */ \ + f->file_create_parms.offset_size+ /* Offset bytes */ \ + f->file_create_parms.length_size+ /* Length bytes */ \ + 4+ /* Name offset in local heap */ \ + 24) /* "Scratch" space */ \ + +#ifdef NOT_YET +#define H5F_encode_offset(f,p,o) (f->file_create_parms.offset_size==4 ? UINT32ENCODE(p,o) \ + : f->file_create_parms.offset_size==8 ? UINT64ENCODE(p,o) \ + : f->file_create_parms.offset_size==2 ? UINT16ENCODE(p,o) \ + : H5FPencode_unusual_offset(f,&(p),(uint8 *)&(o))) +#else /* NOT_YET */ +#define H5F_encode_offset(f,p,o) switch(f->file_create_parms.offset_size) { 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(f->file_create_parms.offset_size) { case 4: UINT32DECODE(p,o); break;\ + case 8: UINT64DECODE(p,o); break;\ + case 2: UINT16DECODE(p,o); break;} + +#ifdef NOT_YET +#define H5F_encode_length(f,p,l) (f->file_create_parms.length_size==4 ? UINT32ENCODE(p,l) \ + : f->file_create_parms.length_size==8 ? UINT64ENCODE(p,l) \ + : f->file_create_parms.length_size==2 ? UINT16ENCODE(p,l) : H5FPencode_unusual_length(f,&(p),(uint8 *)&(l))) +#else /* NOT_YET */ +#define H5F_encode_length(f,p,l) switch(f->file_create_parms.length_size) { case 4: UINT32ENCODE(p,l); break;\ + case 8: UINT64ENCODE(p,l); break;\ + case 2: UINT16ENCODE(p,l); break;} +#endif /* NOT_YET */ + +#define H5F_decode_length(f,p,l) switch(f->file_create_parms.length_size) { case 4: UINT32DECODE(p,l); break;\ + case 8: UINT64DECODE(p,l); break;\ + case 2: UINT16DECODE(p,l); break;} + +/* Private functions, not part of the publicly documented API */ +void H5F_encode_length_unusual(const hdf5_file_t *f, uint8 **p, uint8 *l); +void H5F_encode_offset_unusual(const hdf5_file_t *f, uint8 **p, uint8 *o); +intn H5F_compare_filename(const VOIDP obj, const VOIDP key); +herr_t H5F_block_read (hdf5_file_t *f, off_t addr, size_t size, void *buf); +herr_t H5F_block_write (hdf5_file_t *f, off_t addr, size_t size, void *buf); + +#endif /* HDF5FILE_H */ + |