/*------------------------------------------------------------------------- * Copyright (C) 1997 National Center for Supercomputing Applications. * All rights reserved. * *------------------------------------------------------------------------- * * Created: H5Ostab.c * Aug 6 1997 * Robb Matzke * * Purpose: Symbol table messages. * * Modifications: * *------------------------------------------------------------------------- */ #include #include #include #include #include #define PABLO_MASK H5O_stab_mask /* PRIVATE PROTOTYPES */ static void *H5O_stab_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p); static herr_t H5O_stab_encode (hdf5_file_t *f, size_t size, uint8 *p, const void *_mesg); static void *H5O_stab_fast (const H5G_entry_t *ent, void *_mesg); static hbool_t H5O_stab_cache (H5G_entry_t *ent, const void *_mesg); static void *H5O_stab_copy (const void *_mesg, void *_dest); static size_t H5O_stab_size (hdf5_file_t *f, const void *_mesg); static herr_t H5O_stab_debug (hdf5_file_t *f, const void *_mesg, FILE *stream, intn indent, intn fwidth); /* This message derives from H5O */ const H5O_class_t H5O_STAB[1] = {{ H5O_STAB_ID, /*message id number */ "stab", /*message name for debugging */ sizeof (H5O_stab_t), /*native message size */ H5O_stab_decode, /*decode message */ H5O_stab_encode, /*encode message */ H5O_stab_fast, /*get message from stab entry */ H5O_stab_cache, /*put message into stab entry */ H5O_stab_copy, /*copy the native value */ H5O_stab_size, /*size of symbol table entry */ NULL, /*default reset method */ H5O_stab_debug, /*debug the message */ }}; /* Is the interface initialized? */ static hbool_t interface_initialize_g = FALSE; /*------------------------------------------------------------------------- * Function: H5O_stab_decode * * Purpose: Decode a symbol table message and return a pointer to * a new one created with malloc(). * * Return: Success: Ptr to new message in native order. * * Failure: NULL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_stab_decode (hdf5_file_t *f, size_t raw_size, const uint8 *p) { H5O_stab_t *stab; FUNC_ENTER (H5O_stab_decode, NULL, NULL); /* check args */ assert (f); assert (raw_size == 2*H5F_SIZEOF_OFFSET(f)); assert (p); /* decode */ stab = H5MM_xcalloc (1, sizeof(H5O_stab_t)); H5F_decode_offset (f, p, stab->btree_addr); H5F_decode_offset (f, p, stab->heap_addr); FUNC_LEAVE (stab); } /*------------------------------------------------------------------------- * Function: H5O_stab_encode * * Purpose: Encodes a symbol table message. * * Return: Success: SUCCEED * * Failure: FAIL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_stab_encode (hdf5_file_t *f, size_t raw_size, uint8 *p, const void *_mesg) { const H5O_stab_t *stab = (const H5O_stab_t *)_mesg; FUNC_ENTER (H5O_stab_encode, NULL, FAIL); /* check args */ assert (f); assert (raw_size == 2 * H5F_SIZEOF_OFFSET(f)); assert (p); assert (stab); /* encode */ H5F_encode_offset (f, p, stab->btree_addr); H5F_encode_offset (f, p, stab->heap_addr); FUNC_LEAVE (SUCCEED); } /*------------------------------------------------------------------------- * Function: H5O_stab_fast * * Purpose: Initializes a new message struct with info from a symbol * table entry. * * Return: Success: Ptr to message struct, allocated if none * supplied. * * Failure: NULL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_stab_fast (const H5G_entry_t *ent, void *_mesg) { H5O_stab_t *stab = (H5O_stab_t *)_mesg; FUNC_ENTER (H5O_stab_fast, NULL, NULL); /* check args */ assert (ent); if (H5G_CACHED_STAB==ent->type) { if (!stab) stab = H5MM_xcalloc (1, sizeof(H5O_stab_t)); stab->btree_addr = ent->cache.stab.btree_addr; stab->heap_addr = ent->cache.stab.heap_addr; } else { stab = NULL; } FUNC_LEAVE (stab); } /*------------------------------------------------------------------------- * Function: H5O_stab_cache * * Purpose: Copies a message into the cache portion of a symbol table * entry. * * Return: Success: TRUE if modified. * FALSE if not modified. * * Failure: FAIL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static hbool_t H5O_stab_cache (H5G_entry_t *ent, const void *_mesg) { const H5O_stab_t *stab = (const H5O_stab_t *)_mesg; hbool_t modified = FALSE; FUNC_ENTER (H5O_stab_cache, NULL, FAIL); /* check args */ assert (ent); assert (stab); /* * We do this in two steps so Purify doesn't complain about * uninitialized memory reads even though they don't bother * anything. */ if (H5G_CACHED_STAB != ent->type) { modified = TRUE; ent->type = H5G_CACHED_STAB; ent->cache.stab.btree_addr = stab->btree_addr; ent->cache.stab.heap_addr = stab->heap_addr; } else { if (ent->cache.stab.btree_addr != stab->btree_addr) { modified = TRUE; ent->cache.stab.btree_addr = stab->btree_addr; } if (ent->cache.stab.heap_addr != stab->heap_addr) { modified = TRUE; ent->cache.stab.heap_addr = stab->heap_addr; } } FUNC_LEAVE (modified); } /*------------------------------------------------------------------------- * Function: H5O_stab_copy * * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if * necessary. * * Return: Success: Ptr to _DEST * * Failure: NULL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_stab_copy (const void *_mesg, void *_dest) { const H5O_stab_t *stab = (const H5O_stab_t *)_mesg; H5O_stab_t *dest = (H5O_stab_t *)_dest; FUNC_ENTER (H5O_stab_copy, NULL, NULL); /* check args */ assert (stab); if (!dest) dest = H5MM_xcalloc (1, sizeof(H5O_stab_t)); /* copy */ *dest = *stab; FUNC_LEAVE ((void*)dest); } /*------------------------------------------------------------------------- * Function: H5O_stab_size * * Purpose: Returns the size of the raw message in bytes not counting * the message type or size fields, but only the data fields. * This function doesn't take into account alignment. * * Return: Success: Message data size in bytes without alignment. * * Failure: FAIL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static size_t H5O_stab_size (hdf5_file_t *f, const void *_mesg) { FUNC_ENTER (H5O_stab_size, NULL, FAIL); FUNC_LEAVE (2 * H5F_SIZEOF_OFFSET(f)); } /*------------------------------------------------------------------------- * Function: H5O_stab_debug * * Purpose: Prints debugging info for a symbol table message. * * Return: Success: SUCCEED * * Failure: FAIL * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_stab_debug (hdf5_file_t *f, const void *_mesg, FILE *stream, intn indent, intn fwidth) { const H5O_stab_t *stab = (const H5O_stab_t *)_mesg; FUNC_ENTER (H5O_stab_debug, NULL, FAIL); /* check args */ assert (f); assert (stab); assert (stream); assert (indent>=0); assert (fwidth>=0); fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth, "B-tree address:", (unsigned long)(stab->btree_addr)); fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth, "Name heap address:", (unsigned long)(stab->heap_addr)); FUNC_LEAVE (SUCCEED); }