/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5Ostab.c * Aug 6 1997 * Robb Matzke * * Purpose: Symbol table messages. * * Modifications: * *------------------------------------------------------------------------- */ #include "H5private.h" #include "H5Eprivate.h" #include "H5FLprivate.h" /*Free Lists */ #include "H5Gprivate.h" #include "H5MMprivate.h" #include "H5Oprivate.h" #define PABLO_MASK H5O_stab_mask /* PRIVATE PROTOTYPES */ static void *H5O_stab_decode(H5F_t *f, const uint8_t *p, H5O_shared_t *sh); static herr_t H5O_stab_encode(H5F_t *f, uint8_t *p, const void *_mesg); static void *H5O_stab_copy(const void *_mesg, void *_dest); static size_t H5O_stab_size(H5F_t *f, const void *_mesg); static herr_t H5O_stab_free (void *_mesg); static herr_t H5O_stab_debug(H5F_t *f, const void *_mesg, FILE * stream, int indent, int 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_copy, /*copy the native value */ H5O_stab_size, /*size of symbol table entry */ NULL, /*default reset method */ H5O_stab_free, /* free method */ NULL, /*get share method */ NULL, /*set share method */ H5O_stab_debug, /*debug the message */ }}; /* Interface initialization */ static int interface_initialize_g = 0; #define INTERFACE_INIT NULL /* Declare a free list to manage the H5O_stab_t struct */ H5FL_DEFINE_STATIC(H5O_stab_t); /*------------------------------------------------------------------------- * 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(H5F_t *f, const uint8_t *p, H5O_shared_t UNUSED *sh) { H5O_stab_t *stab; FUNC_ENTER(H5O_stab_decode, NULL); /* check args */ assert(f); assert(p); assert (!sh); /* decode */ if (NULL==(stab = H5FL_ALLOC(H5O_stab_t,1))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } H5F_addr_decode(f, &p, &(stab->btree_addr)); H5F_addr_decode(f, &p, &(stab->heap_addr)); FUNC_LEAVE(stab); } /*------------------------------------------------------------------------- * Function: H5O_stab_encode * * Purpose: Encodes a symbol table message. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_stab_encode(H5F_t *f, uint8_t *p, const void *_mesg) { const H5O_stab_t *stab = (const H5O_stab_t *) _mesg; FUNC_ENTER(H5O_stab_encode, FAIL); /* check args */ assert(f); assert(p); assert(stab); /* encode */ H5F_addr_encode(f, &p, stab->btree_addr); H5F_addr_encode(f, &p, stab->heap_addr); FUNC_LEAVE(SUCCEED); } /*------------------------------------------------------------------------- * Function: H5O_stab_fast * * Purpose: Initializes a new message struct with info from the cache of * 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: * *------------------------------------------------------------------------- */ void * H5O_stab_fast(const H5G_cache_t *cache, const H5O_class_t *type, void *_mesg) { H5O_stab_t *stab = NULL; FUNC_ENTER(H5O_stab_fast, NULL); /* check args */ assert(cache); assert(type); if (H5O_STAB == type) { if (_mesg) { stab = (H5O_stab_t *) _mesg; } else if (NULL==(stab = H5FL_ALLOC(H5O_stab_t,1))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } stab->btree_addr = cache->stab.btree_addr; stab->heap_addr = cache->stab.heap_addr; } FUNC_LEAVE(stab); } /*------------------------------------------------------------------------- * 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); /* check args */ assert(stab); if (!dest && NULL==(dest = H5FL_ALLOC(H5O_stab_t,1))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } /* 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: zero * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static size_t H5O_stab_size(H5F_t *f, const void UNUSED *_mesg) { FUNC_ENTER(H5O_stab_size, 0); FUNC_LEAVE(2 * H5F_SIZEOF_ADDR(f)); } /*------------------------------------------------------------------------- * Function: H5O_stab_free * * Purpose: Free's the message * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, March 30, 2000 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_stab_free (void *mesg) { FUNC_ENTER (H5O_stab_free, FAIL); assert (mesg); H5FL_FREE(H5O_stab_t,mesg); FUNC_LEAVE (SUCCEED); } /*------------------------------------------------------------------------- * Function: H5O_stab_debug * * Purpose: Prints debugging info for a symbol table message. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * matzke@llnl.gov * Aug 6 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_stab_debug(H5F_t UNUSED *f, const void *_mesg, FILE * stream, int indent, int fwidth) { const H5O_stab_t *stab = (const H5O_stab_t *) _mesg; FUNC_ENTER(H5O_stab_debug, FAIL); /* check args */ assert(f); assert(stab); assert(stream); assert(indent >= 0); assert(fwidth >= 0); HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth, "B-tree address:", stab->btree_addr); HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth, "Name heap address:", stab->heap_addr); FUNC_LEAVE(SUCCEED); }