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/*-------------------------------------------------------------------------
* Copyright (C) 1997-2001 National Center for Supercomputing Applications
* All rights reserved.
*
*-------------------------------------------------------------------------
*
* Created: H5Ostab.c
* Aug 6 1997
* Robb Matzke <matzke@llnl.gov>
*
* 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=NULL;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5O_stab_decode, NULL);
/* check args */
assert(f);
assert(p);
assert (!sh);
/* decode */
if (NULL==(stab = H5FL_ALLOC(H5O_stab_t,1)))
HGOTO_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));
/* Set return value */
ret_value=stab;
done:
if(ret_value==NULL) {
if(stab!=NULL)
H5FL_FREE(H5O_stab_t,stab);
} /* end if */
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* 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;
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(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);
done:
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* 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;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI(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))) {
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
}
stab->btree_addr = cache->stab.btree_addr;
stab->heap_addr = cache->stab.heap_addr;
}
/* Set return value */
ret_value=stab;
done:
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* 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;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5O_stab_copy, NULL);
/* check args */
assert(stab);
if (!dest && NULL==(dest = H5FL_ALLOC(H5O_stab_t,1)))
HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed");
/* copy */
*dest = *stab;
/* Set return value */
ret_value=dest;
done:
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* 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)
{
size_t ret_value; /* Return value */
FUNC_ENTER_NOAPI(H5O_stab_size, 0);
/* Set return value */
ret_value=2 * H5F_SIZEOF_ADDR(f);
done:
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* 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)
{
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5O_stab_free, FAIL);
assert (mesg);
H5FL_FREE(H5O_stab_t,mesg);
done:
FUNC_LEAVE (ret_value);
}
/*-------------------------------------------------------------------------
* 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;
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(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);
done:
FUNC_LEAVE(ret_value);
}
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