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/* This file is part of the Zebra server.
Copyright (C) Index Data
Zebra is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <idzebra/util.h>
#include <yaz/xmalloc.h>
#include "imalloc.h"
#if MEMDEBUG
#define MAG1 0x8fe1
#define MAG2 0x91
#define MAG3 0xee
long alloc = 0L;
long max_alloc = 0L;
int alloc_calls = 0;
int free_calls = 0;
#endif
void *imalloc (size_t size)
{
#if MEMDEBUG
size_t words = (4*sizeof(unsigned) -1 + size)/sizeof(unsigned);
char *p = (char *)xmalloc( words*sizeof(unsigned) );
if( !p )
yaz_log (YLOG_FATAL, "No memory: imalloc(%u); c/f %d/%d; %ld/%ld",
size, alloc_calls, free_calls, alloc, max_alloc );
*((unsigned *)p) = size;
((unsigned *)p)[1] = MAG1;
p += sizeof(unsigned)*2;
size[(unsigned char *) p] = MAG2;
size[(unsigned char *) p+1] = MAG3;
if( (alloc+=size) > max_alloc )
max_alloc = alloc;
++alloc_calls;
return (void *) p;
#else
void *p = (void *)xmalloc( size );
if( !p )
yaz_log (YLOG_FATAL, "Out of memory (imalloc)" );
return p;
#endif
}
void *icalloc (size_t size)
{
#if MEMDEBUG
unsigned words = (4*sizeof(unsigned) -1 + size)/sizeof(unsigned);
char *p = (char *) xcalloc( words*sizeof(unsigned), 1 );
if( !p )
yaz_log (YLOG_FATAL, "No memory: icalloc(%u); c/f %d/%d; %ld/%ld",
size, alloc_calls, free_calls, alloc, max_alloc );
((unsigned *)p)[0] = size;
((unsigned *)p)[1] = MAG1;
p += sizeof(unsigned)*2;
size[(unsigned char *) p] = MAG2;
size[(unsigned char *) p+1] = MAG3;
if( (alloc+=size) > max_alloc )
max_alloc = alloc;
++alloc_calls;
return (void *)p;
#else
void *p = (void *) xcalloc( size, 1 );
if( !p )
yaz_log (YLOG_FATAL, "Out of memory (icalloc)" );
return p;
#endif
}
void ifree (void *p)
{
#if MEMDEBUG
size_t size;
if( !p )
return;
++free_calls;
size = (-2)[(unsigned *) p];
if( (-1)[(unsigned *) p] != MAG1 )
yaz_log (YLOG_FATAL,"Internal: ifree(%u) magic 1 corrupted", size );
if( size[(unsigned char *) p] != MAG2 )
yaz_log (YLOG_FATAL,"Internal: ifree(%u) magic 2 corrupted", size );
if( (size+1)[(unsigned char *) p] != MAG3 )
yaz_log (YLOG_FATAL,"Internal: ifree(%u) magic 3 corrupted", size );
alloc -= size;
if( alloc < 0L )
yaz_log (YLOG_FATAL,"Internal: ifree(%u) negative alloc.", size );
xfree( (unsigned *) p-2 );
#else
xfree (p);
#endif
}
#if MEMDEBUG
void imemstat (void)
{
fprintf( stdout, "imalloc: calls malloc/free %d/%d, ",
alloc_calls, free_calls );
if( alloc )
fprintf( stdout, "memory cur/max %ld/%ld : unreleased",
alloc, max_alloc );
else
fprintf( stdout, "memory max %ld", max_alloc );
fputc( '\n', stdout );
}
#endif
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
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