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/*
viDOOM - level editor for DOOM
Copyright (C) 2000 Ian Cowburn (ianc@noddybox.demon.co.uk)
This program 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 of the License, or
(at your option) any later version.
This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-------------------------------------------------------------------------
Memory allocation code
*/
static const char rcs_id[]="$Id$";
#include "config.h"
#include <stdio.h>
#include <string.h>
#include "mem.h"
#include "gfx.h"
#include "debug.h"
/* Comment out this define to switch off memory stats in the working version
#define MEMSTAT
*/
#ifdef MEMSTAT
typedef struct
{
Long size;
Long realloc;
Long free;
char file[32];
Long line;
} MemInfo;
static Long grab_call=0;
static Long regrab_call=0;
static Long release_call=0;
static Long copy_call=0;
static Long strdup_call=0;
static Long total=0;
static Long total_grab=0;
static Long total_regrab=0;
static Long total_copy=0;
static Long total_free=0;
static Long total_strdup=0;
static void status(void)
{
Debug(("Total calls to Grab() : %lu\n",grab_call));
Debug(("Total calls to Regrab() : %lu\n",regrab_call));
Debug(("Total calls to Release() : %lu\n",release_call));
Debug(("Total calls to Copy() : %lu\n",copy_call));
Debug(("Total calls to Strdup() : %lu\n",strdup_call));
Debug(("Total bytes allocated : %lu\n",total));
Debug(("Total bytes allocated over life : %lu\n",total_grab));
Debug(("Total bytes regrabbed over life : %lu\n",total_regrab));
Debug(("Total bytes copied over life : %lu\n",total_copy));
Debug(("Total bytes released over life : %lu\n",total_free));
Debug(("Total bytes strdupped over life : %lu\n\n",total_strdup));
}
#endif
#ifdef MEMSTAT
void *FGrab(char *fn, int line, int len)
{
char *ptr;
MemInfo *mi;
if (len==0)
len=1;
if (!(ptr=malloc(len+sizeof(MemInfo))))
{
status();
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d Grab(%d)\n",fn,line,len);
}
mi=(MemInfo *)ptr;
mi->size=len;
mi->realloc=0;
mi->free=0;
ptr+=sizeof(MemInfo);
grab_call++;
total_grab+=len;
total+=len;
memset(ptr,0,len);
return(ptr);
}
#else
void *FGrab(char *fn, int line, int len)
{
void *ptr;
if (len==0)
len=1;
if (!(ptr=malloc(len)))
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d Grab(%d)\n",fn,line,len);
memset(ptr,0,len);
return(ptr);
}
#endif
#ifdef MEMSTAT
void *FReGrab(char *fn, int line, void *ptr, int len)
{
Long old;
MemInfo *mi;
char *p;
if (len==0)
len=1;
p=ptr;
if (p)
p-=sizeof(MemInfo);
if (!(p=realloc(p,len+sizeof(MemInfo))))
{
status();
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d ReGrab(%d)\n",fn,line,len);
}
regrab_call++;
total_regrab+=len;
mi=(MemInfo *)p;
old=mi->size;
mi->size=len;
mi->realloc++;
total-=old;
total+=len;
p+=sizeof(MemInfo);
return(p);
}
#else
void *FReGrab(char *fn, int line, void *ptr, int len)
{
if (len==0)
len=1;
if (!(ptr=realloc(ptr,len)))
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d ReGrab(%d)\n",fn,line,len);
return(ptr);
}
#endif
#ifdef MEMSTAT
void FRelease(char *fn, int line, void *p)
{
char *cp;
MemInfo *mi;
if (!p)
return;
cp=p;
cp-=sizeof(MemInfo);
mi=(MemInfo *)cp;
if (mi->free==1)
Debug(("%p already freed!!! Current=%s:%d, previous=%s:%d\n",
p,fn,line,mi->file,mi->line));
release_call++;
total_free+=mi->size;
total-=mi->size;
strcpy(mi->file,fn);
mi->line=line;
mi->free=1;
free(cp);
}
#else
void FRelease(char *fn, int line, void *p)
{
free(p);
}
#endif
#ifdef MEMSTAT
void *FCopy(char *fn, int line, void *p,int len)
{
char s[128];
void *ptr;
strcpy(s,fn);
strcat(s," [FCopy()]");
if (len==0)
ptr=FGrab(s,line,1);
else
ptr=FGrab(s,line,len);
copy_call++;
total_copy+=len;
if (len)
memcpy(ptr,p,len);
return(ptr);
}
#else
void *FCopy(char *fn, int line, void *p,int len)
{
void *ptr;
if (len==0)
ptr=malloc(1);
else
ptr=malloc(len);
if (!ptr)
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d Copy(%p,%d)\n",fn,line,p,len);
if (len)
memcpy(ptr,p,len);
return(ptr);
}
#endif
#ifdef MEMSTAT
char *FStrdup(char *fn, int line, char *p)
{
char s[128];
char *ptr;
strcpy(s,fn);
strcat(s," [Strdup()]");
if (p)
{
ptr=FGrab(s,line,strlen(p)+1);
strdup_call++;
total_strdup+=strlen(p)+1;
strcpy(ptr,p);
return(ptr);
}
else
return(NULL);
}
#else
char *FStrdup(char *fn, int line, char *p)
{
char *ptr;
if (p)
{
if (!(ptr=malloc(strlen(p)+1)))
GFX_exit(EXIT_FAILURE,"Memory allocation failed!\n"
"%s:%d Stdup(%s)\n",fn,line,p);
strcpy(ptr,p);
return(ptr);
}
else
return(NULL);
}
#endif
/* END OF FILE */
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