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-rw-r--r--djgpp/mem.c325
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diff --git a/djgpp/mem.c b/djgpp/mem.c
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+++ b/djgpp/mem.c
@@ -0,0 +1,325 @@
+/*
+
+ 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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