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/*
memalloc.c:
Copyright (C) 1991 Barry Vercoe, John ffitch, Richard Dobson
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA
*/
#include "cs.h" /* MEMALLOC.C */
/*RWD 9:2000 for pvocex support */
#include "pvfileio.h"
/*RWD 9:2000 fix memory leak in strings array */
extern void free_strings(void);
/* global here so reachable by all standalones */
MYFLT sstrcod = (MYFLT)SSTRCOD;
extern void rlsmemfiles(void);
/* #define MEMDEBUG */
#if defined (_WIN32) && !defined(__GNUC__) /*RWD want this for console version too */
#include <crtdbg.h>
extern void DisplayMsg(char *, ...);
#endif
typedef struct {
void *p;
long n;
} MEMREC;
static int apsize = 0;
#ifdef MEMDEBUG
extern void *memfiles;
static MEMREC* all = NULL;
static int ap=0;
void all_free(void)
{
if (!all) return;
/* DisplayMsg("%d blocks to free", ap); */
rlsmemfiles();
while (--ap>=0) {
/* DisplayMsg("freeing %p(%d)", all[ap].p, all[ap].n); */
if (all[ap].p != NULL) free(all[ap].p);
all[ap].p = NULL;
}
free(all);
all = NULL; /* For safety */
ap = 0;
apsize = 0;
/*RWD 9:2000 not terribly vital, but good to do this somewhere... */
pvsys_release();
free_strings();
memfiles = NULL;
return;
}
#endif
void memRESET(void)
{
#ifdef MEMDEBUG
all_free();
ap = 0;
all = NULL;
#endif
apsize = 0;
}
static void memdie(long nbytes)
{
err_printf(Str(X_989,"memory allocate failure for %d\n"), nbytes);
#ifdef mills_macintosh
err_printf(Str(X_1297,"try increasing preferred size setting for the Perf Application\n"));
#endif
longjmp(cglob.exitjmp,1);
}
void *
mcalloc(long nbytes) /* allocate new memory space, cleared to 0 */
{
void *p;
#ifdef _DEBUG
if (!_CrtCheckMemory()) {
printf("Memory error\n");
}
#endif
if ((p = calloc((size_t)nbytes, (size_t)1)) == NULL) {
if (nbytes==0) return NULL;
else memdie(nbytes);
}
#ifdef MEMDEBUG
if (ap >= apsize) {
MEMREC *new_all = (MEMREC*)realloc(all, sizeof(MEMREC)*(apsize += 1020));
if (new_all == NULL) err_printf( "Too many allocs\n"), longjmp(cglob.exitjmp,1);
all = new_all;
}
all[ap].n = nbytes;
all[ap++].p = p;
#endif
return(p);
}
void *
mmalloc(long nbytes) /* allocate new memory space, NOT cleared to 0 */
{
void *p;
#ifdef _DEBUG
if (!_CrtCheckMemory()) {
printf("Memory error\n");
}
#endif
if ((p = malloc((size_t)nbytes)) == NULL)
memdie(nbytes);
#ifdef MEMDEBUG
if (ap >= apsize) {
MEMREC *new_all = (MEMREC *)realloc(all, sizeof(MEMREC)*(apsize += 1020));
if (new_all == NULL) err_printf( "Too many allocs\n"), longjmp(cglob.exitjmp,1);
all = new_all;
}
all[ap].n = nbytes;
all[ap++].p = p;
#endif
return(p);
}
void *
mrealloc(void *old, long nbytes) /* Packaged realloc */
{
void *p;
#ifdef _DEBUG
if (!_CrtCheckMemory()) {
printf("Memory error\n");
}
#endif
if ((p = realloc(old, (size_t)nbytes)) == NULL)
memdie(nbytes);
#ifdef MEMDEBUG
if (old != NULL) {
int oldall = 0;
while (all[oldall].p != old) {
oldall++;
if (oldall > ap) memdie(-nbytes);
}
/* err_printf("Changing %p(%d) to %p(%d)\n", old, all[oldall].n, p, nbytes); */
all[oldall].n = nbytes;
all[oldall].p = p;
}
else {
if (ap >= apsize) {
MEMREC *new_all = (MEMREC*)realloc(all, sizeof(MEMREC)*(apsize += 1020));
if (new_all == NULL) err_printf( "Too many allocs\n"), longjmp(cglob.exitjmp,1);
all = new_all;
}
all[ap].n = nbytes;
all[ap++].p = p;
}
#endif
return(p);
}
void mfree(void *ptr)
{
#ifdef MEMDEBUG
int i = 0;
if (!ptr) return;
/**
* Fixed bug - used to throw an exception if all was null.
*/
if (all == NULL) {
return;
}
while (all[i].p != ptr) {
i++;
if (i>ap) memdie(0);
}
/* err_printf("Freeing %d bytes\n", all[i].n); */
all[i].p = NULL;
#endif
#ifdef _DEBUG
if (!_CrtCheckMemory()) {
printf("Memory error\n");
}
#endif
free(ptr);
}
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