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/*
* malloc.c: safe wrappers around malloc, realloc, free, strdup
*/
#include <stdlib.h>
#include <string.h>
#include "src/puzzles.h"
/*
* smalloc should guarantee to return a useful pointer - Halibut
* can do nothing except die when it's out of memory anyway.
*/
int allocs = 0;
int frees = 0;
/* We don't load as an overlay anymore, so the audiobuf should always
* be available. */
bool audiobuf_available = true;
static bool grab_audiobuf(void)
{
if(!audiobuf_available)
return false;
if(rb->audio_status())
rb->audio_stop();
size_t sz;
void *audiobuf = rb->plugin_get_audio_buffer(&sz);
extern char *giant_buffer;
#if 0
/* Try aligning if tlsf crashes in add_new_area(). This is
* disabled now since things seem to work without it. */
void *old = audiobuf;
/* I'm sorry. */
audiobuf = (void*)((int) audiobuf & ~0xff);
audiobuf += 0x100;
sz -= audiobuf - old;
#endif
add_new_area(audiobuf, sz, giant_buffer);
audiobuf_available = false;
return true;
}
void *smalloc(size_t size) {
void *p;
p = malloc(size);
//LOGF("allocs: %d", ++allocs);
if (!p)
{
if(grab_audiobuf())
return smalloc(size);
fatal("out of memory");
}
return p;
}
/*
* sfree should guaranteeably deal gracefully with freeing NULL
*/
void sfree(void *p) {
if (p) {
++frees;
//LOGF("frees: %d, total outstanding: %d", frees, allocs - frees);
free(p);
}
}
/*
* srealloc should guaranteeably be able to realloc NULL
*/
void *srealloc(void *p, size_t size) {
void *q;
if (p) {
q = realloc(p, size);
} else {
//LOGF("allocs: %d", ++allocs);
q = malloc(size);
}
if (!q)
{
if(grab_audiobuf())
return srealloc(p, size);
fatal("out of memory");
}
return q;
}
/*
* dupstr is like strdup, but with the never-return-NULL property
* of smalloc (and also reliably defined in all environments :-)
*/
char *dupstr(const char *s) {
char *r = smalloc(1+strlen(s));
strcpy(r,s);
return r;
}
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