637c7414a9
- upon a failed smalloc(), the audio buffer will be used for further allocations - should fix things on low-memory targets (c100 and c200v2), but breaks playback - playback should still be intact on other targets Change-Id: Ic239f1316efadc957050afacf5c614dbbca3f805
93 lines
1.7 KiB
C
93 lines
1.7 KiB
C
/*
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* malloc.c: safe wrappers around malloc, realloc, free, strdup
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "puzzles.h"
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/*
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* smalloc should guarantee to return a useful pointer - Halibut
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* can do nothing except die when it's out of memory anyway.
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*/
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int allocs = 0;
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int frees = 0;
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bool audiobuf_available =
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#ifndef COMBINED
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true;
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#else
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false;
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#endif
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static bool grab_audiobuf(void)
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{
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if(!audiobuf_available)
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return false;
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if(rb->audio_status())
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rb->audio_stop();
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size_t sz, junk;
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void *audiobuf = rb->plugin_get_audio_buffer(&sz);
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extern char *giant_buffer;
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add_new_area(audiobuf, sz, giant_buffer);
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audiobuf_available = false;
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return true;
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}
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void *smalloc(size_t size) {
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void *p;
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p = malloc(size);
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LOGF("allocs: %d", ++allocs);
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if (!p)
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{
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if(grab_audiobuf())
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return smalloc(size);
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fatal("out of memory");
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}
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return p;
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}
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/*
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* sfree should guaranteeably deal gracefully with freeing NULL
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*/
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void sfree(void *p) {
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if (p) {
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++frees;
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LOGF("frees: %d, total outstanding: %d", frees, allocs - frees);
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free(p);
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}
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}
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/*
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* srealloc should guaranteeably be able to realloc NULL
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*/
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void *srealloc(void *p, size_t size) {
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void *q;
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if (p) {
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q = realloc(p, size);
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} else {
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LOGF("allocs: %d", ++allocs);
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q = malloc(size);
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}
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if (!q)
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{
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if(grab_audiobuf())
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return srealloc(p, size);
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fatal("out of memory");
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}
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return q;
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}
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/*
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* dupstr is like strdup, but with the never-return-NULL property
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* of smalloc (and also reliably defined in all environments :-)
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*/
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char *dupstr(const char *s) {
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char *r = smalloc(1+strlen(s));
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strcpy(r,s);
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return r;
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}
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