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/* $Id$ */
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio 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 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <pulse/gccmacro.h>
#include <pulsecore/core-util.h>
#include <pulsecore/macro.h>
#include "xmalloc.h"
/* Make sure not to allocate more than this much memory. */
#define MAX_ALLOC_SIZE (1024*1024*20) /* 20MB */
/* #undef malloc */
/* #undef free */
/* #undef realloc */
/* #undef strndup */
/* #undef strdup */
static void oom(void) PA_GCC_NORETURN;
/** called in case of an OOM situation. Prints an error message and
* exits */
static void oom(void) {
static const char e[] = "Not enough memory\n";
pa_loop_write(STDERR_FILENO, e, sizeof(e)-1, NULL);
#ifdef SIGQUIT
raise(SIGQUIT);
#endif
_exit(1);
}
void* pa_xmalloc(size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = malloc(size)))
oom();
return p;
}
void* pa_xmalloc0(size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = calloc(1, size)))
oom();
return p;
}
void *pa_xrealloc(void *ptr, size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = realloc(ptr, size)))
oom();
return p;
}
void* pa_xmemdup(const void *p, size_t l) {
if (!p)
return NULL;
else {
char *r = pa_xmalloc(l);
memcpy(r, p, l);
return r;
}
}
char *pa_xstrdup(const char *s) {
if (!s)
return NULL;
return pa_xmemdup(s, strlen(s)+1);
}
char *pa_xstrndup(const char *s, size_t l) {
char *e, *r;
if (!s)
return NULL;
if ((e = memchr(s, 0, l)))
return pa_xmemdup(s, e-s+1);
r = pa_xmalloc(l+1);
memcpy(r, s, l);
r[l] = 0;
return r;
}
void pa_xfree(void *p) {
int saved_errno;
if (!p)
return;
saved_errno = errno;
free(p);
errno = saved_errno;
}
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