mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <signal.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <pulse/gccmacro.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/macro.h>
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#include "xmalloc.h"
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/* Make sure not to allocate more than this much memory. */
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#define MAX_ALLOC_SIZE (1024*1024*96) /* 96MB */
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/* #undef malloc */
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/* #undef free */
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/* #undef realloc */
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/* #undef strndup */
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/* #undef strdup */
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static void oom(void) PA_GCC_NORETURN;
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/* called in case of an OOM situation. Prints an error message and
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* exits */
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static void oom(void) {
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static const char e[] = "Not enough memory\n";
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pa_loop_write(STDERR_FILENO, e, sizeof(e)-1, NULL);
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#ifdef SIGQUIT
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raise(SIGQUIT);
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#endif
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_exit(1);
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}
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void* pa_xmalloc(size_t size) {
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void *p;
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pa_assert(size > 0);
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pa_assert(size < MAX_ALLOC_SIZE);
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if (!(p = malloc(size)))
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oom();
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return p;
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}
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void* pa_xmalloc0(size_t size) {
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void *p;
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pa_assert(size > 0);
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pa_assert(size < MAX_ALLOC_SIZE);
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if (!(p = calloc(1, size)))
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oom();
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return p;
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}
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void *pa_xrealloc(void *ptr, size_t size) {
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void *p;
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pa_assert(size > 0);
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pa_assert(size < MAX_ALLOC_SIZE);
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if (!(p = realloc(ptr, size)))
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oom();
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return p;
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}
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void* pa_xmemdup(const void *p, size_t l) {
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if (!p)
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return NULL;
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else {
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char *r = pa_xmalloc(l);
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memcpy(r, p, l);
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return r;
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}
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}
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char *pa_xstrdup(const char *s) {
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if (!s)
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return NULL;
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return pa_xmemdup(s, strlen(s)+1);
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}
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char *pa_xstrndup(const char *s, size_t l) {
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char *e, *r;
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if (!s)
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return NULL;
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if ((e = memchr(s, 0, l)))
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return pa_xmemdup(s, (size_t) (e-s+1));
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r = pa_xmalloc(l+1);
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memcpy(r, s, l);
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r[l] = 0;
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return r;
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}
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void pa_xfree(void *p) {
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int saved_errno;
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if (!p)
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return;
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saved_errno = errno;
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free(p);
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errno = saved_errno;
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}
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