1 files changed, 131 insertions, 0 deletions
diff --git a/src/pulse/xmalloc.c b/src/pulse/xmalloc.c
new file mode 100644
index 0000000..1a535b3
--- /dev/null
+++ b/src/pulse/xmalloc.c
@@ -0,0 +1,131 @@
+/***
+  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 2.1 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, see <http://www.gnu.org/licenses/>.
+***/
+
+#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*96) /* 96MB */
+
+/* #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, (size_t) (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;
+}