Merge pipewire-pulseaudio subtree

pipewire-pulseaudio/src/xmalloc.c

@@ -0,0 +1,122 @@
+/* PipeWire
+ * Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <unistd.h>
+#include <errno.h>
+
+#include <spa/utils/defs.h>
+
+#include <pulse/xmalloc.h>
+
+#define MAX_ALLOC_SIZE (1024*1024*96) /* 96MB */
+
+static void oom(void) {
+	static const char e[] = "Not enough memory\n";
+	write(STDERR_FILENO, e, sizeof(e)-1);
+#ifdef SIGQUIT
+	raise(SIGQUIT);
+#endif
+	_exit(1);
+}
+
+SPA_EXPORT
+void* pa_xmalloc(size_t l)
+{
+	void *p;
+	spa_assert(l > 0);
+	spa_assert(l < MAX_ALLOC_SIZE);
+
+	if (!(p = malloc(l)))
+		oom();
+
+	return p;
+}
+
+SPA_EXPORT
+void *pa_xmalloc0(size_t l)
+{
+	void *p;
+	spa_assert(l > 0);
+	spa_assert(l < MAX_ALLOC_SIZE);
+
+	if (!(p = calloc(1, l)))
+		oom();
+
+	return p;
+}
+
+SPA_EXPORT
+void *pa_xrealloc(void *ptr, size_t size)
+{
+	void *p;
+	spa_assert(size > 0);
+	spa_assert(size < MAX_ALLOC_SIZE);
+
+	if (!(p = realloc(ptr, size)))
+		oom();
+	return p;
+}
+
+SPA_EXPORT
+void pa_xfree(void *p)
+{
+	int saved_errno;
+	if (!p)
+		return;
+	saved_errno = errno;
+	free(p);
+	errno = saved_errno;
+}
+
+SPA_EXPORT
+char *pa_xstrdup(const char *s)
+{
+	if (!s)
+		return NULL;
+	return pa_xmemdup(s, strlen(s)+1);
+}
+
+SPA_EXPORT
+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;
+}
+
+SPA_EXPORT
+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;
+	}
+}