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-rw-r--r--src/pulse/mainloop-api.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/pulse/mainloop-api.c b/src/pulse/mainloop-api.c
new file mode 100644
index 00000000..2e20b446
--- /dev/null
+++ b/src/pulse/mainloop-api.c
@@ -0,0 +1,70 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ 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
+ Lesser 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 <assert.h>
+#include <stdlib.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/gccmacro.h>
+
+#include "mainloop-api.h"
+
+struct once_info {
+ void (*callback)(pa_mainloop_api*m, void *userdata);
+ void *userdata;
+};
+
+static void once_callback(pa_mainloop_api *m, pa_defer_event *e, void *userdata) {
+ struct once_info *i = userdata;
+ assert(m && i && i->callback);
+
+ i->callback(m, i->userdata);
+
+ assert(m->defer_free);
+ m->defer_free(e);
+}
+
+static void free_callback(pa_mainloop_api *m, PA_GCC_UNUSED pa_defer_event *e, void *userdata) {
+ struct once_info *i = userdata;
+ assert(m && i);
+ pa_xfree(i);
+}
+
+void pa_mainloop_api_once(pa_mainloop_api* m, void (*callback)(pa_mainloop_api *m, void *userdata), void *userdata) {
+ struct once_info *i;
+ pa_defer_event *e;
+ assert(m && callback);
+
+ i = pa_xnew(struct once_info, 1);
+ i->callback = callback;
+ i->userdata = userdata;
+
+ assert(m->defer_new);
+ e = m->defer_new(m, once_callback, i);
+ assert(e);
+ m->defer_set_destroy(e, free_callback);
+}
+