1 files changed, 60 insertions, 0 deletions
diff --git a/polyp/mainloop-api.c b/polyp/mainloop-api.c
new file mode 100644
index 00000000..cce49c06
--- /dev/null
+++ b/polyp/mainloop-api.c
@@ -0,0 +1,60 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+ 
+  polypaudio 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 General Public License
+  along with polypaudio; 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 "mainloop-api.h"
+
+struct once_info {
+    void (*callback)(void *userdata);
+    void *userdata;
+};
+
+static void once_callback(struct pa_mainloop_api *api, void *id, void *userdata) {
+    struct once_info *i = userdata;
+    assert(api && i && i->callback);
+    i->callback(i->userdata);
+    assert(api->cancel_fixed);
+    api->cancel_fixed(api, id);
+    free(i);
+}
+
+void pa_mainloop_api_once(struct pa_mainloop_api* api, void (*callback)(void *userdata), void *userdata) {
+    struct once_info *i;
+    void *id;
+    assert(api && callback);
+
+    i = malloc(sizeof(struct once_info));
+    assert(i);
+    i->callback = callback;
+    i->userdata = userdata;
+
+    assert(api->source_fixed);
+    id = api->source_fixed(api, once_callback, i);
+    assert(id);
+
+    /* Note: if the mainloop is destroyed before once_callback() was called, some memory is leaked. */
+}
+