1 files changed, 57 insertions, 0 deletions
diff --git a/src/pulsecore/thread-mq.h b/src/pulsecore/thread-mq.h
new file mode 100644
index 0000000..f6daa7f
--- /dev/null
+++ b/src/pulsecore/thread-mq.h
@@ -0,0 +1,57 @@
+#ifndef foopulsethreadmqhfoo
+#define foopulsethreadmqhfoo
+
+/***
+  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
+  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, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <pulse/mainloop-api.h>
+#include <pulsecore/asyncmsgq.h>
+#include <pulsecore/rtpoll.h>
+
+/* Two way communication between a thread and a mainloop. Before the
+ * thread is started a pa_thread_mq should be initialized and than
+ * attached to the thread using pa_thread_mq_install(). */
+
+typedef struct pa_thread_mq {
+    pa_mainloop_api *main_mainloop;
+    pa_mainloop_api *thread_mainloop;
+    pa_asyncmsgq *inq, *outq;
+    pa_io_event *read_main_event, *write_main_event;
+    pa_io_event *read_thread_event, *write_thread_event;
+} pa_thread_mq;
+
+int pa_thread_mq_init(pa_thread_mq *q, pa_mainloop_api *mainloop, pa_rtpoll *rtpoll);
+int pa_thread_mq_init_thread_mainloop(pa_thread_mq *q, pa_mainloop_api *main_mainloop, pa_mainloop_api *thread_mainloop);
+void pa_thread_mq_done(pa_thread_mq *q);
+
+/* Install the specified pa_thread_mq object for the current thread */
+void pa_thread_mq_install(pa_thread_mq *q);
+
+/* Return the pa_thread_mq object that is set for the current thread */
+pa_thread_mq *pa_thread_mq_get(void);
+
+/* Verify that we are in control context (aka 'main context'). */
+#define pa_assert_ctl_context(s) \
+    pa_assert(!pa_thread_mq_get())
+
+/* Verify that we are in IO context (aka 'thread context'). */
+#define pa_assert_io_context(s) \
+    pa_assert(pa_thread_mq_get())
+
+#endif