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authorLennart Poettering <lennart@poettering.net>2007-10-28 19:13:50 +0000
committerLennart Poettering <lennart@poettering.net>2007-10-28 19:13:50 +0000
commita67c21f093202f142438689d3f7cfbdf4ea82eea (patch)
tree5c3295037f033904bc11ab8b3adae5b7331101e9 /src/pulsecore/thread-mq.c
parent6687dd013169fd8436aa1b45ccdacff074a40d05 (diff)
merge 'lennart' branch back into trunk.
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/pulsecore/thread-mq.c')
-rw-r--r--src/pulsecore/thread-mq.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/pulsecore/thread-mq.c b/src/pulsecore/thread-mq.c
new file mode 100644
index 00000000..9b879425
--- /dev/null
+++ b/src/pulsecore/thread-mq.c
@@ -0,0 +1,112 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 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, 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 <unistd.h>
+#include <errno.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/atomic.h>
+#include <pulsecore/once.h>
+#include <pulsecore/log.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/semaphore.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/flist.h>
+
+#include "thread-mq.h"
+
+PA_STATIC_TLS_DECLARE_NO_FREE(thread_mq);
+
+static void asyncmsgq_cb(pa_mainloop_api*api, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
+ pa_thread_mq *q = userdata;
+ pa_asyncmsgq *aq;
+
+ pa_assert(pa_asyncmsgq_get_fd(q->outq) == fd);
+ pa_assert(events == PA_IO_EVENT_INPUT);
+
+ pa_asyncmsgq_ref(aq = q->outq);
+ pa_asyncmsgq_after_poll(aq);
+
+ for (;;) {
+ pa_msgobject *object;
+ int code;
+ void *data;
+ int64_t offset;
+ pa_memchunk chunk;
+
+ /* Check whether there is a message for us to process */
+ while (pa_asyncmsgq_get(aq, &object, &code, &data, &offset, &chunk, 0) == 0) {
+ int ret;
+
+ ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
+ pa_asyncmsgq_done(aq, ret);
+ }
+
+ if (pa_asyncmsgq_before_poll(aq) == 0)
+ break;
+ }
+
+ pa_asyncmsgq_unref(aq);
+}
+
+void pa_thread_mq_init(pa_thread_mq *q, pa_mainloop_api *mainloop) {
+ pa_assert(q);
+ pa_assert(mainloop);
+
+ q->mainloop = mainloop;
+ pa_assert_se(q->inq = pa_asyncmsgq_new(0));
+ pa_assert_se(q->outq = pa_asyncmsgq_new(0));
+
+ pa_assert_se(pa_asyncmsgq_before_poll(q->outq) == 0);
+ pa_assert_se(q->io_event = mainloop->io_new(mainloop, pa_asyncmsgq_get_fd(q->outq), PA_IO_EVENT_INPUT, asyncmsgq_cb, q));
+}
+
+void pa_thread_mq_done(pa_thread_mq *q) {
+ pa_assert(q);
+
+ q->mainloop->io_free(q->io_event);
+ q->io_event = NULL;
+
+ pa_asyncmsgq_unref(q->inq);
+ pa_asyncmsgq_unref(q->outq);
+ q->inq = q->outq = NULL;
+
+ q->mainloop = NULL;
+}
+
+void pa_thread_mq_install(pa_thread_mq *q) {
+ pa_assert(q);
+
+ pa_assert(!(PA_STATIC_TLS_GET(thread_mq)));
+ PA_STATIC_TLS_SET(thread_mq, q);
+}
+
+pa_thread_mq *pa_thread_mq_get(void) {
+ return PA_STATIC_TLS_GET(thread_mq);
+}