mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
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/* $Id$ */
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/***
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This file is part of PulseAudio.
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Copyright 2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <unistd.h>
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#include <errno.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/atomic.h>
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#include <pulsecore/once.h>
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#include <pulsecore/log.h>
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#include <pulsecore/thread.h>
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#include <pulsecore/semaphore.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/flist.h>
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#include "thread-mq.h"
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PA_STATIC_TLS_DECLARE_NO_FREE(thread_mq);
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static void asyncmsgq_cb(pa_mainloop_api*api, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
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pa_thread_mq *q = userdata;
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pa_asyncmsgq *aq;
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pa_assert(pa_asyncmsgq_get_fd(q->outq) == fd);
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pa_assert(events == PA_IO_EVENT_INPUT);
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pa_asyncmsgq_ref(aq = q->outq);
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pa_asyncmsgq_after_poll(aq);
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for (;;) {
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pa_msgobject *object;
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int code;
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void *data;
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int64_t offset;
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pa_memchunk chunk;
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/* Check whether there is a message for us to process */
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while (pa_asyncmsgq_get(aq, &object, &code, &data, &offset, &chunk, 0) == 0) {
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int ret;
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ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
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pa_asyncmsgq_done(aq, ret);
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}
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if (pa_asyncmsgq_before_poll(aq) == 0)
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break;
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}
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pa_asyncmsgq_unref(aq);
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}
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void pa_thread_mq_init(pa_thread_mq *q, pa_mainloop_api *mainloop) {
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pa_assert(q);
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pa_assert(mainloop);
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q->mainloop = mainloop;
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pa_assert_se(q->inq = pa_asyncmsgq_new(0));
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pa_assert_se(q->outq = pa_asyncmsgq_new(0));
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pa_assert_se(pa_asyncmsgq_before_poll(q->outq) == 0);
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pa_assert_se(q->io_event = mainloop->io_new(mainloop, pa_asyncmsgq_get_fd(q->outq), PA_IO_EVENT_INPUT, asyncmsgq_cb, q));
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}
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void pa_thread_mq_done(pa_thread_mq *q) {
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pa_assert(q);
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q->mainloop->io_free(q->io_event);
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q->io_event = NULL;
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pa_asyncmsgq_unref(q->inq);
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pa_asyncmsgq_unref(q->outq);
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q->inq = q->outq = NULL;
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q->mainloop = NULL;
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}
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void pa_thread_mq_install(pa_thread_mq *q) {
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pa_assert(q);
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pa_assert(!(PA_STATIC_TLS_GET(thread_mq)));
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PA_STATIC_TLS_SET(thread_mq, q);
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}
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pa_thread_mq *pa_thread_mq_get(void) {
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return PA_STATIC_TLS_GET(thread_mq);
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}
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