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60695e3d84
Bug 96741 shows a case where an assertion is hit, because pa_asyncq_new() failed due to running out of file descriptors. pa_asyncq_new() is used in only one place (not counting the call in asyncq-test): pa_asyncmsgq_new(). Now pa_asyncmsgq_new() can fail too, which requires error handling in many places. One of those places is pa_thread_mq_init(), which can now fail too, and that needs additional error handling in many more places. Luckily there weren't any places where adding better error handling wouldn't have been easy, so there are many changes in this patch, but they are not complicated. BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=96741
57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
#ifndef foopulsethreadmqhfoo
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#define foopulsethreadmqhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2006 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, see <http://www.gnu.org/licenses/>.
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***/
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#include <pulse/mainloop-api.h>
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#include <pulsecore/asyncmsgq.h>
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#include <pulsecore/rtpoll.h>
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/* Two way communication between a thread and a mainloop. Before the
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* thread is started a pa_thread_mq should be initialized and than
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* attached to the thread using pa_thread_mq_install(). */
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typedef struct pa_thread_mq {
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pa_mainloop_api *main_mainloop;
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pa_mainloop_api *thread_mainloop;
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pa_asyncmsgq *inq, *outq;
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pa_io_event *read_main_event, *write_main_event;
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pa_io_event *read_thread_event, *write_thread_event;
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} pa_thread_mq;
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int pa_thread_mq_init(pa_thread_mq *q, pa_mainloop_api *mainloop, pa_rtpoll *rtpoll);
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int pa_thread_mq_init_thread_mainloop(pa_thread_mq *q, pa_mainloop_api *main_mainloop, pa_mainloop_api *thread_mainloop);
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void pa_thread_mq_done(pa_thread_mq *q);
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/* Install the specified pa_thread_mq object for the current thread */
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void pa_thread_mq_install(pa_thread_mq *q);
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/* Return the pa_thread_mq object that is set for the current thread */
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pa_thread_mq *pa_thread_mq_get(void);
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/* Verify that we are in control context (aka 'main context'). */
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#define pa_assert_ctl_context(s) \
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pa_assert(!pa_thread_mq_get())
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/* Verify that we are in IO context (aka 'thread context'). */
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#define pa_assert_io_context(s) \
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pa_assert(pa_thread_mq_get())
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#endif
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