mirror of https://github.com/mpv-player/mpv
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include "common/common.h"
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#include "config.h"
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#include "threads.h"
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#include "timer.h"
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#if HAVE_BSD_THREAD_NAME
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#include <pthread_np.h>
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#endif
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int mpthread_mutex_init_recursive(pthread_mutex_t *mutex)
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{
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
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int r = pthread_mutex_init(mutex, &attr);
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pthread_mutexattr_destroy(&attr);
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return r;
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}
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void mpthread_set_name(const char *name)
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{
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#if HAVE_GLIBC_THREAD_NAME
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if (pthread_setname_np(pthread_self(), name) == ERANGE) {
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char tname[16] = {0}; // glibc-checked kernel limit
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strncpy(tname, name, sizeof(tname) - 1);
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pthread_setname_np(pthread_self(), tname);
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}
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#elif HAVE_BSD_THREAD_NAME
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pthread_set_name_np(pthread_self(), name);
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#elif HAVE_OSX_THREAD_NAME
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pthread_setname_np(name);
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#endif
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}
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int mp_ptwrap_check(const char *file, int line, int res)
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{
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if (res && res != ETIMEDOUT) {
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fprintf(stderr, "%s:%d: internal error: pthread result %d (%s)\n",
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file, line, res, mp_strerror(res));
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abort();
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}
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return res;
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}
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int mp_ptwrap_mutex_init(const char *file, int line, pthread_mutex_t *m,
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const pthread_mutexattr_t *attr)
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{
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pthread_mutexattr_t m_attr;
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if (!attr) {
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attr = &m_attr;
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pthread_mutexattr_init(&m_attr);
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// Force normal mutexes to error checking.
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pthread_mutexattr_settype(&m_attr, PTHREAD_MUTEX_ERRORCHECK);
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}
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int res = mp_ptwrap_check(file, line, (pthread_mutex_init)(m, attr));
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if (attr == &m_attr)
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pthread_mutexattr_destroy(&m_attr);
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return res;
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}
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int mp_ptwrap_mutex_trylock(const char *file, int line, pthread_mutex_t *m)
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{
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int res = (pthread_mutex_trylock)(m);
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if (res != EBUSY)
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mp_ptwrap_check(file, line, res);
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return res;
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}
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