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110 lines
4.2 KiB
C
110 lines
4.2 KiB
C
/*****************************************************************************
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# #
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# uStreamer - Lightweight and fast MJPG-HTTP streamer. #
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# #
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# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program 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 General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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*****************************************************************************/
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#pragma once
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#include <stdio.h>
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#include <unistd.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <pthread.h>
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#ifdef WITH_PTHREAD_NP
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# if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
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# include <pthread_np.h>
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# include <sys/param.h>
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# endif
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#endif
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#include "tools.h"
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#ifdef PTHREAD_MAX_NAMELEN_NP
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# define MAX_THREAD_NAME PTHREAD_MAX_NAMELEN_NP
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#else
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# define MAX_THREAD_NAME 16
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#endif
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#define A_THREAD_CREATE(_tid, _func, _arg) assert(!pthread_create(_tid, NULL, _func, _arg))
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#define A_THREAD_JOIN(_tid) assert(!pthread_join(_tid, NULL))
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#ifdef WITH_PTHREAD_NP
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# define A_THREAD_RENAME(_fmt, ...) { \
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char _buf[MAX_THREAD_NAME] = {0}; \
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assert(snprintf(_buf, MAX_THREAD_NAME, _fmt, ##__VA_ARGS__) > 0); \
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thread_set_name(_buf); \
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}
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#else
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# define A_THREAD_RENAME(_fmt, ...)
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#endif
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#define A_MUTEX_INIT(_mutex) assert(!pthread_mutex_init(_mutex, NULL))
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#define A_MUTEX_DESTROY(_mutex) assert(!pthread_mutex_destroy(_mutex))
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#define A_MUTEX_LOCK(_mutex) assert(!pthread_mutex_lock(_mutex))
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#define A_MUTEX_UNLOCK(_mutex) assert(!pthread_mutex_unlock(_mutex))
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#define A_COND_INIT(_cond) assert(!pthread_cond_init(_cond, NULL))
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#define A_COND_DESTROY(_cond) assert(!pthread_cond_destroy(_cond))
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#define A_COND_SIGNAL(...) assert(!pthread_cond_signal(__VA_ARGS__))
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#define A_COND_WAIT_TRUE(_var, _cond, _mutex) { while(!_var) assert(!pthread_cond_wait(_cond, _mutex)); }
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#ifdef WITH_PTHREAD_NP
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INLINE void thread_set_name(const char *name) {
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# if defined(__linux__)
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pthread_setname_np(pthread_self(), name);
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# elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
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pthread_set_name_np(pthread_self(), name);
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# elif defined(__NetBSD__)
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pthread_setname_np(pthread_self(), "%s", (void *)name);
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# else
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# error thread_set_name() not implemented, you can disable it using WITH_PTHREAD_NP=0
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# endif
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}
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#endif
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INLINE void thread_get_name(char *name) { // Always required for logging
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#ifdef WITH_PTHREAD_NP
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int retval = -1;
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# if defined(__linux__) || defined (__NetBSD__)
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retval = pthread_getname_np(pthread_self(), name, MAX_THREAD_NAME);
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# elif \
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(defined(__FreeBSD__) && defined(__FreeBSD_version) && __FreeBSD_version >= 1103500) \
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|| (defined(__OpenBSD__) && defined(OpenBSD) && OpenBSD >= 201905) \
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|| defined(__DragonFly__)
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pthread_get_name_np(pthread_self(), name, MAX_THREAD_NAME);
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if (name[0] != '\0') {
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retval = 0;
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}
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# else
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# error thread_get_name() not implemented, you can disable it using WITH_PTHREAD_NP=0
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# endif
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if (retval < 0) {
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#endif
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assert(snprintf(name, MAX_THREAD_NAME, "tid=%d", (pid_t)syscall(SYS_gettid)) > 0);
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#ifdef WITH_PTHREAD_NP
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}
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#endif
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}
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