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127 lines
4.8 KiB
C
127 lines
4.8 KiB
C
/*****************************************************************************
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# #
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# uStreamer - Lightweight and fast MJPEG-HTTP streamer. #
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# #
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# Copyright (C) 2018-2022 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 US_MAX_THREAD_NAME ((size_t)(PTHREAD_MAX_NAMELEN_NP))
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#else
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# define US_MAX_THREAD_NAME ((size_t)16)
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#endif
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#define US_THREAD_CREATE(x_tid, x_func, x_arg) assert(!pthread_create(&(x_tid), NULL, (x_func), (x_arg)))
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#define US_THREAD_JOIN(x_tid) assert(!pthread_join((x_tid), NULL))
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#ifdef WITH_PTHREAD_NP
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# define US_THREAD_RENAME(x_fmt, ...) { \
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char m_new_tname_buf[US_MAX_THREAD_NAME] = {0}; \
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assert(snprintf(m_new_tname_buf, US_MAX_THREAD_NAME, (x_fmt), ##__VA_ARGS__) > 0); \
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us_thread_set_name(m_new_tname_buf); \
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}
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#else
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# define US_THREAD_RENAME(_fmt, ...)
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#endif
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#define US_MUTEX_INIT(x_mutex) assert(!pthread_mutex_init(&(x_mutex), NULL))
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#define US_MUTEX_DESTROY(x_mutex) assert(!pthread_mutex_destroy(&(x_mutex)))
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#define US_MUTEX_LOCK(x_mutex) assert(!pthread_mutex_lock(&(x_mutex)))
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#define US_MUTEX_UNLOCK(x_mutex) assert(!pthread_mutex_unlock(&(x_mutex)))
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#define US_COND_INIT(x_cond) assert(!pthread_cond_init(&(x_cond), NULL))
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#define US_COND_DESTROY(x_cond) assert(!pthread_cond_destroy(&(x_cond)))
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#define US_COND_SIGNAL(x_cond) assert(!pthread_cond_signal(&(x_cond)))
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#define US_COND_BROADCAST(x_cond) assert(!pthread_cond_broadcast(&(x_cond)))
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#define US_COND_WAIT_FOR(x_var, x_cond, x_mutex) { while(!(x_var)) assert(!pthread_cond_wait(&(x_cond), &(x_mutex))); }
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#ifdef WITH_PTHREAD_NP
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INLINE void us_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 us_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 us_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, US_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, US_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 us_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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#if defined(__linux__)
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const pid_t tid = syscall(SYS_gettid);
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#elif defined(__FreeBSD__)
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const pid_t tid = syscall(SYS_thr_self);
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#elif defined(__OpenBSD__)
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const pid_t tid = syscall(SYS_getthrid);
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#elif defined(__NetBSD__)
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const pid_t tid = syscall(SYS__lwp_self);
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#elif defined(__DragonFly__)
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const pid_t tid = syscall(SYS_lwp_gettid);
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#else
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const pid_t tid = 0; // Makes cppcheck happy
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# warning gettid() not implemented
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#endif
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assert(snprintf(name, US_MAX_THREAD_NAME, "tid=%d", tid) > 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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