/*************************************************************************/ /* rw_lock_posix.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED) #include "rw_lock_posix.h" #include "error_macros.h" #include "os/memory.h" #include <stdio.h> void RWLockPosix::read_lock() { int err = pthread_rwlock_rdlock(&rwlock); if (err != 0) { perror("wtf: "); } ERR_FAIL_COND(err != 0); } void RWLockPosix::read_unlock() { pthread_rwlock_unlock(&rwlock); } Error RWLockPosix::read_try_lock() { if (pthread_rwlock_tryrdlock(&rwlock) != 0) { return ERR_BUSY; } else { return OK; } } void RWLockPosix::write_lock() { int err = pthread_rwlock_wrlock(&rwlock); ERR_FAIL_COND(err != 0); } void RWLockPosix::write_unlock() { pthread_rwlock_unlock(&rwlock); } Error RWLockPosix::write_try_lock() { if (pthread_rwlock_trywrlock(&rwlock) != 0) { return ERR_BUSY; } else { return OK; } } RWLock *RWLockPosix::create_func_posix() { return memnew(RWLockPosix); } void RWLockPosix::make_default() { create_func = create_func_posix; } RWLockPosix::RWLockPosix() { //rwlock=PTHREAD_RWLOCK_INITIALIZER; fails on OSX pthread_rwlock_init(&rwlock, NULL); } RWLockPosix::~RWLockPosix() { pthread_rwlock_destroy(&rwlock); } #endif