[12177] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Oliver Scheuss |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "Thread.h" |
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| 30 | |
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| 31 | #if defined(ORXONOX_PLATFORM_WINDOWS) |
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| 32 | #include "ThreadWin.cc" |
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| 33 | #elif defined(ORXONOX_PLATFORM_UNIX) |
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| 34 | |
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| 35 | #include <cassert> |
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| 36 | #include <functional> |
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| 37 | #include <boost/thread/thread.hpp> |
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| 38 | #include <boost/thread/mutex.hpp> |
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| 39 | #include <boost/thread/thread_time.hpp> |
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| 40 | |
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| 41 | #include "util/Sleep.h" |
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| 42 | #include "command/Executor.h" |
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| 43 | |
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| 44 | namespace orxonox |
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| 45 | { |
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| 46 | boost::posix_time::millisec THREAD_WAIT_BEFORE_DETACH(1000); |
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| 47 | |
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| 48 | |
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| 49 | Thread::Thread(): |
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| 50 | executor_(nullptr), |
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| 51 | isWorking_(false), |
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| 52 | stopThread_(false) |
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| 53 | { |
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| 54 | this->executorMutex_ = new boost::mutex; |
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| 55 | this->isWorkingMutex_ = new boost::mutex; |
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| 56 | this->stopThreadMutex_ = new boost::mutex; |
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| 57 | this->workerThread_ = new boost::thread( std::bind(&Thread::threadLoop, this) ); |
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| 58 | } |
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| 59 | |
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| 60 | Thread::~Thread() |
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| 61 | { |
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| 62 | this->stopThreadMutex_->lock(); |
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| 63 | this->stopThread_ = true; |
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| 64 | this->stopThreadMutex_->unlock(); |
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| 65 | if( !this->workerThread_->timed_join( THREAD_WAIT_BEFORE_DETACH ) ) |
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| 66 | assert(0); // this should not happen |
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| 67 | delete this->workerThread_; |
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| 68 | delete this->executorMutex_; |
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| 69 | delete this->stopThreadMutex_; |
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| 70 | delete this->isWorkingMutex_; |
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| 71 | } |
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| 72 | |
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| 73 | bool Thread::isWorking() |
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| 74 | { |
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| 75 | this->isWorkingMutex_->lock(); |
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| 76 | bool isWorking = this->isWorking_; |
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| 77 | this->isWorkingMutex_->unlock(); |
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| 78 | return isWorking; |
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| 79 | } |
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| 80 | |
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| 81 | bool Thread::evaluateExecutor( const ExecutorPtr& executor ) |
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| 82 | { |
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| 83 | this->isWorkingMutex_->lock(); |
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| 84 | this->isWorking_=true; |
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| 85 | this->isWorkingMutex_->unlock(); |
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| 86 | this->executorMutex_->lock(); |
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| 87 | this->executor_ = executor; |
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| 88 | this->executorMutex_->unlock(); |
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| 89 | return true; |
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| 90 | } |
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| 91 | |
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| 92 | void Thread::threadLoop() |
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| 93 | { |
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| 94 | bool stopThread = false; |
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| 95 | while( !stopThread ) |
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| 96 | { |
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| 97 | this->executorMutex_->lock(); |
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| 98 | ExecutorPtr executor = this->executor_; |
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| 99 | this->executorMutex_->unlock(); |
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| 100 | if( executor ) |
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| 101 | { |
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| 102 | (*executor)(); |
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| 103 | this->executorMutex_->lock(); |
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| 104 | this->executor_ = nullptr; |
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| 105 | this->executorMutex_->unlock(); |
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| 106 | this->isWorkingMutex_->lock(); |
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| 107 | this->isWorking_=false; |
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| 108 | this->isWorkingMutex_->unlock(); |
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| 109 | } |
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| 110 | else |
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| 111 | { |
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| 112 | this->workerThread_->yield(); |
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| 113 | } |
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| 114 | this->stopThreadMutex_->lock(); |
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| 115 | stopThread = this->stopThread_; |
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| 116 | this->stopThreadMutex_->unlock(); |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | void Thread::waitUntilFinished() |
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| 121 | { |
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| 122 | bool stillWorking = true; |
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| 123 | while( stillWorking ) |
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| 124 | { |
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| 125 | this->isWorkingMutex_->lock(); |
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| 126 | stillWorking = this->isWorking_; |
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| 127 | this->isWorkingMutex_->unlock(); |
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| 128 | if( stillWorking ) |
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| 129 | msleep( 1 ); |
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| 130 | } |
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| 131 | } |
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| 132 | } |
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| 133 | |
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| 134 | #endif |
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