75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
|
|
PIP - Platform Independent Primitives
|
|
|
|
Stephan Fomenko
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "executor.h"
|
|
|
|
|
|
PIThreadPoolExecutor::PIThreadPoolExecutor(size_t corePoolSize, PIBlockingDequeue<std::function<void()>> *taskQueue_) : isShutdown_(false), taskQueue(taskQueue_) {
|
|
for (size_t i = 0; i < corePoolSize; ++i) {
|
|
PIThread * thread = new PIThread([&, i](){
|
|
auto runnable = taskQueue->poll(100, std::function<void()>());
|
|
if (runnable) {
|
|
runnable();
|
|
}
|
|
if (isShutdown_ && taskQueue->size() == 0) threadPool[i]->stop();
|
|
});
|
|
threadPool.push_back(thread);
|
|
thread->start();
|
|
}
|
|
}
|
|
|
|
|
|
bool PIThreadPoolExecutor::awaitTermination(int timeoutMs) {
|
|
PITimeMeasurer measurer;
|
|
for (size_t i = 0; i < threadPool.size(); ++i) {
|
|
int dif = timeoutMs - (int)measurer.elapsed_m();
|
|
if (dif < 0) return false;
|
|
if (!threadPool[i]->waitForFinish(dif)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
void PIThreadPoolExecutor::shutdownNow() {
|
|
isShutdown_ = true;
|
|
for (size_t i = 0; i < threadPool.size(); ++i) threadPool[i]->stop();
|
|
}
|
|
|
|
|
|
PIThreadPoolExecutor::~PIThreadPoolExecutor() {
|
|
shutdownNow();
|
|
while (threadPool.size() > 0) delete threadPool.take_back();
|
|
delete taskQueue;
|
|
}
|
|
|
|
|
|
void PIThreadPoolExecutor::execute(const std::function<void()> &runnable) {
|
|
if (!isShutdown_) taskQueue->offer(runnable);
|
|
}
|
|
|
|
|
|
volatile bool PIThreadPoolExecutor::isShutdown() const {
|
|
return isShutdown_;
|
|
}
|
|
|
|
|
|
void PIThreadPoolExecutor::shutdown() {
|
|
isShutdown_ = true;
|
|
}
|