64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*
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PIP - Platform Independent Primitives
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Stephan Fomenko
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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 Lesser 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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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PIP_TESTS_EXECUTOR_H
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#define PIP_TESTS_EXECUTOR_H
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#include "piblockingdequeue.h"
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/**
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* @brief Thread pools address two different problems: they usually provide improved performance when executing large
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* numbers of asynchronous tasks, due to reduced per-task invocation overhead, and they provide a means of bounding and
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* managing the resources, including threads, consumed when executing a collection of tasks.
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*/
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class PIThreadPoolExecutor {
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public:
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explicit PIThreadPoolExecutor(size_t corePoolSize = 1, PIBlockingDequeue<std::function<void()> >* taskQueue_ = new PIBlockingDequeue<std::function<void()> >());
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virtual ~PIThreadPoolExecutor();
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/**
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* @brief Executes the given task sometime in the future. The task execute in an existing pooled thread. If the task
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* cannot be submitted for execution, either because this executor has been shutdown or because its capacity has been
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* reached.
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*
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* @param runnable not empty function for thread pool execution
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*/
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void execute(const std::function<void()>& runnable);
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void shutdownNow();
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/**
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* @brief Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be
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* accepted. Invocation has no additional effect if already shut down. This method does not wait for previously
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* submitted tasks to complete execution. Use awaitTermination to do that.
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*/
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void shutdown();
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volatile bool isShutdown() const;
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bool awaitTermination(int timeoutMs);
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private:
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volatile bool isShutdown_;
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PIBlockingDequeue<std::function<void()> >* taskQueue;
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PIVector<PIThread*> threadPool;
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};
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#endif //PIP_TESTS_EXECUTOR_H
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