70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/*! @file pithreadpoolloop.h
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* @brief Thread pool loop
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*
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* This file declare thread class and some wait functions
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*/
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/*
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PIP - Platform Independent Primitives
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Thread pool loop
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Ivan Pelipenko peri4ko@yandex.ru
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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 PITHREADPOOLLOOP_H
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#define PITHREADPOOLLOOP_H
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#include "pivector.h"
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class PIThread;
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class PIP_EXPORT PIThreadPoolLoop {
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public:
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//! Contructs thread pool with threads count "thread_cnt".
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//! If "thread_cnt" = -1 then system processors count used
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PIThreadPoolLoop(int thread_cnt = -1);
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virtual ~PIThreadPoolLoop();
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//! Set threads function to "f" with format [](int){...}
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void setFunction(std::function<void(int)> f);
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//! Wait for all threads stop
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void wait();
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//! Start functions execution with integer argument range
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//! from "index_start" to "index_start + index_count - 1"
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void start(int index_start, int index_count);
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//! Start functions execution with integer argument range
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//! from "index_start" to "index_start + index_count - 1"
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//! and wait for finish
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void exec(int index_start, int index_count);
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//! Start functions "f" execution with integer argument range
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//! from "index_start" to "index_start + index_count - 1"
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//! and wait for finish
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void exec(int index_start, int index_count, std::function<void(int)> f);
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private:
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PIVector<PIThread * > threads;
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std::function<void(int)> func;
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std::atomic_int counter;
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};
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#endif
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