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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/**
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* @file thread_pool.h
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*
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* @brief Thread-pool with some threads processing the job_queue
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef THREAD_POOL_H_
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#define THREAD_POOL_H_
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#include <stdlib.h>
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#include "types.h"
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/**
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* @brief A thread_pool contains a pool of threads processing the job queue
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*
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* Current implementation uses as many threads as specified in constructor.
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* A more improved version would dynamically increase thread count if necessary...
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*/
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typedef struct thread_pool_s thread_pool_t;
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struct thread_pool_s {
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/**
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* @brief return currently active threads
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*
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* @param thread_pool thread_pool_t object
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* @param size [out] actual size of pool
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* @return SUCCESS Thread flagged for termination
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*/
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status_t (*get_pool_size) (thread_pool_t *thread_pool, size_t *pool_size);
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/**
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* @brief destroy pool
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*
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* sends cancellation request to all threads and AWAITS their termination.
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*
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* @param thread_pool thread_pool_t object
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* @return SUCCESS
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*/
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status_t (*destroy) (thread_pool_t *thread_pool);
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};
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/**
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* @brief Create the thread pool using using pool_size of threads
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*
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* @param pool_size desired pool size
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* @return NULL when no thread could be created
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* thread_pool when one ore more threads could be created
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*/
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thread_pool_t *thread_pool_create(size_t pool_size);
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#endif /*THREAD_POOL_H_*/
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