86 lines
1.6 KiB
C++
86 lines
1.6 KiB
C++
/*
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* Copyright (C) Roland Jax 2012-2014 <roland.jax@liwest.at>
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*
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* This file is part of ebusd.
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*
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* ebusd is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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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*
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* ebusd 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with ebusd. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef WQUEUE_H_
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#define WQUEUE_H_
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#include <pthread.h>
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#include <list>
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template <typename T> class WQueue
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{
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public:
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WQueue()
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{
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pthread_mutex_init(&m_mutex, NULL);
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pthread_cond_init(&m_condv, NULL);
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}
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~WQueue()
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{
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pthread_mutex_destroy(&m_mutex);
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pthread_cond_destroy(&m_condv);
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}
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void add(T item)
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{
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pthread_mutex_lock(&m_mutex);
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m_queue.push_back(item);
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pthread_cond_signal(&m_condv);
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pthread_mutex_unlock(&m_mutex);
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}
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T remove()
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{
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pthread_mutex_lock(&m_mutex);
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while (m_queue.size() == 0)
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pthread_cond_wait(&m_condv, &m_mutex);
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T item = m_queue.front();
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m_queue.pop_front();
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pthread_mutex_unlock(&m_mutex);
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return item;
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}
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int size()
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{
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pthread_mutex_lock(&m_mutex);
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int size = m_queue.size();
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pthread_mutex_unlock(&m_mutex);
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return size;
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}
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private:
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std::list<T> m_queue;
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pthread_mutex_t m_mutex;
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pthread_cond_t m_condv;
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};
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#endif // WQUEUE_H_
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