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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2008 by Eran Ifrah
// file name : sync_queue.h
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#ifndef SYNC_QUEUE_H
#define SYNC_QUEUE_H
#include "wx/thread.h"
#include <deque>
#ifdef WXMAKINGDLL_LE_SDK
# define WXDLLIMPEXP_LE_SDK WXEXPORT
#elif defined(WXUSINGDLL_LE_SDK)
# define WXDLLIMPEXP_LE_SDK WXIMPORT
#else /* not making nor using FNB as DLL */
# define WXDLLIMPEXP_LE_SDK
#endif // WXMAKINGDLL_LE_SDK
/**
* A thread safe queue implementation
*/
template <class T> class WXDLLIMPEXP_LE_SDK SyncQueue {
std::deque<T> m_queue;
wxCriticalSection m_cs;
public:
SyncQueue(){}
virtual ~SyncQueue(){
wxCriticalSectionLocker lk(m_cs);
m_queue.clear();
}
/**
* Add element to the top of the queue
*/
void PushFront(T element) {
wxCriticalSectionLocker lk(m_cs);
m_queue.push_front(element);
}
/**
* pop element from the top of the queue
*/
T PopFront(){
wxCriticalSectionLocker lk(m_cs);
if( m_queue.empty() ){
return NULL;
}
T e = m_queue.front();
m_queue.pop_front();
return e;
}
/**
* Add element to the end of the queue
*/
void PushBack(T element) {
wxCriticalSectionLocker lk(m_cs);
m_queue.push_back(element);
}
/**
* pop element from the end of the queue
*/
T PopBack(){
wxCriticalSectionLocker lk(m_cs);
if( m_queue.empty() ){
return NULL;
}
T e = m_queue.back();
m_queue.pop_back();
return e;
}
/**
* Return number of elements on the queue
*/
size_t GetCount() {
wxCriticalSectionLocker lk(m_cs);
return m_queue.size();
}
/**
* Clear the queue - remove all elements from the queue
*/
void Clear() {
wxCriticalSectionLocker lk(m_cs);
return m_queue.clear();
}
};
#endif // SYNC_QUEUE_H
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