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-rw-r--r--dep/include/zthread/LockedQueue.h198
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diff --git a/dep/include/zthread/LockedQueue.h b/dep/include/zthread/LockedQueue.h
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--- a/dep/include/zthread/LockedQueue.h
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-/*
- * Copyright (c) 2005, Eric Crahen
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is furnished
- * to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef __ZTLOCKEDQUEUE_H__
-#define __ZTLOCKEDQUEUE_H__
-
-#include "zthread/Guard.h"
-#include "zthread/Queue.h"
-
-#include <deque>
-
-namespace ZThread {
-
- /**
- * @class LockedQueue
- * @author Eric Crahen <http://www.code-foo.com>
- * @date <2003-07-16T11:42:33-0400>
- * @version 2.3.0
- *
- * A LockedQueue is the simple Queue implementation that provides
- * serialized access to the values added to it.
- */
- template <class T, class LockType, typename StorageType=std::deque<T> >
- class LockedQueue : public Queue<T> {
-
- //! Serialize access to the Queue
- LockType _lock;
-
- //! Storage backing the queue
- StorageType _queue;
-
- //! Cancellation flag
- volatile bool _canceled;
-
- public:
-
- //! Create a LockedQueue
- LockedQueue() : _canceled(false) {}
-
- //! Destroy a LockedQueue
- virtual ~LockedQueue() { }
-
- /**
- * @see Queue::add(const T& item)
- */
- virtual void add(const T& item) {
-
- Guard<LockType> g(_lock);
-
- if(_canceled)
- throw Cancellation_Exception();
-
- _queue.push_back(item);
-
- }
-
- /**
- * @see Queue::add(const T& item, unsigned long timeout)
- */
- virtual bool add(const T& item, unsigned long timeout) {
-
- try {
-
- Guard<LockType> g(_lock, timeout);
-
- if(_canceled)
- throw Cancellation_Exception();
-
- _queue.push_back(item);
-
- } catch(Timeout_Exception&) { return false; }
-
- return true;
-
- }
-
- /**
- * @see Queue::next()
- */
- virtual T next() {
-
- Guard<LockType> g(_lock);
-
- if(_queue.empty() && _canceled)
- throw Cancellation_Exception();
-
- if(_queue.empty())
- throw NoSuchElement_Exception();
-
- T item = _queue.front();
- _queue.pop_front();
-
- return item;
-
- }
-
-
- /**
- * @see Queue::next(unsigned long timeout)
- */
- virtual T next(unsigned long timeout) {
-
- Guard<LockType> g(_lock, timeout);
-
- if(_queue.empty() && _canceled)
- throw Cancellation_Exception();
-
- if(_queue.empty())
- throw NoSuchElement_Exception();
-
- T item = _queue.front();
- _queue.pop_front();
-
- return item;
-
- }
-
- virtual T front()
- {
- Guard<LockType> g(_lock);
-
- if(_queue.empty())
- throw NoSuchElement_Exception();
-
- return _queue.front();
- }
-
- /**
- * @see Queue::cancel()
- */
- virtual void cancel() {
-
- Guard<LockType> g(_lock);
-
- _canceled = true;
-
- }
-
- /**
- * @see Queue::isCanceled()
- */
- virtual bool isCanceled() {
-
- // Faster check since the queue will not become un-canceled
- if(_canceled)
- return true;
-
- Guard<LockType> g(_lock);
-
- return _canceled;
-
- }
-
- /**
- * @see Queue::size()
- */
- virtual size_t size() {
-
- Guard<LockType> g(_lock);
- return _queue.size();
-
- }
-
- /**
- * @see Queue::size(unsigned long timeout)
- */
- virtual size_t size(unsigned long timeout) {
-
- Guard<LockType> g(_lock, timeout);
- return _queue.size();
-
- }
-
- }; /* LockedQueue */
-
-} // namespace ZThread
-
-#endif // __ZTLOCKEDQUEUE_H__
-