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authorChaz Brown <iamparadox@netscape.net>2009-09-13 06:18:26 -0400
committerChaz Brown <iamparadox@netscape.net>2009-09-13 06:18:26 -0400
commita02bb96290c09658c0f54e9fa9828eafe778f079 (patch)
treeee7443cea56991c9ba56bc576d8ec8539dd079b4 /dep/include/zthread/BlockingQueue.h
parente08ddd3096660c871d1b5acc03889c9be3e8ada3 (diff)
Remove the remaining obsolete Zthread code Part3 Really this time.
--HG-- branch : trunk
Diffstat (limited to 'dep/include/zthread/BlockingQueue.h')
-rw-r--r--dep/include/zthread/BlockingQueue.h246
1 files changed, 0 insertions, 246 deletions
diff --git a/dep/include/zthread/BlockingQueue.h b/dep/include/zthread/BlockingQueue.h
deleted file mode 100644
index cf57c12cba9..00000000000
--- a/dep/include/zthread/BlockingQueue.h
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * 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 __ZTBLOCKINGQUEUE_H__
-#define __ZTBLOCKINGQUEUE_H__
-
-#include "zthread/Guard.h"
-#include "zthread/Condition.h"
-#include "zthread/Queue.h"
-
-#include <deque>
-
-namespace ZThread {
-
- /**
- * @class BlockingQueue
- * @author Eric Crahen <http://www.code-foo.com>
- * @date <2003-07-16T12:01:43-0400>
- * @version 2.3.0
- *
- * Like a LockedQueue, a BlockingQueue is a Queue implementation that provides
- * serialized access to the items added to it. It differs by causing threads
- * accessing the next() methods to block until a value becomes available.
- */
- template <class T, class LockType, typename StorageType = std::deque<T> >
- class BlockingQueue : public Queue<T>, public Lockable {
-
- //! Serialize access
- LockType _lock;
-
- //! Signaled when empty
- Condition _notEmpty;
-
- //! Storage backing the queue
- StorageType _queue;
-
- //! Cancellation flag
- volatile bool _canceled;
-
- public:
-
- //! Create a new BlockingQueue
- BlockingQueue() : _notEmpty(_lock), _canceled(false) {}
-
- //! Destroy this BlockingQueue
- virtual ~BlockingQueue() { }
-
- /**
- * @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);
-
- _notEmpty.signal();
-
- }
-
- /**
- * @see Queue::add(const T& item, unsigned long timeout)
- */
- virtual bool add(T item, unsigned long timeout) {
-
- try {
-
- Guard<LockType> g(_lock, timeout);
-
- if(_canceled)
- throw Cancellation_Exception();
-
- _queue.push_back(item);
-
- _notEmpty.signal();
-
- } catch(Timeout_Exception&) { return false; }
-
- return true;
-
- }
-
- /**
- * Get a value from this Queue. The calling thread may block indefinitely.
- *
- * @return <em>T</em> next available value
- *
- * @exception Cancellation_Exception thrown if this Queue has been canceled.
- *
- * @exception Interrupted_Exception thrown if the calling thread is interrupted
- * before a value becomes available.
- *
- * @pre The Queue should not have been canceled prior to the invocation of this function.
- * @post The value returned will have been removed from the Queue.
- *
- * @see Queue::next()
- */
- virtual T next() {
-
- Guard<LockType> g(_lock);
-
- while(_queue.empty() && !_canceled)
- _notEmpty.wait();
-
- if( _queue.empty() )
- throw Cancellation_Exception();
-
- T item = _queue.front();
- _queue.pop_front();
-
- return item;
-
- }
-
-
- /**
- * Get a value from this Queue. The calling thread may block indefinitely.
- *
- * @param timeout maximum amount of time (milliseconds) this method may block
- * the calling thread.
- *
- * @return <em>T</em> next available value
- *
- * @exception Cancellation_Exception thrown if this Queue has been canceled.
- * @exception Timeout_Exception thrown if the timeout expires before a value
- * can be retrieved.
- * @exception Interrupted_Exception thrown if the calling thread is interrupted
- * before a value becomes available.
- *
- * @pre The Queue should not have been canceled prior to the invocation of this function.
- * @post The value returned will have been removed from the Queue.
- *
- * @see Queue::next(unsigned long timeout)
- */
- virtual T next(unsigned long timeout) {
-
- Guard<LockType> g(_lock, timeout);
-
- while(_queue.empty() && !_canceled) {
- if(!_notEmpty.wait(timeout))
- throw Timeout_Exception();
- }
-
- if(_queue.empty() )
- throw Cancellation_Exception();
-
- T item = _queue.front();
- _queue.pop_front();
-
- return item;
-
- }
-
-
- /**
- * @see Queue::cancel()
- *
- * @post If threads are blocked on one of the next() functions then
- * they will be awakened with a Cancellation_Exception.
- */
- virtual void cancel() {
-
- Guard<LockType> g(_lock);
-
- _notEmpty.broadcast();
- _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();
-
- }
-
- public:
-
- virtual void acquire() {
- _lock.acquire();
- }
-
- virtual bool tryAcquire(unsigned long timeout) {
- return _lock.tryAcquire(timeout);
- }
-
- virtual void release() {
- _lock.release();
- }
-
- }; /* BlockingQueue */
-
-} // namespace ZThread
-
-#endif // __ZTBLOCKINGQUEUE_H__
-