/usr/include/Poco/SynchronizedObject.h is in libpoco-dev 1.3.6p1-5+deb8u1.
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// SynchronizedObject.h
//
// $Id: //poco/1.3/Foundation/include/Poco/SynchronizedObject.h#2 $
//
// Library: Foundation
// Package: Threading
// Module: SynchronizedObject
//
// Definition of the SynchronizedObject class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef Foundation_SynchronizedObject_INCLUDED
#define Foundation_SynchronizedObject_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Mutex.h"
#include "Poco/Event.h"
namespace Poco {
class Foundation_API SynchronizedObject
/// This class aggregates a Mutex and an Event
/// and can act as a base class for all objects
/// requiring synchronization in a multithreaded
/// scenario.
{
public:
typedef Poco::ScopedLock<SynchronizedObject> ScopedLock;
SynchronizedObject();
/// Creates the object.
virtual ~SynchronizedObject();
/// Destroys the object.
void lock() const;
/// Locks the object. Blocks if the object
/// is locked by another thread.
bool tryLock() const;
/// Tries to lock the object. Returns false immediately
/// if the object is already locked by another thread
/// Returns true if the object was successfully locked.
void unlock() const;
/// Unlocks the object so that it can be locked by
/// other threads.
void notify() const;
/// Signals the object.
/// Exactly only one thread waiting for the object
/// can resume execution.
void wait() const;
/// Waits for the object to become signalled.
void wait(long milliseconds) const;
/// Waits for the object to become signalled.
/// Throws a TimeoutException if the object
/// does not become signalled within the specified
/// time interval.
bool tryWait(long milliseconds) const;
/// Waits for the object to become signalled.
/// Returns true if the object
/// became signalled within the specified
/// time interval, false otherwise.
private:
mutable Mutex _mutex;
mutable Event _event;
};
//
// inlines
//
inline void SynchronizedObject::lock() const
{
_mutex.lock();
}
inline bool SynchronizedObject::tryLock() const
{
return _mutex.tryLock();
}
inline void SynchronizedObject::unlock() const
{
_mutex.unlock();
}
inline void SynchronizedObject::notify() const
{
_event.set();
}
inline void SynchronizedObject::wait() const
{
_event.wait();
}
inline void SynchronizedObject::wait(long milliseconds) const
{
_event.wait(milliseconds);
}
inline bool SynchronizedObject::tryWait(long milliseconds) const
{
return _event.tryWait(milliseconds);
}
} // namespace Poco
#endif // Foundation_SynchronizedObject_INCLUDED
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