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119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
//
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// NamedEvent.h
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//
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// $Id: //poco/svn/Foundation/include/Poco/NamedEvent.h#2 $
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//
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// Library: Foundation
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// Package: Processes
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// Module: NamedEvent
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//
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// Definition of the NamedEvent class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_NamedEvent_INCLUDED
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#define Foundation_NamedEvent_INCLUDED
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#include "Poco/Foundation.h"
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#if defined(POCO_OS_FAMILY_WINDOWS) && defined(POCO_WIN32_UTF8)
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#include "Poco/NamedEvent_WIN32U.h"
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#elif defined(POCO_OS_FAMILY_WINDOWS)
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#include "Poco/NamedEvent_WIN32.h"
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#elif defined(POCO_OS_FAMILY_UNIX)
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#include "Poco/NamedEvent_UNIX.h"
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#else
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#include "Poco/NamedEvent_VMS.h"
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#endif
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namespace Poco {
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class Foundation_API NamedEvent: public NamedEventImpl
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/// An NamedEvent is a global synchronization object
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/// that allows one process or thread to signal an
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/// other process or thread that a certain event
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/// has happened.
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///
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/// Unlike an Event, which itself is the unit of synchronization,
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/// a NamedEvent refers to a named operating system resource being the
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/// unit of synchronization.
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/// In other words, there can be multiple instances of NamedEvent referring
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/// to the same actual synchronization object.
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///
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/// NamedEvents are always autoresetting.
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///
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/// There should not be more than one instance of NamedEvent for
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/// a given name in a process. Otherwise, the instances may
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/// interfere with each other.
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{
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public:
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NamedEvent(const std::string& name);
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/// Creates the event.
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~NamedEvent();
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/// Destroys the event.
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void set();
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/// Signals the event.
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/// The one thread or process waiting for the event
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/// can resume execution.
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void wait();
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/// Waits for the event to become signalled.
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private:
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NamedEvent();
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NamedEvent(const NamedEvent&);
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NamedEvent& operator = (const NamedEvent&);
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};
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//
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// inlines
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//
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inline void NamedEvent::set()
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{
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setImpl();
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}
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inline void NamedEvent::wait()
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{
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waitImpl();
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}
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} // namespace Poco
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#endif // Foundation_NamedEvent_INCLUDED
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