submitted 1.2.0

Foundation/include/Poco/NamedMutex_UNIX.h

@@ -0,0 +1,80 @@
+//
+// NamedMutex_UNIX.h
+//
+// $Id: //poco/1.2/Foundation/include/Poco/NamedMutex_UNIX.h#1 $
+//
+// Library: Foundation
+// Package: Processes
+// Module:  NamedMutex
+//
+// Definition of the NamedMutexImpl class for Unix.
+//
+// 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_NamedMutex_UNIX_INCLUDED
+#define Foundation_NamedMutex_UNIX_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__)
+#include <semaphore.h>
+#endif
+
+
+namespace Poco {
+
+
+class Foundation_API NamedMutexImpl
+{
+protected:
+	NamedMutexImpl(const std::string& name);
+	~NamedMutexImpl();
+	void lockImpl();
+	bool tryLockImpl();
+	void unlockImpl();
+	
+private:
+	std::string getFileName();
+
+	std::string _name;
+#if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__)
+	sem_t* _sem;
+#else
+	int _lockfd; // lock file descriptor
+	int _semfd;  // file used to identify semaphore
+	int _semid;  // semaphore id
+#endif
+};
+
+
+} // namespace Poco
+
+
+#endif // Foundation_NamedMutex_UNIX_INCLUDED