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poco/Foundation/include/Poco/NamedMutex_UNIX.h
Roger Meier b0581433a7 LICENSE: add info about SPDX-License-Identifier usage and use it
fix: remove executable flag and change back to 100644 (was 100755)

Signed-off-by: Roger Meier <r.meier@siemens.com>
2014-05-14 08:38:09 +02:00

61 lines
1.2 KiB
C++

//
// NamedMutex_UNIX.h
//
// $Id: //poco/1.4/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.
//
// SPDX-License-Identifier: BSL-1.0
//
#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__) || defined(_AIX)
#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__) || defined(_AIX)
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