1//
2// NamedMutex_UNIX.h
3//
4// Library: Foundation
5// Package: Processes
6// Module: NamedMutex
7//
8// Definition of the NamedMutexImpl class for Unix.
9//
10// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
11// and Contributors.
12//
13// SPDX-License-Identifier: BSL-1.0
14//
15
16
17#ifndef Foundation_NamedMutex_UNIX_INCLUDED
18#define Foundation_NamedMutex_UNIX_INCLUDED
19
20
21#include "Poco/Foundation.h"
22#include <sys/types.h>
23#include <sys/stat.h>
24#if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX) || defined(__EMSCRIPTEN__)
25#include <semaphore.h>
26#endif
27
28
29namespace Poco {
30
31
32class Foundation_API NamedMutexImpl
33{
34protected:
35 NamedMutexImpl(const std::string& name);
36 ~NamedMutexImpl();
37 void lockImpl();
38 bool tryLockImpl();
39 void unlockImpl();
40
41private:
42 std::string getFileName();
43
44 std::string _name;
45#if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX) || defined(__EMSCRIPTEN__)
46 sem_t* _sem;
47#else
48 int _semid; // semaphore id
49 bool _owned;
50#endif
51};
52
53
54} // namespace Poco
55
56
57#endif // Foundation_NamedMutex_UNIX_INCLUDED
58