aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/poco/Foundation/include/Poco/ScopedUnlock.h
blob: 1342dbcb93da1465489d8cf76926a39775a34532 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
// 
// ScopedUnlock.h 
// 
// Library: Foundation 
// Package: Threading 
// Module:  Mutex 
// 
// Definition of the ScopedUnlock template class. 
// 
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH. 
// and Contributors. 
// 
// SPDX-License-Identifier:	BSL-1.0 
// 
 
 
#ifndef Foundation_ScopedUnlock_INCLUDED 
#define Foundation_ScopedUnlock_INCLUDED 
 
 
#include "Poco/Foundation.h" 
 
 
namespace Poco { 
 
 
template <class M> 
class ScopedUnlock 
	/// A class that simplifies thread synchronization 
	/// with a mutex. 
	/// The constructor accepts a Mutex and unlocks it. 
	/// The destructor locks the mutex. 
{ 
public: 
	inline ScopedUnlock(M& mutex, bool unlockNow = true): _mutex(mutex) 
	{ 
		if (unlockNow) 
			_mutex.unlock(); 
	} 
	inline ~ScopedUnlock() 
	{ 
		try 
		{ 
			_mutex.lock(); 
		} 
		catch (...) 
		{ 
			poco_unexpected(); 
		} 
	} 
 
private: 
	M& _mutex; 
 
	ScopedUnlock(); 
	ScopedUnlock(const ScopedUnlock&); 
	ScopedUnlock& operator = (const ScopedUnlock&); 
}; 
 
 
} // namespace Poco 
 
 
#endif // Foundation_ScopedUnlock_INCLUDED