blob: 29bfa97253435c3206020eb44b73beaeeb461779 (
plain)
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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// **********************************************************************
//
// Copyright (c) 2003-2015 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_UTIL_MUTEX_PTR_LOCK_H
#define ICE_UTIL_MUTEX_PTR_LOCK_H
#include <IceUtil/Config.h>
#include <IceUtil/ThreadException.h>
namespace IceUtilInternal
{
template<class T>
class MutexPtrLock
{
public:
MutexPtrLock<T>(const T* mutex) :
_mutex(mutex),
_acquired(false)
{
if(_mutex)
{
_mutex->lock();
_acquired = true;
}
}
~MutexPtrLock<T>()
{
if(_mutex && _acquired)
{
_mutex->unlock();
}
}
void acquire() const
{
if(_mutex)
{
_mutex->lock();
_acquired = true;
}
}
void release() const
{
if(_mutex)
{
if(!_acquired)
{
throw IceUtil::ThreadLockedException(__FILE__, __LINE__);
}
_mutex->unlock();
_acquired = false;
}
}
bool acquired() const
{
return _acquired;
}
private:
// Not implemented; prevents accidental use.
//
MutexPtrLock<T>(const MutexPtrLock<T>&);
MutexPtrLock<T>& operator=(const MutexPtrLock<T>&);
const T* _mutex;
mutable bool _acquired;
};
} // End namespace IceUtilInternal
#endif
|
