blob: 334ea1ae99d791b891cb72391895308fc4405971 (
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
|
// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice-E is licensed to you under the terms described in the
// ICEE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceE/StaticMutex.h>
#ifdef _WIN32
void IceUtil::StaticMutex::initialize() const
{
//
// First we create the new critical section
//
CRITICAL_SECTION* newCriticalSection = new CRITICAL_SECTION;
InitializeCriticalSection(newCriticalSection);
//
// Then assign it to _mutex
// Note that Windows performs a full memory barrier before the assignment;
// this ensures we write the initialized critical section before we write _mutex.
//
if(InterlockedCompareExchangePointer(reinterpret_cast<void**>(&_mutex), newCriticalSection, 0) != 0)
{
//
// Another thread was doing the same thing
//
DeleteCriticalSection(newCriticalSection);
delete newCriticalSection;
}
//
// This implementation does not attempt to clean up the initialized and assigned critical sections:
// they leak
//
}
#endif
IceUtil::StaticMutex IceUtil::globalMutex = ICE_STATIC_MUTEX_INITIALIZER;
|
