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
|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkCriticalSection.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSimpleCriticalSection.h"
void vtkSimpleCriticalSection::Init()
{
#ifdef VTK_USE_SPROC
init_lock( &this->CritSec );
#endif
#ifdef VTK_USE_WIN32_THREADS
//this->MutexLock = CreateMutex( NULL, FALSE, NULL );
InitializeCriticalSection(&this->CritSec);
#endif
#ifdef VTK_USE_PTHREADS
#ifdef VTK_HP_PTHREADS
pthread_mutex_init(&(this->CritSec), pthread_mutexattr_default);
#else
pthread_mutex_init(&(this->CritSec), NULL);
#endif
#endif
}
// Destruct the vtkMutexVariable
vtkSimpleCriticalSection::~vtkSimpleCriticalSection()
{
#ifdef VTK_USE_WIN32_THREADS
//CloseHandle(this->MutexLock);
DeleteCriticalSection(&this->CritSec);
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_destroy( &this->CritSec);
#endif
}
// Lock the vtkCriticalSection
void vtkSimpleCriticalSection::Lock()
{
#ifdef VTK_USE_SPROC
spin_lock( &this->CritSec );
#endif
#ifdef VTK_USE_WIN32_THREADS
//WaitForSingleObject( this->MutexLock, INFINITE );
EnterCriticalSection(&this->CritSec);
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_lock( &this->CritSec);
#endif
}
// Unlock the vtkCriticalSection
void vtkSimpleCriticalSection::Unlock()
{
#ifdef VTK_USE_SPROC
release_lock( &this->CritSec );
#endif
#ifdef VTK_USE_WIN32_THREADS
//ReleaseMutex( this->MutexLock );
LeaveCriticalSection(&this->CritSec);
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_unlock( &this->CritSec);
#endif
}
|
