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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkMutexLock.cxx,v $
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 "vtkMutexLock.h"
#include "vtkObjectFactory.h"
#ifdef VTK_USE_WIN32_THREADS
# include "vtkWindows.h"
#endif
vtkCxxRevisionMacro(vtkMutexLock, "$Revision: 1.23 $");
vtkStandardNewMacro(vtkMutexLock);
// New for the SimpleMutex
vtkSimpleMutexLock *vtkSimpleMutexLock::New()
{
return new vtkSimpleMutexLock;
}
// Construct a new vtkMutexLock
vtkSimpleMutexLock::vtkSimpleMutexLock()
{
#ifdef VTK_USE_SPROC
init_lock( &this->MutexLock );
#endif
#ifdef VTK_USE_WIN32_THREADS
this->MutexLock = CreateMutex( NULL, FALSE, NULL );
#endif
#ifdef VTK_USE_PTHREADS
#ifdef VTK_HP_PTHREADS
pthread_mutex_init(&(this->MutexLock), pthread_mutexattr_default);
#else
pthread_mutex_init(&(this->MutexLock), NULL);
#endif
#endif
}
// Destruct the vtkMutexVariable
vtkSimpleMutexLock::~vtkSimpleMutexLock()
{
#ifdef VTK_USE_WIN32_THREADS
CloseHandle(this->MutexLock);
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_destroy( &this->MutexLock);
#endif
}
// Lock the vtkMutexLock
void vtkSimpleMutexLock::Lock()
{
#ifdef VTK_USE_SPROC
spin_lock( &this->MutexLock );
#endif
#ifdef VTK_USE_WIN32_THREADS
WaitForSingleObject( this->MutexLock, INFINITE );
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_lock( &this->MutexLock);
#endif
}
// Unlock the vtkMutexLock
void vtkSimpleMutexLock::Unlock()
{
#ifdef VTK_USE_SPROC
release_lock( &this->MutexLock );
#endif
#ifdef VTK_USE_WIN32_THREADS
ReleaseMutex( this->MutexLock );
#endif
#ifdef VTK_USE_PTHREADS
pthread_mutex_unlock( &this->MutexLock);
#endif
}
void vtkMutexLock::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
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