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101 lines
2.2 KiB
101 lines
2.2 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkMutexLock.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkMutexLock.h"
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#include "vtkObjectFactory.h"
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#ifdef VTK_USE_WIN32_THREADS
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# include "vtkWindows.h"
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#endif
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vtkCxxRevisionMacro(vtkMutexLock, "$Revision: 1.23 $");
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vtkStandardNewMacro(vtkMutexLock);
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// New for the SimpleMutex
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vtkSimpleMutexLock *vtkSimpleMutexLock::New()
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{
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return new vtkSimpleMutexLock;
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}
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// Construct a new vtkMutexLock
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vtkSimpleMutexLock::vtkSimpleMutexLock()
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{
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#ifdef VTK_USE_SPROC
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init_lock( &this->MutexLock );
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#endif
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#ifdef VTK_USE_WIN32_THREADS
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this->MutexLock = CreateMutex( NULL, FALSE, NULL );
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#endif
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#ifdef VTK_USE_PTHREADS
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#ifdef VTK_HP_PTHREADS
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pthread_mutex_init(&(this->MutexLock), pthread_mutexattr_default);
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#else
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pthread_mutex_init(&(this->MutexLock), NULL);
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#endif
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#endif
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}
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// Destruct the vtkMutexVariable
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vtkSimpleMutexLock::~vtkSimpleMutexLock()
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{
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#ifdef VTK_USE_WIN32_THREADS
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CloseHandle(this->MutexLock);
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#endif
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#ifdef VTK_USE_PTHREADS
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pthread_mutex_destroy( &this->MutexLock);
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#endif
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}
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// Lock the vtkMutexLock
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void vtkSimpleMutexLock::Lock()
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{
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#ifdef VTK_USE_SPROC
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spin_lock( &this->MutexLock );
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#endif
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#ifdef VTK_USE_WIN32_THREADS
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WaitForSingleObject( this->MutexLock, INFINITE );
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#endif
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#ifdef VTK_USE_PTHREADS
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pthread_mutex_lock( &this->MutexLock);
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#endif
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}
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// Unlock the vtkMutexLock
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void vtkSimpleMutexLock::Unlock()
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{
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#ifdef VTK_USE_SPROC
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release_lock( &this->MutexLock );
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#endif
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#ifdef VTK_USE_WIN32_THREADS
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ReleaseMutex( this->MutexLock );
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#endif
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#ifdef VTK_USE_PTHREADS
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pthread_mutex_unlock( &this->MutexLock);
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#endif
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}
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void vtkMutexLock::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os, indent);
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}
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