/usr/include/ITK-4.9/itkMutexLock.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
/*=========================================================================
*
* Portions of this file are subject to the VTK Toolkit Version 3 copyright.
*
* Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
*
* For complete copyright, license and disclaimer of warranty information
* please refer to the NOTICE file at the top of the ITK source tree.
*
*=========================================================================*/
#ifndef itkMutexLock_h
#define itkMutexLock_h
#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkThreadSupport.h"
namespace itk
{
/** \class SimpleMutexLock
* \brief Simple mutual exclusion locking class.
* SimpleMutexLock allows the locking of variables which are accessed
* through different threads. This header file also defines
* SimpleMutexLock which is not a subclass of Object.
*
* \ingroup OSSystemObjects
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT SimpleMutexLock
{
public:
/** Standard class typedefs. */
typedef SimpleMutexLock Self;
/** Constructor and destructor left public purposely. */
SimpleMutexLock();
virtual ~SimpleMutexLock();
/** Methods for creation and destruction through the object factory. */
static SimpleMutexLock * New();
void Delete() { delete this; }
/** Used for debugging and other run-time purposes. */
virtual const char * GetNameOfClass() { return "itkSimpleMutexLock"; }
/** Lock the MutexLock. */
void Lock();
/** Non-blocking Lock access.
\return bool - true if lock is captured, false if it was already heald by someone else.
*/
bool TryLock();
/** Unlock the MutexLock. */
void Unlock();
/** Access the MutexType member variable from outside this class */
MutexType & GetMutexLock()
{
return m_MutexLock;
}
MutexType GetMutexLock() const
{
return *( const_cast< MutexType * >( &m_MutexLock ) );
}
protected:
MutexType m_MutexLock;
};
/** \class MutexLock
* \brief Mutual exclusion locking class.
*
* MutexLock allows the locking of variables which are accessed
* through different threads. This header file also defines
* SimpleMutexLock which is not a subclass of itkObject.
*
* \ingroup OSSystemObjects
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT MutexLock:public Object
{
public:
/** Standard class typedefs. */
typedef MutexLock Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation. */
itkNewMacro(Self);
/** Run-time information. */
itkTypeMacro(MutexLock, Object);
/** Lock the itkMutexLock. */
void Lock();
/** Non-blocking Lock access.
\return bool - true if lock is captured, false if it was already heald by someone else.
*/
bool TryLock();
/** Unlock the MutexLock. */
void Unlock();
protected:
MutexLock() {}
~MutexLock() {}
SimpleMutexLock m_SimpleMutexLock;
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
MutexLock(const Self &) ITK_DELETE_FUNCTION;
void operator=(const Self &) ITK_DELETE_FUNCTION;
};
inline void MutexLock::Lock()
{
m_SimpleMutexLock.Lock();
}
inline bool MutexLock::TryLock()
{
return m_SimpleMutexLock.TryLock();
}
inline void MutexLock::Unlock()
{
m_SimpleMutexLock.Unlock();
}
} //end itk namespace
#endif
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