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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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"
#include "ITKDeprecatedExport.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 ITKDeprecated
*/
class ITKDeprecated_EXPORT SimpleMutexLock
{
public:
/** Standard class type aliases. */
using Self = SimpleMutexLock;
/** 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 held 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 ITKDeprecated
*/
class ITKDeprecated_EXPORT MutexLock : public Object
{
public:
ITK_DISALLOW_COPY_AND_MOVE(MutexLock);
/** Standard class type aliases. */
using Self = MutexLock;
using Superclass = Object;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(MutexLock);
/** Lock the itkMutexLock. */
void
Lock();
/** Non-blocking Lock access.
\return bool - true if lock is captured, false if it was already held by someone else.
*/
bool
TryLock();
/** Unlock the MutexLock. */
void
Unlock();
protected:
MutexLock() = default;
~MutexLock() override = default;
SimpleMutexLock m_SimpleMutexLock{};
void
PrintSelf(std::ostream & os, Indent indent) const override;
};
inline void
MutexLock::Lock()
{
m_SimpleMutexLock.Lock();
}
inline bool
MutexLock::TryLock()
{
return m_SimpleMutexLock.TryLock();
}
inline void
MutexLock::Unlock()
{
m_SimpleMutexLock.Unlock();
}
} // namespace itk
#endif
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