103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
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/*=============================================================================
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Copyright (C) 2012 Allied Vision Technologies. All Rights Reserved.
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Redistribution of this file, in original or modified form, without
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prior written consent of Allied Vision Technologies is prohibited.
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-------------------------------------------------------------------------------
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File: MutexGuard.cpp
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Description: Implementation of a mutex helper class for locking and unlocking.
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Intended for use in the implementation of Vimba CPP API.
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-------------------------------------------------------------------------------
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF TITLE,
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NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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=============================================================================*/
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#include <VimbaCPP/Source/MutexGuard.h>
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#include <VimbaCPP/Include/VimbaSystem.h>
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namespace AVT {
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namespace VmbAPI {
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MutexGuard::MutexGuard()
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: m_pMutex( NULL )
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{
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}
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MutexGuard::MutexGuard( MutexPtr &pMutex )
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{
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if ( SP_ISNULL( pMutex ))
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{
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LOG_FREE_TEXT( "No mutex passed." );
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}
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else
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{
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m_pMutex = SP_ACCESS(pMutex );
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Protect( );
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}
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}
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MutexGuard::MutexGuard( BasicLockablePtr pLockable )
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{
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if ( SP_ISNULL( pLockable ))
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{
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LOG_FREE_TEXT( "No mutex passed." );
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}
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else
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{
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m_pMutex = SP_ACCESS(SP_ACCESS(pLockable)->GetMutex());
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Protect( );
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}
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}
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MutexGuard::MutexGuard( const BasicLockable &rLockable )
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{
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m_pMutex = SP_ACCESS(rLockable.GetMutex() );
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Protect( );
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}
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MutexGuard::~MutexGuard()
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{
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Release();
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}
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void MutexGuard::Protect( )
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{
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if( m_pMutex == NULL )
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{
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LOG_FREE_TEXT( "No mutex passed." );
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return;
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}
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m_pMutex->Lock();
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}
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bool MutexGuard::Release()
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{
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if( m_pMutex == NULL)
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{
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return false;
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}
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m_pMutex ->Unlock();
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m_pMutex = NULL;
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return true;
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}
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}} //namespace AVT::VmbAPI
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