Condition.cpp
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1 /*=============================================================================
2  Copyright (C) 2012 Allied Vision Technologies. All Rights Reserved.
3 
4  Redistribution of this file, in original or modified form, without
5  prior written consent of Allied Vision Technologies is prohibited.
6 
7 -------------------------------------------------------------------------------
8 
9  File: Condition.cpp
10 
11  Description: Implementation of a condition class.
12  Intended for use in the implementation of Vimba CPP API.
13 
14 -------------------------------------------------------------------------------
15 
16  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
17  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF TITLE,
18  NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
24  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 
27 =============================================================================*/
28 
30 
31 namespace AVT {
32 namespace VmbAPI {
33 
35  : m_nWaiterNumber( 0 )
36  , m_nReleaseNumber( 0 )
37  , m_bLocked( true )
38 {
39  SP_SET( m_Semaphore, new Semaphore() );
40 }
41 
42 void Condition::Wait( const BasicLockable &rLockable )
43 {
44  Wait( rLockable.GetMutex() );
45 }
46 
47 void Condition::Wait( const MutexPtr &rMutex )
48 {
50 
51  SP_ACCESS( rMutex )->Unlock();
52 
53  SP_ACCESS( m_Semaphore )->Acquire();
54 
55  SP_ACCESS( rMutex) ->Lock();
56 
57  if ( m_nWaiterNumber > 0 )
58  {
60  }
61 
62  if ( m_nReleaseNumber > 0 )
63  {
65  }
66 
67  if( m_nWaiterNumber > 0
68  && m_nReleaseNumber > 0 )
69  {
70  SP_ACCESS( m_Semaphore )->Release();
71  m_bLocked = false;
72  }
73  else
74  {
75  m_bLocked = true;
76  }
77 
79  {
81  }
82 }
83 
84 void Condition::Signal( bool bSingle )
85 {
87  {
88  if( true == bSingle )
89  {
91  }
92  else
93  {
95  }
96 
97  if( true == m_bLocked )
98  {
99  SP_ACCESS( m_Semaphore )->Release();
100  m_bLocked = false;
101  }
102  }
103 }
104 
105 }} // namespace AVT::VmbAPI
AVT::VmbAPI::Condition::Wait
void Wait(const BasicLockable &rLockable)
Definition: Condition.cpp:42
AVT::VmbAPI::Condition::m_nWaiterNumber
unsigned long m_nWaiterNumber
Definition: Condition.h:44
SP_ACCESS
#define SP_ACCESS(sp)
Definition: SharedPointerDefines.h:49
AVT
Definition: AncillaryData.h:35
AVT::VmbAPI::BasicLockable::GetMutex
MutexPtr & GetMutex()
Definition: BasicLockable.cpp:48
AVT::VmbAPI::Semaphore
Definition: Semaphore.h:43
AVT::VmbAPI::Condition::Signal
void Signal(bool bSingle=false)
Definition: Condition.cpp:84
AVT::VmbAPI::Condition::m_bLocked
bool m_bLocked
Definition: Condition.h:45
AVT::VmbAPI::Condition::m_nReleaseNumber
unsigned long m_nReleaseNumber
Definition: Condition.h:43
AVT::VmbAPI::Condition::Condition
Condition()
Definition: Condition.cpp:34
AVT::VmbAPI::BasicLockable
Definition: BasicLockable.h:38
SP_SET
#define SP_SET(sp, rawPtr)
Definition: SharedPointerDefines.h:45
Condition.h


avt_vimba_camera
Author(s): Allied Vision Technologies, Miquel Massot
autogenerated on Sat Jun 3 2023 02:14:12