Semaphore.cpp
Go to the documentation of this file.
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: Semaphore.cpp
10 
11  Description: Implementation of an semaphore class.
12  (For internal use only)
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 
29 #include <math.h>
30 
33 
34 namespace AVT {
35 namespace VmbAPI {
36 
37 Semaphore::Semaphore( int nInit, int nMax )
38 #ifdef WIN32
39  : m_hSemaphore( NULL )
40 #endif
41 {
42 #ifdef WIN32
43  m_hSemaphore = CreateSemaphore( NULL, nInit, nMax, NULL );
44  if( NULL == m_hSemaphore )
45  {
46  LOG_FREE_TEXT( "Could not create semaphore." );
47  throw std::bad_alloc();
48  }
49 #else
50  sem_init( &m_Semaphore, false, (unsigned int)nInit );
51 #endif
52 }
53 
55 {
56  // No compiler generated copy ctor
57 }
58 
60 {
61  // No assignment operator
62  return *this;
63 }
64 
66 {
67 #ifdef WIN32
68  CloseHandle( m_hSemaphore );
69 #else
70  sem_destroy( &m_Semaphore );
71 #endif
72 }
73 
75 {
76 #ifdef WIN32
77  WaitForSingleObject( m_hSemaphore, INFINITE );
78 #else
79  sem_wait( &m_Semaphore );
80 #endif
81 }
82 
84 {
85 #ifdef WIN32
86  ReleaseSemaphore( m_hSemaphore, 1, NULL );
87 #else
88  sem_post( &m_Semaphore );
89 #endif
90 }
91 
92 } //namespace VmbAPI
93 } //namespace AVT
#define LOG_FREE_TEXT(txt)
Definition: LoggerDefines.h:57
Semaphore(int nInit=0, int nMax=1)
Definition: Semaphore.cpp:37
Semaphore & operator=(const Semaphore &)
Definition: Semaphore.cpp:59


avt_vimba_camera
Author(s): Miquel Massot , Allied Vision Technologies
autogenerated on Wed Jun 5 2019 22:22:40