OpenTracker

An Open Architecture for Reconfigurable Tracking based on XML | Contact

ThreadModule.cxx

Go to the documentation of this file.
00001 /* ========================================================================
00002  * Copyright (c) 2006,
00003  * Institute for Computer Graphics and Vision
00004  * Graz University of Technology
00005  * All rights reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions are
00009  * met:
00010  *
00011  * Redistributions of source code must retain the above copyright notice,
00012  * this list of conditions and the following disclaimer.
00013  *
00014  * Redistributions in binary form must reproduce the above copyright
00015  * notice, this list of conditions and the following disclaimer in the
00016  * documentation and/or other materials provided with the distribution.
00017  *
00018  * Neither the name of the Graz University of Technology nor the names of
00019  * its contributors may be used to endorse or promote products derived from
00020  * this software without specific prior written permission.
00021  *
00022  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
00023  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
00024  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00025  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
00026  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00027  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00028  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00029  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00030  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00031  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00032  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033  * ========================================================================
00034  * PROJECT: OpenTracker
00035  * ======================================================================== */
00042 /* ======================================================================= */
00043 
00044 
00045 // a trick to avoid warnings when ace includes the STL headers
00046 #ifdef WIN32
00047 #pragma warning(disable:4786)
00048 #endif
00049 
00050 #include <stdlib.h>
00051 #include <string>
00052 
00053 #include <ace/Thread.h>
00054 #include <ace/Synch.h>
00055 
00056 #include "ThreadModule.h"
00057 
00058 namespace ot {
00059 
00060     // enters a critical section. 
00061 
00062     void ThreadModule::lock()
00063     {
00064     mutex->acquire();
00065     }
00066 
00067     // leaves a critical section. 
00068 
00069     void ThreadModule::unlock()
00070     {
00071     mutex->release();
00072     }
00073 
00074     // constructor
00075         
00076     ThreadModule::ThreadModule()
00077     {
00078     mutex = new ACE_Thread_Mutex;
00079     }
00080 
00081     // destructor clears everything 
00082 
00083     ThreadModule::~ThreadModule()
00084     {
00085         delete mutex;
00086     }
00087 
00088     // starts the thread
00089 
00090     void ThreadModule::start()
00091     {
00092     thread = new ACE_thread_t;
00093     ACE_Thread::spawn((ACE_THR_FUNC)thread_func, 
00094                           this, 
00095                           THR_NEW_LWP | THR_JOINABLE,
00096                           (ACE_thread_t *)thread );
00097     }    
00098 
00099     // stops the thread and closes the module
00100 
00101     void ThreadModule::close()
00102     {
00103 #ifdef WIN32
00104     ACE_Thread::join( (ACE_thread_t*)thread );
00105 #else
00106     ACE_Thread::join( (ACE_thread_t)thread );
00107 #endif
00108     // ACE_Thread::cancel( *(ACE_thread_t *)thread );
00109         delete ((ACE_thread_t *)thread);
00110     }
00111 
00112 } // namespace ot
00113 
00114 /* 
00115  * ------------------------------------------------------------
00116  *   End of ThreadModule.cxx
00117  * ------------------------------------------------------------
00118  *   Automatic Emacs configuration follows.
00119  *   Local Variables:
00120  *   mode:c++
00121  *   c-basic-offset: 4
00122  *   eval: (c-set-offset 'substatement-open 0)
00123  *   eval: (c-set-offset 'case-label '+)
00124  *   eval: (c-set-offset 'statement 'c-lineup-runin-statements)
00125  *   eval: (setq indent-tabs-mode nil)
00126  *   End:
00127  * ------------------------------------------------------------ 
00128  */

copyright (c) 2006 Graz University of Technology