<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html><head><meta name="robots" content="noindex"> <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>ITK: itkSemaphore.h Source File</title> <link href="DoxygenStyle.css" rel="stylesheet" type="text/css"> </head><body bgcolor="#ffffff"> <!-- Section customized for INSIGHT : Tue Jul 17 01:02:45 2001 --> <center> <a href="index.html" class="qindex">Main Page</a> <a href="modules.html" class="qindex">Groups</a> <a href="namespaces.html" class="qindex">Namespace List</a> <a href="hierarchy.html" class="qindex">Class Hierarchy</a> <a href="classes.html" class="qindex">Alphabetical List</a> <a href="annotated.html" class="qindex">Compound List</a> <a href="files.html" class="qindex">File List</a> <a href="namespacemembers.html" class="qindex">Namespace Members</a> <a href="functions.html" class="qindex">Compound Members</a> <a href="globals.html" class="qindex">File Members</a> <a href="pages.html" class="qindex">Concepts</a></center> <!-- Generated by Doxygen 1.5.9 --> <div class="navpath"><a class="el" href="dir_02e23d841c198393a6e961e9a0678fff.html">Code</a> » <a class="el" href="dir_ea7fc529ede9a38b0438cf13831ae873.html">Common</a> </div> <div class="contents"> <h1>itkSemaphore.h</h1><a href="itkSemaphore_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*=========================================================================</span> <a name="l00002"></a>00002 <span class="comment"></span> <a name="l00003"></a>00003 <span class="comment"> Program: Insight Segmentation & Registration Toolkit</span> <a name="l00004"></a>00004 <span class="comment"> Module: $RCSfile: itkSemaphore.h,v $</span> <a name="l00005"></a>00005 <span class="comment"> Language: C++</span> <a name="l00006"></a>00006 <span class="comment"> Date: $Date: 2004-03-12 21:41:50 $</span> <a name="l00007"></a>00007 <span class="comment"> Version: $Revision: 1.11 $</span> <a name="l00008"></a>00008 <span class="comment"></span> <a name="l00009"></a>00009 <span class="comment"> Copyright (c) Insight Software Consortium. All rights reserved.</span> <a name="l00010"></a>00010 <span class="comment"> See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.</span> <a name="l00011"></a>00011 <span class="comment"></span> <a name="l00012"></a>00012 <span class="comment"> This software is distributed WITHOUT ANY WARRANTY; without even </span> <a name="l00013"></a>00013 <span class="comment"> the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR </span> <a name="l00014"></a>00014 <span class="comment"> PURPOSE. See the above copyright notices for more information.</span> <a name="l00015"></a>00015 <span class="comment"></span> <a name="l00016"></a>00016 <span class="comment">=========================================================================*/</span> <a name="l00017"></a>00017 <span class="preprocessor">#ifndef __itkSemaphore_h_</span> <a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define __itkSemaphore_h_</span> <a name="l00019"></a>00019 <span class="preprocessor"></span> <a name="l00020"></a>00020 <span class="preprocessor">#include "<a class="code" href="itkObjectFactory_8h.html">itkObjectFactory.h</a>"</span> <a name="l00021"></a>00021 <span class="preprocessor">#include "<a class="code" href="itkLightObject_8h.html">itkLightObject.h</a>"</span> <a name="l00022"></a>00022 <span class="preprocessor">#include "itkConfigure.h"</span> <a name="l00023"></a>00023 <span class="preprocessor">#include <string></span> <a name="l00024"></a>00024 <a name="l00025"></a>00025 <span class="preprocessor">#ifdef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="itkMutexLock_8h.html">itkMutexLock.h</a>"</span> <a name="l00027"></a>00027 <span class="preprocessor">#include <stdio.h></span> <a name="l00028"></a>00028 <span class="preprocessor">#include <sys/types.h></span> <a name="l00029"></a>00029 <span class="preprocessor">#include <sys/ipc.h></span> <a name="l00030"></a>00030 <span class="preprocessor">#include <sys/sem.h></span> <a name="l00031"></a>00031 <span class="preprocessor">#include <errno.h></span> <a name="l00032"></a>00032 <span class="preprocessor">#endif</span> <a name="l00033"></a>00033 <span class="preprocessor"></span> <a name="l00034"></a>00034 <span class="preprocessor">#ifndef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#ifdef ITK_USE_SPROC</span> <a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="itkMultiThreader_8h.html">itkMultiThreader.h</a>"</span> <a name="l00037"></a>00037 <span class="preprocessor">#include <ulocks.h></span> <a name="l00038"></a>00038 <span class="preprocessor">#endif</span> <a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#ifdef ITK_USE_PTHREADS</span> <a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#ifdef sun</span> <a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#include <synch.h></span> <a name="l00042"></a>00042 <span class="preprocessor">#else</span> <a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#include <semaphore.h></span> <a name="l00044"></a>00044 <span class="preprocessor">#endif</span> <a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00047"></a>00047 <span class="preprocessor"></span> <a name="l00048"></a>00048 <span class="preprocessor">#ifdef ITK_USE_WIN32_THREADS</span> <a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="itkWindows_8h.html">itkWindows.h</a>"</span> <a name="l00050"></a>00050 <span class="preprocessor">#endif</span> <a name="l00051"></a>00051 <span class="preprocessor"></span> <a name="l00052"></a>00052 <span class="keyword">namespace </span>itk { <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="preprocessor">#ifdef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00055"></a>00055 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">int</span> <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00056"></a>00056 <span class="preprocessor">#endif</span> <a name="l00057"></a>00057 <span class="preprocessor"></span> <a name="l00058"></a>00058 <span class="preprocessor">#ifndef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00059"></a>00059 <span class="preprocessor"></span><span class="preprocessor">#ifdef ITK_USE_SPROC</span> <a name="l00060"></a>00060 <span class="preprocessor"></span><span class="keyword">typedef</span> usema_t * <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00061"></a>00061 <span class="preprocessor">#endif</span> <a name="l00062"></a>00062 <span class="preprocessor"></span><span class="preprocessor">#ifdef ITK_USE_PTHREADS</span> <a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#ifdef sun</span> <a name="l00064"></a>00064 <span class="preprocessor"></span><span class="keyword">typedef</span> sema_t <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00065"></a>00065 <span class="preprocessor">#else</span> <a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#ifdef __APPLE__</span> <a name="l00067"></a>00067 <span class="preprocessor"></span><span class="keyword">typedef</span> sem_t *<a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00068"></a>00068 <span class="preprocessor">#else</span> <a name="l00069"></a>00069 <span class="preprocessor"></span><span class="keyword">typedef</span> sem_t <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00070"></a>00070 <span class="preprocessor">#endif</span> <a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00072"></a>00072 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00074"></a>00074 <span class="preprocessor"></span> <a name="l00075"></a>00075 <span class="preprocessor">#ifdef ITK_USE_WIN32_THREADS</span> <a name="l00076"></a>00076 <span class="preprocessor"></span><span class="keyword">typedef</span> HANDLE <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00077"></a>00077 <span class="preprocessor">#endif</span> <a name="l00078"></a>00078 <span class="preprocessor"></span> <a name="l00079"></a>00079 <span class="preprocessor">#ifndef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor">#ifndef ITK_USE_SPROC</span> <a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#ifndef ITK_USE_PTHREADS</span> <a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor">#ifndef ITK_USE_WIN32_THREADS</span> <a name="l00083"></a><a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">00083</a> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">int</span> <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a>; <a name="l00084"></a>00084 <span class="preprocessor">#endif</span> <a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00088"></a>00088 <span class="preprocessor"></span> <a name="l00112"></a><a class="code" href="classitk_1_1Semaphore.html">00112</a> <span class="keyword">class </span><a class="code" href="itkWin32Header_8h.html#faefe352c9fb4179f5a770afc70ea90f">ITKCommon_EXPORT</a> <a class="code" href="classitk_1_1Semaphore.html" title="The semaphore class is used to synchronize execution between threads.">Semaphore</a> : <span class="keyword">public</span> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">LightObject</a> <a name="l00113"></a>00113 { <a name="l00114"></a>00114 <span class="keyword">public</span>: <a name="l00116"></a><a class="code" href="classitk_1_1Semaphore.html#66225a3abd7434b130844a498d18634d">00116</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1Semaphore.html" title="The semaphore class is used to synchronize execution between threads.">Semaphore</a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>; <a name="l00117"></a><a class="code" href="classitk_1_1Semaphore.html#ca2fdf18faff8d0a43e2eea291507a2e">00117</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">LightObject</a> <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Superclass</a>; <a name="l00118"></a><a class="code" href="classitk_1_1Semaphore.html#7e91120f91a42a3343a810b3a734796f">00118</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1SmartPointer.html">SmartPointer<Self></a> <a class="code" href="classitk_1_1SmartPointer.html">Pointer</a>; <a name="l00119"></a><a class="code" href="classitk_1_1Semaphore.html#521aa32b63341b0b2495b930daf49d91">00119</a> <span class="keyword">typedef</span> <a class="code" href="classitk_1_1SmartPointer.html">SmartPointer<const Self></a> <a class="code" href="classitk_1_1SmartPointer.html">ConstPointer</a>; <a name="l00120"></a>00120 <a name="l00122"></a>00122 <a class="code" href="itkMacro_8h.html#0fdc15685afa271857c57e7cd482f30c">itkNewMacro</a>(<a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">Self</a>); <a name="l00123"></a>00123 <a name="l00125"></a>00125 <a class="code" href="itkMacro_8h.html#574c1f86661d409dd32c742307a0e96a">itkTypeMacro</a>(<a class="code" href="classitk_1_1Semaphore.html" title="The semaphore class is used to synchronize execution between threads.">Semaphore</a>, <a class="code" href="classitk_1_1LightObject.html" title="Light weight base class for most itk classes.">LightObject</a>); <a name="l00126"></a>00126 <a name="l00128"></a>00128 <span class="keywordtype">void</span> Initialize(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> value); <a name="l00129"></a>00129 <a name="l00132"></a>00132 <span class="keywordtype">void</span> Up(); <a name="l00133"></a>00133 <a name="l00139"></a>00139 <span class="keywordtype">void</span> Down(); <a name="l00140"></a>00140 <a name="l00142"></a>00142 <span class="keywordtype">void</span> Remove (); <a name="l00143"></a>00143 <a name="l00144"></a>00144 <span class="keyword">protected</span>: <a name="l00145"></a>00145 <a class="code" href="classitk_1_1Semaphore.html" title="The semaphore class is used to synchronize execution between threads.">Semaphore</a> (); <a name="l00146"></a>00146 ~<a class="code" href="classitk_1_1Semaphore.html" title="The semaphore class is used to synchronize execution between threads.">Semaphore</a>(); <a name="l00147"></a>00147 <a name="l00148"></a>00148 <span class="keyword">private</span>: <a name="l00149"></a>00149 <a name="l00150"></a>00150 <span class="preprocessor">#ifdef ITK_USE_UNIX_IPC_SEMAPHORES</span> <a name="l00151"></a>00151 <span class="preprocessor"></span> <a name="l00153"></a>00153 <span class="keyword">static</span> <span class="keywordtype">int</span> m_IPCSemaphoreKey; <a name="l00154"></a>00154 <a name="l00156"></a>00156 <span class="keyword">static</span> <a class="code" href="classitk_1_1SimpleMutexLock.html" title="Simple mutual exclusion locking class.">SimpleMutexLock</a> m_Mutex; <a name="l00157"></a>00157 <a name="l00158"></a>00158 <span class="keywordtype">int</span> UnixIpcSemaphoreCreate (<span class="keywordtype">int</span> unix_semaphore_key); <a name="l00159"></a>00159 <span class="keywordtype">void</span> UnixIpcSemaphoreRemove (<span class="keywordtype">int</span> sid); <a name="l00160"></a>00160 <span class="keywordtype">void</span> UnixIpcSemaphoreCall (<span class="keywordtype">int</span> sid, <span class="keywordtype">int</span> op); <a name="l00161"></a>00161 <span class="keywordtype">void</span> UnixIpcSemaphoreDown (<span class="keywordtype">int</span> sid); <a name="l00162"></a>00162 <span class="keywordtype">void</span> UnixIpcSemaphoreUp (<span class="keywordtype">int</span> sid); <a name="l00163"></a>00163 <span class="preprocessor">#endif</span> <a name="l00164"></a>00164 <span class="preprocessor"></span> <a name="l00165"></a>00165 <span class="keywordtype">char</span> Pad1[128]; <span class="comment">// to avoid false sharing in case of shared memory multiprocessor systems</span> <a name="l00166"></a>00166 <a class="code" href="namespaceitk.html#517f698e9b7627de51be2f8eb3ce3937">SemaphoreType</a> m_Sema; <a name="l00167"></a>00167 <span class="keywordtype">char</span> Pad2[128]; <span class="comment">// to avoid false sharing in case of shared memory multiprocessor systems</span> <a name="l00168"></a>00168 <a name="l00169"></a>00169 <span class="preprocessor">#ifdef __APPLE__</span> <a name="l00170"></a>00170 <span class="preprocessor"></span> std::string GetUniqueName(); <a name="l00171"></a>00171 <span class="keyword">static</span> <span class="keywordtype">int</span> m_SemaphoreCount; <a name="l00172"></a>00172 std::string m_SemaphoreName; <a name="l00173"></a>00173 <span class="preprocessor">#endif</span> <a name="l00174"></a>00174 <span class="preprocessor"></span> <a name="l00176"></a>00176 <span class="preprocessor">#ifdef ITK_USE_PTHREADS</span> <a name="l00177"></a>00177 <span class="preprocessor"></span> <span class="keywordtype">bool</span> m_PThreadsSemaphoreRemoved; <a name="l00178"></a>00178 <span class="preprocessor">#endif</span> <a name="l00179"></a>00179 <span class="preprocessor"></span> <a name="l00180"></a>00180 }; <a name="l00181"></a>00181 <a name="l00182"></a>00182 }<span class="comment">//itk</span> <a name="l00183"></a>00183 <a name="l00184"></a>00184 <span class="preprocessor">#endif</span> <a name="l00185"></a>00185 <span class="preprocessor"></span> </pre></div></div> <hr><address><small> Generated at Fri May 8 00:09:05 2009 for ITK by <a href="http://www.stack.nl/~dimitri/doxygen/index.html"> <img src="http://www.stack.nl/~dimitri/doxygen/doxygen.png" alt="doxygen" align="middle" border=0 width=110 height=53> </a> 1.5.9 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>, © 1997-2000</small></address> </body> </html>