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<title>NVIDIA(R) Blast(R) SDK 1.1 Source Reference: sdk/extensions/authoring/source/VHACD/inc/vhacdMutex.h Source File</title>
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<h1>sdk/extensions/authoring/source/VHACD/inc/vhacdMutex.h</h1><a href="vhacd_mutex_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00049"></a>00049 <span class="preprocessor">#pragma once</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#ifndef VHACD_MUTEX_H</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#define VHACD_MUTEX_H</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span>
<a name="l00053"></a>00053 <span class="preprocessor">#if defined(WIN32)</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span>
<a name="l00055"></a>00055 <span class="preprocessor">#ifndef _WIN32_WINNT</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#define _WIN32_WINNT 0x400</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span><span class="preprocessor">#include <windows.h></span>
<a name="l00059"></a>00059 <span class="preprocessor">#pragma comment(lib, "winmm.lib")</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span>
<a name="l00062"></a>00062 <span class="preprocessor">#if defined(__linux__)</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="comment">//#include <sys/time.h></span>
<a name="l00064"></a>00064 <span class="preprocessor">#include <errno.h></span>
<a name="l00065"></a>00065 <span class="preprocessor">#include <time.h></span>
<a name="l00066"></a>00066 <span class="preprocessor">#include <unistd.h></span>
<a name="l00067"></a>00067 <span class="preprocessor">#define __stdcall</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span>
<a name="l00070"></a>00070 <span class="preprocessor">#if defined(__APPLE__) || defined(__linux__)</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor">#include <pthread.h></span>
<a name="l00072"></a>00072 <span class="preprocessor">#endif</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span>
<a name="l00074"></a>00074 <span class="preprocessor">#if defined(__APPLE__)</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor">#define PTHREAD_MUTEX_RECURSIVE_NP PTHREAD_MUTEX_RECURSIVE</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span>
<a name="l00078"></a><a class="code" href="vhacd_mutex_8h.html#902ded4fa4922238dc735a3591ec1105">00078</a> <span class="preprocessor">#define VHACD_DEBUG</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span>
<a name="l00080"></a>00080 <span class="comment">//#define VHACD_NDEBUG</span>
<a name="l00081"></a>00081 <span class="preprocessor">#ifdef VHACD_NDEBUG</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor">#define VHACD_VERIFY(x) (x)</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00084"></a><a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">00084</a> <span class="preprocessor"></span><span class="preprocessor">#define VHACD_VERIFY(x) assert((x))</span>
<a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span>
<a name="l00087"></a>00087 <span class="keyword">namespace </span>VHACD {
<a name="l00088"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html">00088</a> <span class="keyword">class </span><a class="code" href="class_v_h_a_c_d_1_1_mutex.html">Mutex</a> {
<a name="l00089"></a>00089 <span class="keyword">public</span>:
<a name="l00090"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html#415562703110fedfe8e643c2d9214336">00090</a> <a class="code" href="class_v_h_a_c_d_1_1_mutex.html#415562703110fedfe8e643c2d9214336">Mutex</a>(<span class="keywordtype">void</span>)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span> InitializeCriticalSection(&m_mutex);
<a name="l00094"></a>00094 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span> pthread_mutexattr_t mutexAttr; <span class="comment">// Mutex Attribute</span>
<a name="l00096"></a>00096 <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutexattr_init(&mutexAttr) == 0);
<a name="l00097"></a>00097 <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutexattr_settype(&mutexAttr, PTHREAD_MUTEX_RECURSIVE_NP) == 0);
<a name="l00098"></a>00098 <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutex_init(&m_mutex, &mutexAttr) == 0);
<a name="l00099"></a>00099 <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutexattr_destroy(&mutexAttr) == 0);
<a name="l00100"></a>00100 <span class="preprocessor">#endif</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span> }
<a name="l00102"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html#15d452744636333c9038155728aa30d2">00102</a> <a class="code" href="class_v_h_a_c_d_1_1_mutex.html#15d452744636333c9038155728aa30d2">~Mutex</a>(<span class="keywordtype">void</span>)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span> DeleteCriticalSection(&m_mutex);
<a name="l00106"></a>00106 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span> <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutex_destroy(&m_mutex) == 0);
<a name="l00108"></a>00108 <span class="preprocessor">#endif</span>
<a name="l00109"></a>00109 <span class="preprocessor"></span> }
<a name="l00110"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html#9efefb1299fc74f136abe8a545bd5b3d">00110</a> <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_mutex.html#9efefb1299fc74f136abe8a545bd5b3d">Lock</a>(<span class="keywordtype">void</span>)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span> EnterCriticalSection(&m_mutex);
<a name="l00114"></a>00114 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00115"></a>00115 <span class="preprocessor"></span> <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutex_lock(&m_mutex) == 0);
<a name="l00116"></a>00116 <span class="preprocessor">#endif</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span> }
<a name="l00118"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html#b1d735138b90c892ae83c1858628a709">00118</a> <span class="keywordtype">bool</span> <a class="code" href="class_v_h_a_c_d_1_1_mutex.html#b1d735138b90c892ae83c1858628a709">TryLock</a>(<span class="keywordtype">void</span>)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00121"></a>00121 <span class="preprocessor"></span> <span class="keywordtype">bool</span> bRet = <span class="keyword">false</span>;
<a name="l00122"></a>00122 <span class="comment">//assert(("TryEnterCriticalSection seems to not work on XP???", 0));</span>
<a name="l00123"></a>00123 bRet = TryEnterCriticalSection(&m_mutex) ? <span class="keyword">true</span> : <span class="keyword">false</span>;
<a name="l00124"></a>00124 <span class="keywordflow">return</span> bRet;
<a name="l00125"></a>00125 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00126"></a>00126 <span class="preprocessor"></span> int32_t result = pthread_mutex_trylock(&m_mutex);
<a name="l00127"></a>00127 <span class="keywordflow">return</span> (result == 0);
<a name="l00128"></a>00128 <span class="preprocessor">#endif</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span> }
<a name="l00130"></a>00130
<a name="l00131"></a><a class="code" href="class_v_h_a_c_d_1_1_mutex.html#8fb030351ef3a6d191fef6a55f7d1d68">00131</a> <span class="keywordtype">void</span> <a class="code" href="class_v_h_a_c_d_1_1_mutex.html#8fb030351ef3a6d191fef6a55f7d1d68">Unlock</a>(<span class="keywordtype">void</span>)
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span> LeaveCriticalSection(&m_mutex);
<a name="l00135"></a>00135 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00136"></a>00136 <span class="preprocessor"></span> <a class="code" href="vhacd_mutex_8h.html#d539e4f7123742216d949aabf220cfab">VHACD_VERIFY</a>(pthread_mutex_unlock(&m_mutex) == 0);
<a name="l00137"></a>00137 <span class="preprocessor">#endif</span>
<a name="l00138"></a>00138 <span class="preprocessor"></span> }
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keyword">private</span>:
<a name="l00141"></a>00141 <span class="preprocessor">#if defined(WIN32) || defined(_XBOX)</span>
<a name="l00142"></a>00142 <span class="preprocessor"></span> CRITICAL_SECTION m_mutex;
<a name="l00143"></a>00143 <span class="preprocessor">#elif defined(__APPLE__) || defined(__linux__)</span>
<a name="l00144"></a>00144 <span class="preprocessor"></span> pthread_mutex_t m_mutex;
<a name="l00145"></a>00145 <span class="preprocessor">#endif</span>
<a name="l00146"></a>00146 <span class="preprocessor"></span>};
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 <span class="preprocessor">#endif // VHACD_MUTEX_H</span>
</pre></div></div>
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