Source/Base/Threading/OSGCondVar.inl

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  38
  39 OSG_BEGIN_NAMESPACE
  40
  41 #if defined (OSG_USE_PTHREADS)
  42
  43 /*------------------------------- CondVar ---------------------------------*/
  44
  45 inline
  46 void PThreadCondVarBase::acquire(void)
  47 {
  48     pthread_mutex_lock(&(_pLowLevelLock));
  49 }
  50
  51 inline
  52 void PThreadCondVarBase::release(void)
  53 {
  54     pthread_mutex_unlock(&(_pLowLevelLock));
  55 }
  56
  57 inline
  58 bool PThreadCondVarBase::request(void)
  59 {
  60     return (pthread_mutex_trylock(&(_pLowLevelLock)) != EBUSY);
  61 }
  62
  63 inline
  64 void PThreadCondVarBase::signal()
  65 {
  66     pthread_cond_signal(&(_pLowLevelCondVar));
  67 }
  68
  69 inline
  70 void PThreadCondVarBase::broadcast()
  71 {
  72     pthread_cond_broadcast(&(_pLowLevelCondVar));
  73 }
  74
  75 #endif /* OSG_USE_PTHREADS */
  76
  77
  78 #if defined (OSG_USE_SPROC)
  79
  80 /*------------------------------- CondVar ---------------------------------*/
  81
  82 inline
  83 void SprocCondVarBase::acquire(void)
  84 {
  85 #ifdef OSG_SPROC_USE_LOCK
  86     if(_pLowLevelLock != NULL)
  87         ussetlock(_pLowLevelLock);
  88 #else
  89     if(_pLowLevelSema != NULL)
  90         uspsema(_pLowLevelSema);
  91 #endif
  92 }
  93
  94 inline
  95 void SprocCondVarBase::release(void)
  96 {
  97 #ifdef OSG_SPROC_USE_LOCK
  98     if(_pLowLevelLock != NULL)
  99         usunsetlock(_pLowLevelLock);
 100 #else
 101     if(_pLowLevelSema != NULL)
 102         usvsema(_pLowLevelSema);
 103 #endif
 104 }
 105
 106 inline
 107 bool SprocCondVarBase::request(void)
 108 {
 109     bool  returnValue = false;
 110     Int32 rc          = 0;
 111
 112 #ifdef OSG_SPROC_USE_LOCK
 113     if(_pLowLevelLock != NULL)
 114         rc = uscsetlock(_pLowLevelLock, 0);
 115 #else
 116     if(_pLowLevelSema != NULL)
 117         rc = uscpsema(_pLowLevelSema);
 118 #endif
 119
 120     returnValue = (rc == 1);
 121
 122     return returnValue;
 123 }
 124
 125 inline
 126 bool SprocCondVarBase::wait(const Int32 timeToWait)
 127 {
 128    OSG_ASSERT(false && "Not implemented.");
 129 }
 130
 131 inline
 132 void SprocCondVarBase::signal()
 133 {
 134    OSG_ASSERT(false && "Not implemented.");
 135 }
 136
 137 inline
 138 void SprocCondVarBase::broadcast()
 139 {
 140    OSG_ASSERT(false && "Not implemented.");
 141 }
 142
 143 #endif /* OSG_USE_SPROC */
 144
 145
 146 #if defined (OSG_USE_WINTHREADS)
 147
 148 /*------------------------------- CondVar ---------------------------------*/
 149
 150 inline
 151 void WinThreadCondVarBase::acquire(void)
 152 {
 153 #if defined(OSG_GV_BETA) && defined(OSG_DBG_LCK)
 154     fprintf(stderr, "CondVar::acquire %p\n", this);
 155 #endif
 156
 157     WaitForSingleObject(_pMutex, INFINITE);
 158 }
 159
 160 inline
 161 void WinThreadCondVarBase::release(void)
 162 {
 163 #if defined(OSG_GV_BETA) && defined(OSG_DBG_LCK)
 164     fprintf(stderr, "CondVar::release %p\n", this);
 165 #endif
 166
 167     ReleaseMutex(_pMutex);
 168 }
 169
 170 inline
 171 bool WinThreadCondVarBase::request(void)
 172 {
 173     DWORD rc;
 174     rc = WaitForSingleObject(_pMutex, 0);
 175
 176     if(rc == WAIT_OBJECT_0)
 177     {
 178         return true;
 179     }
 180     else
 181     {
 182         return false;
 183     }
 184 }
 185
 186 #endif /* OSG_USE_WINTHREADS */
 187
 188
 189
 190
 191 inline
 192 CondVar::ObjTransitPtr CondVar::create(void)
 193 {
 194     return CondVar::get(NULL, false);
 195 }
 196
 197 inline
 198 const MPCondVarType &CondVar::getClassType(void)
 199 {
 200     return _type;
 201 }
 202
 203 /*------------------------------- CondVar ---------------------------------*/
 204
 205 inline
 206 void CondVar::acquire(void)
 207 {
 208     Inherited::acquire();
 209 }
 210
 211 inline
 212 void CondVar::release(void)
 213 {
 214     Inherited::release();
 215 }
 216
 217 inline
 218 bool CondVar::request(void)
 219 {
 220     return Inherited::request();
 221 }
 222
 223 inline
 224 bool CondVar::wait(const Int32 timeToWait)
 225 {
 226     return Inherited::wait(timeToWait);
 227 }
 228
 229 inline
 230 void CondVar::signal(void)
 231 {
 232     return Inherited::signal();
 233 }
 234
 235 inline
 236 void CondVar::broadcast(void)
 237 {
 238     return Inherited::broadcast();
 239 }
 240
 241 /*------------------------------ CondVar ----------------------------------*/
 242
 243 #if defined(OSG_WIN32_ICL) || defined(OSG_LINUX_ICC)
 244 #pragma warning (error : 171)
 245 #endif
 246
 247 OSG_END_NAMESPACE
 248