Source/Base/Threading/OSGLock.inl

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  38
  39 OSG_BEGIN_NAMESPACE
  40
  41 #if defined (OSG_USE_PTHREADS)
  42
  43 /*------------------------------- Lock ------------------------------------*/
  44
  45 inline
  46 void PThreadLockBase::acquire(void)
  47 {
  48     pthread_mutex_lock(&(_pLowLevelLock));
  49 }
  50
  51 inline
  52 void PThreadLockBase::release(void)
  53 {
  54     pthread_mutex_unlock(&(_pLowLevelLock));
  55 }
  56
  57 inline
  58 bool PThreadLockBase::request(void)
  59 {
  60     return (pthread_mutex_trylock(&(_pLowLevelLock)) != EBUSY);
  61 }
  62
  63 #endif /* OSG_USE_PTHREADS */
  64
  65
  66 #if defined (OSG_USE_SPROC)
  67
  68 /*------------------------------- Lock ------------------------------------*/
  69
  70 inline
  71 void SprocLockBase::acquire(void)
  72 {
  73 #ifdef OSG_SPROC_USE_LOCK
  74     if(_pLowLevelLock != NULL)
  75         ussetlock(_pLowLevelLock);
  76 #else
  77     if(_pLowLevelSema != NULL)
  78         uspsema(_pLowLevelSema);
  79 #endif
  80 }
  81
  82 inline
  83 void SprocLockBase::release(void)
  84 {
  85 #ifdef OSG_SPROC_USE_LOCK
  86     if(_pLowLevelLock != NULL)
  87         usunsetlock(_pLowLevelLock);
  88 #else
  89     if(_pLowLevelSema != NULL)
  90         usvsema(_pLowLevelSema);
  91 #endif
  92 }
  93
  94 inline
  95 bool SprocLockBase::request(void)
  96 {
  97     bool  returnValue = false;
  98     Int32 rc          = 0;
  99
 100 #ifdef OSG_SPROC_USE_LOCK
 101     if(_pLowLevelLock != NULL)
 102         rc = uscsetlock(_pLowLevelLock, 0);
 103 #else
 104     if(_pLowLevelSema != NULL)
 105         rc = uscpsema(_pLowLevelSema);
 106 #endif
 107
 108     returnValue = (rc == 1);
 109
 110     return returnValue;
 111 }
 112
 113 #endif /* OSG_USE_SPROC */
 114
 115
 116 #if defined (OSG_USE_WINTHREADS)
 117
 118 /*------------------------------- Lock ------------------------------------*/
 119
 120 inline
 121 void WinThreadLockBase::acquire(void)
 122 {
 123 #if defined(OSG_GV_BETA) && defined(OSG_DBG_LCK)
 124     fprintf(stderr, "Lock::acquire %p\n", this);
 125 #endif
 126
 127 #ifdef OSG_WINLOCK_USE_MUTEX
 128     WaitForSingleObject(_pMutex, INFINITE);
 129 #else
 130     EnterCriticalSection(&_pCriticalSection);
 131 #endif
 132 }
 133
 134 inline
 135 void WinThreadLockBase::release(void)
 136 {
 137 #if defined(OSG_GV_BETA) && defined(OSG_DBG_LCK)
 138     fprintf(stderr, "Lock::release %p\n", this);
 139 #endif
 140
 141 #ifdef OSG_WINLOCK_USE_MUTEX
 142     ReleaseMutex(_pMutex);
 143 #else
 144     LeaveCriticalSection(&_pCriticalSection);
 145 #endif
 146 }
 147
 148 inline
 149 bool WinThreadLockBase::request(void)
 150 {
 151 #ifdef OSG_WINLOCK_USE_MUTEX
 152     DWORD rc;
 153     rc = WaitForSingleObject(_pMutex, 0);
 154
 155     if(rc == WAIT_OBJECT_0)
 156     {
 157         return true;
 158     }
 159     else
 160     {
 161         return false;
 162     }
 163 #else
 164     return (TryEnterCriticalSection(&_pCriticalSection) != FALSE);
 165 #endif
 166 }
 167
 168 #endif /* OSG_USE_WINTHREADS */
 169
 170
 171
 172
 173 inline
 174 Lock::ObjTransitPtr Lock::create(void)
 175 {
 176     return Lock::get(NULL, false);
 177 }
 178
 179 inline
 180 const MPLockType &Lock::getClassType(void)
 181 {
 182     return _type;
 183 }
 184
 185 /*------------------------------- Lock ------------------------------------*/
 186
 187 inline
 188 void Lock::acquire(void)
 189 {
 190     Inherited::acquire();
 191 }
 192
 193 inline
 194 void Lock::release(void)
 195 {
 196     Inherited::release();
 197 }
 198
 199 inline
 200 bool Lock::request(void)
 201 {
 202     return Inherited::request();
 203 }
 204
 205 inline
 206 LockPool::ObjTransitPtr LockPool::create(void)
 207 {
 208     return LockPool::get(NULL, false);
 209 }
 210
 211 inline
 212 const MPLockPoolType &LockPool::getClassType(void)
 213 {
 214     return _type;
 215 }
 216
 217 /*------------------------------ Lock -------------------------------------*/
 218
 219 #if defined(OSG_WIN32_ICL) || defined(OSG_LINUX_ICC)
 220 #pragma warning (disable : 171)
 221 #endif
 222
 223 inline
 224 void LockPool::acquire(void *keyP)
 225 {
 226     _pLocks[(NumericalKeyType(keyP) & uiLockPoolMask) >> 7].acquire();
 227 }
 228
 229 inline
 230 void LockPool::release(void *keyP)
 231 {
 232     _pLocks[(NumericalKeyType(keyP) & uiLockPoolMask) >> 7].release();
 233 }
 234
 235 inline
 236 bool LockPool::request(void *keyP)
 237 {
 238     return _pLocks[(NumericalKeyType(keyP) & uiLockPoolMask) >> 7].request();
 239 }
 240
 241 #if defined(OSG_WIN32_ICL) || defined(OSG_LINUX_ICC)
 242 #pragma warning (error : 171)
 243 #endif
 244
 245 OSG_END_NAMESPACE