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00022 #ifndef WT_OS_BASE_H
00023 #define WT_OS_BASE_H
00024
00025 #include <wefts_cleanup.h>
00026 #include <string>
00027
00042 namespace Wefts {
00043
00052 typedef enum
00053 {
00059 PrioRealTime = 0,
00065 PrioHigh = 1,
00072 PrioNormal = 2,
00079 PrioLow = 3,
00086 PrioIdle = 4
00087 } OSPriority ;
00088
00100 typedef struct tag_ThreadAndReturn
00101 {
00102 void *thread;
00103 void *runReturn;
00104 } ThreadAndReturn;
00105
00112 class OSMutexBase {
00113 protected:
00115 OSMutexBase(){}
00116
00117 public:
00119 virtual inline void lock()=0;
00120
00122 virtual inline bool trylock()=0;
00123
00125 virtual inline void unlock()=0;
00126 };
00127
00143 class OSConditionBase {
00144 protected:
00146 OSConditionBase() {}
00147
00148 public:
00152 virtual void signal()=0;
00153
00157 virtual void signalOne()=0;
00158
00172 virtual bool wait( OSMutexBase &mtx, CleanupItem &guard )=0;
00173
00182 virtual bool timedWait( OSMutexBase &mtx, long seconds,
00183 long nanoseconds, CleanupItem &guard )=0;
00184 };
00185
00191 class OSThreadBase {
00192 protected:
00197 OSThreadBase() {}
00198
00203 OSThreadBase( bool ) {}
00204
00205 protected:
00210 virtual void exit( void *data )=0;
00211
00212 public:
00245 virtual bool priority( OSPriority prio_class, int boost = 0) = 0;
00246
00253 virtual bool start( void *(*func)(void *), void *data )=0;
00254
00256 virtual bool stop()=0;
00257
00259 virtual void *join()=0;
00260
00268 virtual int enableCancel()=0;
00269
00274 virtual int disableCancel()=0;
00275
00283 virtual bool setCancelState( int state )=0;
00284
00286 virtual void testCancel()=0;
00293 virtual void setCancelDeferred()=0;
00294
00301 virtual void detach()=0;
00302
00308 virtual void emuDeferredStart() {}
00309
00315 virtual void emuDeferredEnd() {}
00316
00342 virtual void *osRun( void * (*func)(void *), void *data, void (*cleanup)(void *) )=0;
00343
00346 virtual bool same() const=0;
00347
00349 virtual bool equal( const OSThreadBase &th ) const =0;
00350
00357 virtual bool setCurrent()=0;
00358
00359
00360
00361
00362
00363
00364 virtual void invalidate()=0;
00365
00367 virtual bool operator==( OSThreadBase &th ) { return equal( th ); }
00368
00370 virtual bool operator!=( OSThreadBase &th ) { return ! equal( th ); }
00371 };
00372
00374 class OSSpecificDataBase
00375 {
00376 protected:
00378 OSSpecificDataBase() {}
00379
00380 public:
00381
00383 virtual void *data() const =0;
00384
00386 virtual void data(const void *dt) =0;
00387 };
00388
00389
00391 std::string OSErrorDescription( int osCode );
00392
00394 bool OSSleep( long nSeconds, long nNanoseconds );
00395
00396
00398 }
00399
00400 #endif
00401
00402