extern nat rts_n_waiting_workers;
extern void grabReturnCapability(Mutex* pMutex, Capability** pCap);
-extern void yieldToReturningWorker(Mutex* pMutex, Capability** pCap);
-extern void waitForWorkCapability(Mutex* pMutex, Capability** pCap, rtsBool runnable);
-
+extern void yieldToReturningWorker(Mutex* pMutex, Capability** pCap, Condition *pThreadCond);
+extern void waitForWorkCapability(Mutex* pMutex, Capability** pCap, Condition *pThreadCond);
+extern void passCapability(Mutex* pMutex, Capability* cap, Condition *pTargetThreadCond);
static inline rtsBool needToYieldToReturningWorker(void)
{