ASSERT_SRW_WAITBLOCK InterlockedAddPointer InterlockedAndPointer InterlockedBitTestAndSetPointer InterlockedOrPointer NDEBUG RTL_SRWLOCK_BITS RTL_SRWLOCK_CONTENDED RTL_SRWLOCK_CONTENDED_BIT RTL_SRWLOCK_CONTENTION_LOCK RTL_SRWLOCK_CONTENTION_LOCK_BIT RTL_SRWLOCK_MASK RTL_SRWLOCK_OWNED RTL_SRWLOCK_OWNED_BIT RTL_SRWLOCK_SHARED RTL_SRWLOCK_SHARED_BIT RtlAcquireSRWLockExclusive RtlAcquireSRWLockShared RtlInitializeSRWLock RtlpAcquireSRWLockExclusiveWait RtlpAcquireSRWLockSharedWait RtlpAcquireWaitBlockLock RtlpReleaseWaitBlockLock RtlpReleaseWaitBlockLockExclusive RtlpReleaseWaitBlockLockLastShared RtlReleaseSRWLockExclusive RtlReleaseSRWLockShared

static PRTLP_SRWLOCK_WAITBLOCK NTAPI RtlpAcquireWaitBlockLock ( IN OUT PRTL_SRWLOCK  SRWLock ) [static] Definition at line 207 of file srw.c. Referenced by RtlAcquireSRWLockExclusive(), RtlAcquireSRWLockShared(), RtlReleaseSRWLockExclusive(), and RtlReleaseSRWLockShared(). { LONG_PTR PrevValue; PRTLP_SRWLOCK_WAITBLOCK WaitBlock; while (1) { PrevValue = InterlockedOrPointer(&SRWLock->Ptr, RTL_SRWLOCK_CONTENTION_LOCK); if (!(PrevValue & RTL_SRWLOCK_CONTENTION_LOCK)) break; YieldProcessor(); } if (!(PrevValue & RTL_SRWLOCK_CONTENDED) || (PrevValue & ~RTL_SRWLOCK_MASK) == 0) { /* Too bad, looks like the wait block was removed in the meanwhile, unlock again */ RtlpReleaseWaitBlockLock(SRWLock); return NULL; } WaitBlock = (PRTLP_SRWLOCK_WAITBLOCK)(PrevValue & ~RTL_SRWLOCK_MASK); ASSERT_SRW_WAITBLOCK(WaitBlock); return WaitBlock; }