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_ReadWriteBarrier

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This function forces all previous memory accesses to complete before any subsequent memory access is started.

void __cdecl _ReadWriteBarrier(void);

Parameters

None.

Return Values

None.

Remarks

This function is usually used for writing device drivers to make sure that commands have been sent to the device before status is read. The compiler will not reschedule memory reads and writes across an invocation of _ReadWriteBarrier, even on platforms without explicit synchronization instructions.

Requirements

OS Versions: Windows CE .NET 4.0 and later.
Header: Cmnintrin.h.

See Also

Common Intrinsic Functions

 Last updated on Thursday, April 08, 2004

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