sack::memory::LockedExchange64 Function

C++

MEM_PROC _64 MEM_API LockedExchange64(PV_64 p, _64 val);

File

sharemem.h

Parameters

Parameters	Description
PV_64 p	pointer to a volatile 64 bit value.
_64 val	a new 64 bit value to put at (*p)

Description

Multi-processor safe exchange operation. Returns the prior value at the pointer.

Example

_64 value = 13;
_64 oldvalue = LockedExchange64( &value, 15 );
// old value will be 13
// value will be 15

Group

Functions

Links

sharemem.h, Functions, Example

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