cas.h File Reference

Compare an set methods. More...

#include "typedefs.h"
#include "kernel.h"

Go to the source code of this file.

Functions
BOOL	cas_unsigned (POINTER *p, unsigned expected, unsigned value)
	compare and set.
BOOL	cas_byte (POINTER *p, byte expected, byte value)
unsigned	get_unsigned (POINTER *p)
	inspect the value Is used to inspect the value at the given address.
unsigned	get_byte (POINTER *p)

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Detailed Description

Compare an set methods.

This files describes the compare and set interface. It may be used to to implement lock free algorthms.

Definition in file cas.h.

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Function Documentation

BOOL cas_unsigned (  POINTER *  p, unsigned  expected, unsigned  value )

compare and set. If the address to be changed the expected value, it will be changed and a true will be returned. Otherwise no change will be done and false is returned. Parameters: p  reference to the unsigned int which shall be changed expected  the expected value value  the value which has to be set.

unsigned get_unsigned (  POINTER *  p  )

inspect the value Is used to inspect the value at the given address. Parameters: p  referes to the value to be inspected.

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