JCL Help:LockedAdd@Int64@Int64

 JCL Help: LockedAdd Function

JCL Functions

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Summary

Thread safe addition.

Pascal

 function LockedAdd(var Target: Integer; Value: Integer): Integer; overload;
function LockedAdd(var Target: Int64; Value: Int64): Int64; overload;

Parameters

Parameters	Description
var Target: Integer	The target variable to add Value to.
Value: Integer	The value to add to Target

Return Value

The resulting value of Target after the addition. Note that the actual value of the variable may have already changed.

Description

LockedAdd implements threadsafe addition for integers. The function adds Value to Target and returns the new value of Target. The LockedXxx functions allow for a simple and efficient way for applications to synchronize access to and manipulate integer variables which are shared by multiple threads.

See Also

LockedSub LockedExchange LockedInc LockedDec

About

Unit

JclSynch

Donator

Azret Botash

Notes

The Win32 API provides similar functions. Look up InterlockedXxx in the Platform SDK.

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