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Tue, Sep 18 2018 3:56 PM	Permanent Link
Ronald	Hi, Just to be absolutely sure... If I do this in a EWB module: procedure TgdbaModule.EWBModuleExecute(Request: TEWBServerRequest); var UserNo :string; begin UserNo:=Request.RequestParams.Values['userno']; end; Then the variable UserNo is unique for each call? The next call does not overwrite it? Thanks, Ronald
Wed, Sep 19 2018 1:23 AM	Permanent Link
Michael Dreher	Ronald wrote: // Then the variable UserNo is unique for each call? The next call does not overwrite it? Thread functions and any of the routines they call have their own local variables for different thread invocations. So yes. Michael Dreher
Wed, Sep 19 2018 3:00 AM	Permanent Link
Ronald	Michael Dreher wrote: < Thread functions and any of the routines they call have their own local variables for different thread invocations. So yes. > Thanks. Now I have 2 more questions: 1: If I would call a function by reference with that variable, would that still OK? Or can other threads mess this up? Like this: procedure AddSomething(var aUserNo:string); begin aUserNo:=aUserNo+'x'; end; I assume I can do this, because the variable has its own address in memory, local for the calling function. 2. But if aUserNo has not been initialized on beforehand in the calling function, would that be a problem? Does it have an address in memory then? It is only declared in de the calling function, but not yet given a value. Hope you understand what I mean. Ronald
Wed, Sep 19 2018 6:35 AM	Permanent Link
Matthew Jones	So long as it is not using a global variable, then it will be good. Be careful though as some functions (like date/time formatting) often use a global buffer to operate. As for assigning to aUserNo if it hasn't been initialized, that's a problem regardless of threads. It probably won't crash, but it probably won't do what you want either.
Wed, Sep 19 2018 12:41 PM	Permanent Link
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com	Ronald, << Then the variable UserNo is unique for each call? The next call does not overwrite it? >> I'm late getting here, but just to confirm, yes, that is correct. Tim Young Elevate Software www.elevatesoft.com
Thu, Sep 20 2018 5:31 AM	Permanent Link
Ronald	Thanks all! Ronald