Hello Wu, we avoided the problem by setting
Application.UpdateFormatSettings := false; which means that the format settings never get refreshed after application launch. Hence, the settings are threadsafe as they never change. Saturday, May 26, 2007, 5:02:17 AM, you wrote: WA> Hi, I am new to this maillist. I have a small (but anonying) problem about WA> raising exception in Delphi, which I can't find a good answer anywhere. I WA> hope someone could shed me some light on it. WA> My question is: "Is raising Exception threadsafe in Delphi?" To be clear, WA> it is not about the "raising" part, but the "Exception" part. WA> The "Exception" class in SysUtils unit has a serie of constructors WA> Create*Fmt*() that combines "Format" functionality into the constructor. WA> When I examine its source I found out those constructors all use the WA> "Format(Format, Args)" routine. However, the Delphi documentation clearly WA> stated that the "Format(Format, Args)" routine is NOT threadsafe. So, I WA> think it also implies that the Exception class constructors that use them WA> are NOT threadsafe, which means, raising an exception using the Create*Fmt* WA> constructor is NOT threadsafe!(?!) WA> After discovering this problem, I coded my own "threadsafe" version WA> exception class which uses the threadsafe "Format(Format, Args, WA> FmtSettings)" routine, feeding it a per-thread copy of FormatSettings. WA> Yes, you can call me paranoid, because even I have the same feeling. So I WA> really want to know whether my suspect is true or I am practising something WA> that is not necessary... WA> ------ WA> .dlrow eht htiw thgir s'lla ,nevaeh sih ni si doG WA> _________________________________________________________________ WA> 与联机的朋友进行交流，请使用 Live Messenger; WA> http://get.live.com/messenger/overview WA> --------------------------------------------------------------------------------------- WA> Orange vous informe que cet e-mail a ete controle par l'anti-virus mail. WA> Aucun virus connu a ce jour par nos services n'a ete detecte. -- Best regards, Stephen mailto:[EMAIL PROTECTED]
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