Hi, I am new to this maillist. I have a small (but anonying) problem about
raising exception in Delphi, which I can't find a good answer anywhere. I
hope someone could shed me some light on it.
My question is: "Is raising Exception threadsafe in Delphi?" To be clear,
it is not about the "raising" part, but the "Exception" part.
The "Exception" class in SysUtils unit has a serie of constructors
Create*Fmt*() that combines "Format" functionality into the constructor.
When I examine its source I found out those constructors all use the
"Format(Format, Args)" routine. However, the Delphi documentation clearly
stated that the "Format(Format, Args)" routine is NOT threadsafe. So, I
think it also implies that the Exception class constructors that use them
are NOT threadsafe, which means, raising an exception using the Create*Fmt*
constructor is NOT threadsafe!(?!)
After discovering this problem, I coded my own "threadsafe" version
exception class which uses the threadsafe "Format(Format, Args,
FmtSettings)" routine, feeding it a per-thread copy of FormatSettings.
Yes, you can call me paranoid, because even I have the same feeling. So I
really want to know whether my suspect is true or I am practising something
that is not necessary...
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.dlrow eht htiw thgir s'lla ,nevaeh sih ni si doG
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