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2006.09.22 17:25 "Re: libjpeg", by Joris Van Damme
Bob, > > > libjpeg is thread-safe as long as (a) you don't have multiple threads > > > operating concurrently on the same jpeg object, and (b) your underlying > > > C library (particularly malloc/free) is thread-safe. You can have > > > multiple jpeg objects being manipulated concurrently by different > > > threads. I completely agree. Bob Friesenhahn wrote: > In this case, "underlying C library" would need to include > setjmp/longjmp. No, it wouldn't. Long jumps are not an actual part of LibJpeg, but merely one of the possible application-level encapsulation choices. Another option could be exceptions on some platforms, and at least on Windows platforms that seems to be a lot more common. In any case, it is outside of the LibJpeg library, a caller design choice, and a separate issue to consider. Best regards, Joris Van Damme info@awaresystems.be http://www.awaresystems.be/ Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html