On Tue, Jul 26, 2011 at 6:40 PM, Shaun Simpson <shaun.simp...@crsltd.com>wrote:
> Hi,**** > > ** ** > > Looking around I have read that the C equivalent Jpeglib is not thread > safe. **** > > I believe that the Pascal code is derived from the C.**** > > ** ** > > Is the Free Pascal implementation of Jpeglib is thread safe?**** > > I am using a class similar to FPReadJPEG and FPWriteJPEG from multiple > threads, do I need some form of locking?**** > > ** ** > > It's an interesting question. Seems like the places that mention thread non-safety, mean something different, for example >From http://www.freedesktop.org/wiki/Software/libjpeg (Note: the JPEG library currently is not thread-safe. You must not call jpeg_consume_input() from one thread of control if a different library routine is working on the same JPEG object in another thread.) So I suppose when you're talking about different jpeg files, there should be no problem, at least I'm not aware of IJG code to be using global variables that can be a real tread in this case Max Vlasov
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