On Tue, Jul 26, 2011 at 6:40 PM, Shaun Simpson shaun.simp...@crsltd.comwrote:
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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