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From: ballard@cheddar.ucs.ubc.ca (Alan Ballard)
Subject: Re: OS/2 C compiler
Message-ID: <1991Apr21.172950.19634@unixg.ubc.ca>
Keywords: OS/2 'C'
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References: <1581@integow.uucp> <1991Apr20.190744.6675@unixg.ubc.ca> <1991Apr21.083505.22743@mathrt0.math.chalmers.se>
Date: Sun, 21 Apr 1991 17:29:50 GMT

In article <1991Apr21.083505.22743@mathrt0.math.chalmers.se> d9mikael@dtek.chalmers.se (Mikael Wahlgren) writes:
>
>Note that some C-libraries are NOT reentrant.
>
All the C libraries handle reentrancy across processes, as far as I know
(they have "instance data" allocated for each process).  However, it
is possible to have problems with multiple threads because there isn't
a separate copy of this data for each thread.  For example, a static I/O
buffer can cause problems if two threadsin the same process do I/O. 
There is a multi-thread version of the standard library to deal with this. 
Alan Ballard                   | Internet: ballard@ucs.ubc.ca
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