From: "Tim Van Holder" <tim DOT van DOT holder AT pandora DOT be>
To: <djgpp-workers AT delorie DOT com>
Subject: Interaction between __dpmi_yield and signals?
Date: Sun, 21 Jan 2001 12:47:45 +0100
Message-ID: <NEBBIOJNGMKPNOBKHCGHGENPCAAA.tim.van.holder@pandora.be>
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Reply-To: djgpp-workers AT delorie DOT com

I ran across the follwing issue:

the Smalltalk testsuite has a test for its delay mechanism, which
aborted due to a SIGALRM, even though a signal handler was properly
installed. I tracked the problem to a function called 'relinquish',
which uses select() to relinquish control for a short time. Using
sleep() gave the same result, probably because both called
__dpmi_yield(). Changing the relinquish() function to do nothing at
all on DJGPP does work, however. I just don't see why calling
__dpmi_yield would cause a SIGALRM not to be delivered properly.