EINTR error in SunOS

From: Qingqing Zhou <zhouqq(at)cs(dot)toronto(dot)edu>
To: pgsql-hackers(at)postgresql(dot)org
Subject: EINTR error in SunOS
Date: 2005-12-30 05:08:39
Message-ID: Pine.GSO.4.58.0512292353050.26813@dvp.cs
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I encountered an error today (can't repeat) on SunOS 5.8:

--test that we read consecutive LFs properly
CREATE TEMP TABLE testnl (a int, b text, c int);
+ ERROR: could not open relation 1663/16384/37713: Interrupted system call

The reason I guess is the open() call is interrupted by a signal (what
signal BTW?). This error may be specific to SunOS/Solaris, but POSIX does
say that an EINTR is possible on open(), close(), read(), write() and also
the fopen() family:

http://www.opengroup.org/onlinepubs/007908799/xsh/open.html

We have patched read()/write(), shall we do so to open()/close() and also
fopen() family? Patching files other than fd.c seems unnecessary for two
reasons: (1) they are not frequently exercised; (2) they don't have the
basic errno-check code there.

Regards,
Qingqing

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