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From: flee@psuvax1.cs.psu.edu (Felix Lee)
Newsgroups: comp.unix.wizards,comp.bugs.4bsd
Subject: getdtablesize (Re: How to divorce a process ...)
Message-ID: <Feijszg@cs.psu.edu>
Date: 11 Jun 90 22:08:40 GMT
References: <1990Jun8.070904.7466@athena.mit.edu> <36447@sequent.UUCP>
	<11388@pixar.UUCP> <JTKOHL.90Jun11153217@lycus.MIT.EDU>
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>Modern Unixes have a call to tell you the # of file descriptors:
>	count = getdtablesize();

Mmph.  Note that under SunOS 4.1, getdtablesize() can return something
that's less than the number of open files.  File descriptors are now a
resource affected by getrlimit/setrlimit.  getdtablesize returns the
current soft limit on number of file descriptors.  To ensure that all
file descriptors get closed, you should use the hard limit instead.
--
Felix Lee	flee@cs.psu.edu