glibc/sysdeps/mach/hurd/getdtsz.c
Roland McGrath 2e6f096fd9 * hurd/hurdrlimit.c (init_rlimit): Give the RLIMIT_NOFILE soft limit
an initial value of 1024 instead of RLIM_INFINITY.

	* Versions.def (libmachuser, libhurduser): Remove these sections,
	since these libraries do not presently use symbol versions.

	* sysdeps/mach/hurd/getdtsz.c (__getdtablesize): If the resource limit
	is RLIM_INFINITY, return -1 instead.
2000-03-26 19:17:23 +00:00

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1.6 KiB
C

/* Copyright (C) 1991,92,93,94,95,97,2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
#include <hurd/resource.h>
/* Return the maximum number of file descriptors the current process
could possibly have (until it raises the resource limit). */
int
__getdtablesize ()
{
rlim_t limit;
HURD_CRITICAL_BEGIN;
__mutex_lock (&_hurd_rlimit_lock);
limit = _hurd_rlimits[RLIMIT_NOFILE].rlim_cur;
__mutex_unlock (&_hurd_rlimit_lock);
HURD_CRITICAL_END;
/* RLIM_INFINITY is not meaningful to our caller. -1 is a good choice
because `sysconf (_SC_OPEN_MAX)' calls us, and -1 from sysconf means
"no determinable limit". */
return limit == RLIM_INFINITY ? -1 : (int) limit;
}
weak_alias (__getdtablesize, getdtablesize)