glibc/sysdeps/mach/hurd/getdtsz.c

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1995-02-18 01:27:10 +00:00
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Return the maximum number of file descriptors the current process
could possibly have (until it raises the resource limit). */
int
DEFUN_VOID(__getdtablesize)
{
int size;
HURD_CRITICAL_BEGIN;
__mutex_lock (&_hurd_rlimits_lock);
size = _hurd_rlimits[RLIM_NOFILE].rlim_cur; /* XXX RLIM_INFINITY?? */
__mutex_unlock (&_hurd_rlimits_lock);
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HURD_CRITICAL_END;
return size;
}
weak_alias (__getdtablesize, getdtablesize)