about summary refs log tree commit diff
path: root/sysdeps/mach/hurd/getdtsz.c
blob: e506963ac3e8b18f3ca43e278409eba714c144d5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/* 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_dtable_lock);
  size = _hurd_dtablesize;
  __mutex_unlock (&_hurd_dtable_lock);
  HURD_CRITICAL_END;
  return size;
}

weak_alias (__getdtablesize, getdtablesize)