blob: 183c09e1f8097301dd0c796cc0373b788128d78d (
plain)
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
|
/*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <stdlib.h>
#include <unistd.h>
#include <sys/resource.h>
#include <limits.h>
/* XXX: _BSD || _XOPEN_SOURCE >= 500 */
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* libc_hidden_proto(getdtablesize) */
/* libc_hidden_proto(getrlimit) */
#define __LOCAL_OPEN_MAX 256
/* Return the maximum number of file descriptors
the current process could possibly have. */
int getdtablesize (void)
{
struct rlimit ru;
/* This should even work if `getrlimit' is not implemented. POSIX.1
does not define this function but we will generate a stub which
returns -1. */
return getrlimit (RLIMIT_NOFILE, &ru) < 0 ? __LOCAL_OPEN_MAX : ru.rlim_cur;
}
libc_hidden_def(getdtablesize)
#endif
|