1 /* $NetBSD: rpc_dtablesize.c,v 1.16 2013/03/11 20:19:29 tron Exp $ */
2
3 /*
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 * * Neither the name of the "Oracle America, Inc." nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 #if defined(LIBC_SCCS) && !defined(lint)
36 #if 0
37 static char *sccsid = "@(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";
38 static char *sccsid = "@(#)rpc_dtablesize.c 2.1 88/07/29 4.0 RPCSRC";
39 #else
40 __RCSID("$NetBSD: rpc_dtablesize.c,v 1.16 2013/03/11 20:19:29 tron Exp $");
41 #endif
42 #endif
43
44 #include "namespace.h"
45
46 #include <unistd.h>
47
48 int _rpc_dtablesize(void); /* XXX */
49
50 /*
51 * Cache the result of sysconf(_SC_OPEN_MAX), so we don't have to do an
52 * expensive system call every time.
53 */
54 int
_rpc_dtablesize(void)55 _rpc_dtablesize(void)
56 {
57 static int size;
58 if (size == 0)
59 size = (int)sysconf(_SC_OPEN_MAX);
60 return (size);
61 }
62