ReactOS 0.4.15-dev-7924-g5949c20
rpc_dtablesize.c
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1/*
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <wintirpc.h>
30//#include <unistd.h>
31
32//#include <sys/select.h>
33
34int _rpc_dtablesize(void); /* XXX */
35
36/*
37 * Cache the result of getdtablesize(), so we don't have to do an
38 * expensive system call every time.
39 */
40/*
41 * XXX In FreeBSD 2.x, you can have the maximum number of open file
42 * descriptors be greater than FD_SETSIZE (which is 256 by default).
43 *
44 * Since old programs tend to use this call to determine the first arg
45 * for _select(), having this return > FD_SETSIZE is a Bad Idea(TM)!
46 */
47int
49{
50#ifdef _WIN32
51 return FD_SETSIZE;
52#else
53 static int size;
54
55 if (size == 0) {
56 size = getdtablesize();
57 if (size > FD_SETSIZE)
59 }
60 return (size);
61#endif
62}
GLsizeiptr size
Definition: glext.h:5919
int _rpc_dtablesize(void)
#define FD_SETSIZE
Definition: winsock.h:50