1/*	$NetBSD$	*/
2
3/*
4 * Copyright (C) 2004, 2007, 2008  Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (C) 2000, 2001  Internet Software Consortium.
6 *
7 * Permission to use, copy, modify, and/or distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20/* Id: resource.c,v 1.10 2008/07/11 23:47:09 tbox Exp  */
21
22#include <config.h>
23
24#include <stdio.h>
25
26#include <isc/platform.h>
27#include <isc/resource.h>
28#include <isc/result.h>
29#include <isc/util.h>
30
31#include "errno2result.h"
32
33/*
34 * Windows limits the maximum number of open files to 2048
35 */
36
37#define WIN32_MAX_OPEN_FILES	2048
38
39isc_result_t
40isc_resource_setlimit(isc_resource_t resource, isc_resourcevalue_t value) {
41	isc_resourcevalue_t rlim_value;
42	int wresult;
43
44	if (resource != isc_resource_openfiles)
45		return (ISC_R_NOTIMPLEMENTED);
46
47
48	if (value == ISC_RESOURCE_UNLIMITED)
49		rlim_value = WIN32_MAX_OPEN_FILES;
50	else
51		rlim_value = min(value, WIN32_MAX_OPEN_FILES);
52
53	wresult = _setmaxstdio((int) rlim_value);
54
55	if (wresult > 0)
56		return (ISC_R_SUCCESS);
57	else
58		return (isc__errno2result(errno));
59}
60
61isc_result_t
62isc_resource_getlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
63
64	if (resource != isc_resource_openfiles)
65		return (ISC_R_NOTIMPLEMENTED);
66
67	*value = WIN32_MAX_OPEN_FILES;
68	return (ISC_R_SUCCESS);
69}
70
71isc_result_t
72isc_resource_getcurlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
73	return (isc_resource_getlimit(resource, value));
74}
75