1 /*
2 * Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 2000-2002 Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 /* $Id: os.c,v 1.8 2007/06/19 23:47:19 tbox Exp $ */
19
20 #include <windows.h>
21
22 #include <isc/os.h>
23
24 static BOOL bInit = FALSE;
25 static SYSTEM_INFO SystemInfo;
26
27 static void
initialize_action(void)28 initialize_action(void) {
29 if (bInit)
30 return;
31
32 GetSystemInfo(&SystemInfo);
33 bInit = TRUE;
34 }
35
36 unsigned int
isc_os_ncpus(void)37 isc_os_ncpus(void) {
38 long ncpus = 1;
39 initialize_action();
40 ncpus = SystemInfo.dwNumberOfProcessors;
41 if (ncpus <= 0)
42 ncpus = 1;
43
44 return ((unsigned int)ncpus);
45 }
46