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-rw-r--r--lib/isc/win32/os.c45
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diff --git a/lib/isc/win32/os.c b/lib/isc/win32/os.c
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+++ b/lib/isc/win32/os.c
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+/*
+ * Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: os.c,v 1.8 2007/06/19 23:47:19 tbox Exp $ */
+
+#include <windows.h>
+
+#include <isc/os.h>
+
+static BOOL bInit = FALSE;
+static SYSTEM_INFO SystemInfo;
+
+static void
+initialize_action(void) {
+ if (bInit)
+ return;
+
+ GetSystemInfo(&SystemInfo);
+ bInit = TRUE;
+}
+
+unsigned int
+isc_os_ncpus(void) {
+ long ncpus = 1;
+ initialize_action();
+ ncpus = SystemInfo.dwNumberOfProcessors;
+ if (ncpus <= 0)
+ ncpus = 1;
+
+ return ((unsigned int)ncpus);
+}