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-rw-r--r--lib/isc/win32/os.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/lib/isc/win32/os.c b/lib/isc/win32/os.c
new file mode 100644
index 0000000..0f4023f
--- /dev/null
+++ b/lib/isc/win32/os.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+#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;
+ initialize_action();
+ ncpus = SystemInfo.dwNumberOfProcessors;
+ if (ncpus <= 0)
+ ncpus = 1;
+
+ return ((unsigned int)ncpus);
+}