1 files changed, 35 insertions, 0 deletions
diff --git a/db-4.8.30/os_windows/os_yield.c b/db-4.8.30/os_windows/os_yield.c
new file mode 100644
index 0000000..3d07386
--- /dev/null
+++ b/db-4.8.30/os_windows/os_yield.c
@@ -0,0 +1,35 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997-2009 Oracle.  All rights reserved.
+ *
+ * $Id$
+ */
+
+#include "db_config.h"
+
+#include "db_int.h"
+
+/*
+ * __os_yield --
+ *	Yield the processor, optionally pausing until running again.
+ */
+void
+__os_yield(env, secs, usecs)
+	ENV *env;
+	u_long secs, usecs;		/* Seconds and microseconds. */
+{
+	COMPQUIET(env, NULL);
+
+	/* Don't require the values be normalized. */
+	for (; usecs >= US_PER_SEC; usecs -= US_PER_SEC)
+		++secs;
+
+	/*
+	 * Yield the processor so other processes or threads can run.
+	 *
+	 * Sheer raving paranoia -- don't sleep for 0 time, in case some
+	 * implementation doesn't yield the processor in that case.
+	 */
+	Sleep(secs * MS_PER_SEC + (usecs / US_PER_MS) + 1);
+}