1 files changed, 24 insertions, 0 deletions
diff --git a/tests/common/timer_utils.c b/tests/common/timer_utils.c
new file mode 100644
index 00000000..25e7503c
--- /dev/null
+++ b/tests/common/timer_utils.c
@@ -0,0 +1,24 @@
+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "timer_utils.h"
+
+void StartTimer(ClockTimerState* ct) {
+	clock_gettime(CLOCK_REALTIME, &ct->start_time);
+}
+
+void StopTimer(ClockTimerState* ct) {
+	clock_gettime(CLOCK_REALTIME, &ct->end_time);
+}
+
+uint32_t GetDurationMsecs(ClockTimerState* ct) {
+	uint64_t start = ((uint64_t) ct->start_time.tv_sec * 1000000000 +
+			  (uint64_t) ct->start_time.tv_nsec);
+	uint64_t end = ((uint64_t) ct->end_time.tv_sec * 1000000000 +
+			(uint64_t) ct->end_time.tv_nsec);
+	uint64_t duration_msecs = (end - start) / 1000000U;  /* Nanoseconds ->
+							      * Milliseconds. */
+	return (uint32_t) duration_msecs;
+}