1 files changed, 33 insertions, 0 deletions
diff --git a/pw_chrono/system_clock_facade_test_c.c b/pw_chrono/system_clock_facade_test_c.c
new file mode 100644
index 000000000..d8b21b699
--- /dev/null
+++ b/pw_chrono/system_clock_facade_test_c.c
@@ -0,0 +1,33 @@
+// Copyright 2020 The Pigweed Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+// These tests call the pw_chrono module system_clock API from C. The return
+// values are checked in the main C++ tests.
+
+#include "pw_chrono/system_clock.h"
+
+pw_chrono_SystemClock_TimePoint pw_chrono_SystemClock_CallNow(void) {
+  return pw_chrono_SystemClock_Now();
+}
+
+pw_chrono_SystemClock_Duration pw_chrono_SystemClock_CallTimeElapsed(
+    pw_chrono_SystemClock_TimePoint last_time,
+    pw_chrono_SystemClock_TimePoint current_time) {
+  return pw_chrono_SystemClock_TimeElapsed(last_time, current_time);
+}
+
+pw_chrono_SystemClock_Nanoseconds pw_chrono_SystemClock_CallDurationToNsFloor(
+    pw_chrono_SystemClock_Duration ticks) {
+  return pw_chrono_SystemClock_DurationToNsFloor(ticks);
+}