pw_perf_test: Added internal timing facade + backend

pw_perf_test now has a backend for which it will use
to time the tested components. This update includes
an implementation with pw_chrono, which will be used
for time-based measurements(nanoseconds).

Change-Id: I9a1bb9cf0964caa4d911a1c7c016bab3a41f1e32
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/113890
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: Brian Barcenas <bbarcenas@google.com>
Reviewed-by: Erik Gilling <konkers@google.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/pw_perf_test/chrono_public_overrides/pw_perf_test_timer_backend/timer.h b/pw_perf_test/chrono_public_overrides/pw_perf_test_timer_backend/timer.h
new file mode 100644
index 000000000..1e44ac169
--- /dev/null
+++ b/pw_perf_test/chrono_public_overrides/pw_perf_test_timer_backend/timer.h
@@ -0,0 +1,16 @@
+// Copyright 2022 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.
+#pragma once
+
+#include "pw_perf_test/internal/chrono_timer_interface.h"