| // 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 <chrono> |
| #include <cstdbool> |
| |
| #include "pw_chrono/system_clock.h" |
| #include "pw_perf_test/internal/duration_unit.h" |
| |
| namespace pw::perf_test::internal::backend { |
| |
| using Timestamp = chrono::SystemClock::time_point; |
| |
| inline constexpr DurationUnit kDurationUnit = DurationUnit::kNanoseconds; |
| |
| [[nodiscard]] inline bool TimerPrepare() { return true; } |
| |
| inline void TimerCleanup() {} |
| |
| inline Timestamp GetCurrentTimestamp() { return chrono::SystemClock::now(); } |
| |
| inline int64_t GetDuration(Timestamp begin, Timestamp end) { |
| return std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin) |
| .count(); |
| } |
| |
| } // namespace pw::perf_test::internal::backend |
