| // 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. |
| |
| #include "pw_chrono/system_clock.h" |
| |
| namespace pw::chrono { |
| namespace { |
| |
| class RealSystemClock final : public VirtualSystemClock { |
| public: |
| SystemClock::time_point now() final { return SystemClock::now(); } |
| }; |
| RealSystemClock real_system_clock; |
| |
| } // namespace |
| |
| VirtualSystemClock& VirtualSystemClock::RealClock() { |
| return real_system_clock; |
| } |
| |
| } // namespace pw::chrono |
| |
| extern "C" pw_chrono_SystemClock_TimePoint pw_chrono_SystemClock_Now() { |
| return {.ticks_since_epoch = |
| pw::chrono::SystemClock::now().time_since_epoch().count()}; |
| } |
| |
| extern "C" pw_chrono_SystemClock_TickCount pw_chrono_SystemClock_TimeDelta( |
| pw_chrono_SystemClock_TimePoint last_time, |
| pw_chrono_SystemClock_TimePoint current_time) { |
| return current_time.ticks_since_epoch - last_time.ticks_since_epoch; |
| } |
| |
| extern "C" int32_t pw_chrono_SystemClock_PeriodSeconds_Numerator() { |
| return pw::chrono::SystemClock::period::num; |
| } |
| |
| extern "C" int32_t pw_chrono_SystemClock_PeriodSeconds_Denominator() { |
| return pw::chrono::SystemClock::period::den; |
| } |
| |
| extern "C" pw_chrono_SystemClock_Nanoseconds |
| pw_chrono_SystemClock_TickCountToNsTruncate( |
| pw_chrono_SystemClock_TickCount ticks) { |
| return std::chrono::duration_cast<std::chrono::nanoseconds>( |
| pw::chrono::SystemClock::duration(ticks)) |
| .count(); |
| } |