blob: 14a2f286aec0090c38b20488f4a9754b6a62b122 [file] [log] [blame]
// 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 {
.duration_since_epoch = {
.ticks = pw::chrono::SystemClock::now().time_since_epoch().count()}};
}
extern "C" pw_chrono_SystemClock_Duration pw_chrono_SystemClock_TimeElapsed(
pw_chrono_SystemClock_TimePoint last_time,
pw_chrono_SystemClock_TimePoint current_time) {
return {.ticks = current_time.duration_since_epoch.ticks -
last_time.duration_since_epoch.ticks};
}
extern "C" pw_chrono_SystemClock_Nanoseconds
pw_chrono_SystemClock_DurationToNsFloor(
pw_chrono_SystemClock_Duration duration) {
return std::chrono::floor<std::chrono::nanoseconds>(
pw::chrono::SystemClock::duration(duration.ticks))
.count();
}