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54 lines
1.7 KiB
54 lines
1.7 KiB
// Copyright 2020 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_chrono/system_clock.h"
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namespace pw::chrono {
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namespace {
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class RealSystemClock final : public VirtualSystemClock {
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public:
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SystemClock::time_point now() final { return SystemClock::now(); }
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};
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RealSystemClock real_system_clock;
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} // namespace
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VirtualSystemClock& VirtualSystemClock::RealClock() {
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return real_system_clock;
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}
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} // namespace pw::chrono
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extern "C" pw_chrono_SystemClock_TimePoint pw_chrono_SystemClock_Now() {
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return {
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.duration_since_epoch = {
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.ticks = pw::chrono::SystemClock::now().time_since_epoch().count()}};
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}
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extern "C" pw_chrono_SystemClock_Duration pw_chrono_SystemClock_TimeElapsed(
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pw_chrono_SystemClock_TimePoint last_time,
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pw_chrono_SystemClock_TimePoint current_time) {
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return {.ticks = current_time.duration_since_epoch.ticks -
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last_time.duration_since_epoch.ticks};
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}
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extern "C" pw_chrono_SystemClock_Nanoseconds
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pw_chrono_SystemClock_DurationToNsFloor(
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pw_chrono_SystemClock_Duration duration) {
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return std::chrono::floor<std::chrono::nanoseconds>(
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pw::chrono::SystemClock::duration(duration.ticks))
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.count();
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}
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