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// Copyright 2023 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 "chre/platform/condition_variable.h"
#include "pw_chrono/system_clock.h"
namespace chre {
inline ConditionVariable::ConditionVariable() {}
inline ConditionVariable::~ConditionVariable() {}
inline void ConditionVariable::notify_one() { notification_.release(); }
inline void ConditionVariable::wait(Mutex& mutex) {
mutex.unlock();
notification_.acquire();
mutex.lock();
}
inline bool ConditionVariable::wait_for(Mutex& mutex, Nanoseconds timeout) {
mutex.unlock();
auto pw_timeout = pw::chrono::SystemClock::for_at_least(
std::chrono::nanoseconds(timeout.toRawNanoseconds()));
bool did_acquire = notification_.try_acquire_for(pw_timeout);
mutex.lock();
return did_acquire;
}
} // namespace chre
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