mirror of
https://github.com/kidfromjupiter/nearby.git
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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
// Copyright 2021 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/test/fake_clock.h"
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#include <functional>
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#include <string>
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#include <utility>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "absl/synchronization/mutex.h"
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#include "absl/time/time.h"
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namespace nearby {
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FakeClock::~FakeClock() {
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absl::MutexLock lock(mutex_);
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observers_.clear();
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}
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absl::Time FakeClock::Now() const {
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absl::MutexLock lock(mutex_);
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return now_;
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}
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void FakeClock::AddObserver(absl::string_view name,
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std::function<void()> observer) {
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absl::MutexLock lock(mutex_);
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observers_.emplace(name, std::move(observer));
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}
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void FakeClock::RemoveObserver(absl::string_view name) {
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absl::MutexLock lock(mutex_);
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observers_.erase(name);
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}
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void FakeClock::FastForward(absl::Duration duration) {
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std::vector<std::string> timer_callback_ids;
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{
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absl::MutexLock lock(mutex_);
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now_ += duration;
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for (const auto& observer : observers_) {
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timer_callback_ids.push_back(observer.first);
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}
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}
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for (const auto& timer_callback_id : timer_callback_ids) {
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// Timer may be closed during other timer running, so only run callback
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// on available timers.
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bool is_alive_timer = true;
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std::function<void()> callback;
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{
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absl::MutexLock lock(mutex_);
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is_alive_timer = observers_.contains(timer_callback_id);
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if (!is_alive_timer) {
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continue;
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}
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callback = observers_[timer_callback_id];
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}
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callback();
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}
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}
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int FakeClock::GetObserversCount() {
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absl::MutexLock lock(mutex_);
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return observers_.size();
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}
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void FakeClock::Reset() {
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absl::MutexLock lock(mutex_);
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return observers_.clear();
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}
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} // namespace nearby
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