mirror of
https://github.com/kidfromjupiter/nearby.git
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90 lines
2.4 KiB
C++
90 lines
2.4 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/platform/implementation/windows/timer.h"
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#include <functional>
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#include <memory>
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#include <utility>
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#include "absl/functional/any_invocable.h"
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#include "absl/synchronization/mutex.h"
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#include "absl/time/time.h"
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#include "internal/platform/logging.h"
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#include "internal/platform/runnable.h"
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namespace nearby {
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namespace windows {
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Timer::~Timer() { Stop(); }
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bool Timer::Create(int delay, int interval,
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absl::AnyInvocable<void()> callback) {
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absl::MutexLock lock(&mutex_);
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if ((delay < 0) || (interval < 0)) {
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LOG(WARNING) << "Delay and interval shouldn\'t be negative value.";
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return false;
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}
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if (cancelable_task_) {
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return false;
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}
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callback_ = std::move(callback);
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std::function<void()> internal_callback = [this]() {
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if (callback_ != nullptr) {
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callback_();
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}
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};
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cancelable_task_ = task_scheduler_.Schedule(std::move(internal_callback),
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absl::Milliseconds(delay),
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absl::Milliseconds(interval));
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return cancelable_task_ != nullptr;
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}
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bool Timer::Stop() {
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absl::MutexLock lock(&mutex_);
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if (cancelable_task_ == nullptr) {
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return true;
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}
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bool result = cancelable_task_->Cancel();
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cancelable_task_ = nullptr;
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return result;
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}
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bool Timer::FireNow() {
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absl::MutexLock lock(&mutex_);
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if (!callback_) {
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LOG(ERROR) << "callback_ is empty";
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return false;
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}
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if (task_executor_ == nullptr) {
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task_executor_ = std::make_unique<SubmittableExecutor>();
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}
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if (task_executor_ == nullptr) {
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LOG(ERROR) << "Failed to fire the task due to cannot create executor.";
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return false;
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}
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task_executor_->Execute([&]() { callback_(); });
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return true;
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}
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} // namespace windows
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} // namespace nearby
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