mirror of
https://github.com/kidfromjupiter/nearby.git
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65 lines
1.8 KiB
C++
65 lines
1.8 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/timer_impl.h"
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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 "internal/platform/implementation/platform.h"
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#include "internal/platform/logging.h"
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namespace nearby {
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bool TimerImpl::Start(int delay, int period,
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absl::AnyInvocable<void()> callback) {
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if (delay < 0) {
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delay = 0;
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}
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if (period < 0) {
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period = 0;
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}
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absl::MutexLock lock(mutex_);
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if (internal_timer_ != nullptr) {
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LOG(INFO) << "The timer is already running.";
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return false;
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}
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internal_timer_ = api::ImplementationPlatform::CreateTimer();
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if (!internal_timer_->Create(delay, period, std::move(callback))) {
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LOG(INFO) << "Failed to create timer.";
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internal_timer_ = nullptr;
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return false;
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}
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return true;
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}
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void TimerImpl::Stop() {
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absl::MutexLock lock(mutex_);
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if (internal_timer_ == nullptr) {
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return;
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}
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// Stop returns false if timer has already fired. We can ignore that.
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internal_timer_->Stop();
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internal_timer_ = nullptr;
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}
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bool TimerImpl::IsRunning() {
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absl::MutexLock lock(mutex_);
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return (internal_timer_ != nullptr);
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}
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} // namespace nearby
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