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A synthetic clock helps testing (long) timeouts by allowing us to move the time forward by an arbitrary amount. PiperOrigin-RevId: 520407442
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// Copyright 2020 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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#ifndef PLATFORM_IMPL_G3_SCHEDULED_EXECUTOR_H_
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#define PLATFORM_IMPL_G3_SCHEDULED_EXECUTOR_H_
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#include <atomic>
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#include <memory>
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#include <string>
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#include <utility>
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#include "absl/container/btree_map.h"
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#include "absl/time/time.h"
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#include "internal/platform/implementation/cancelable.h"
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#include "internal/platform/implementation/g3/single_thread_executor.h"
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#include "internal/platform/implementation/scheduled_executor.h"
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#include "internal/platform/runnable.h"
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namespace nearby {
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namespace g3 {
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// An Executor that reuses a fixed number of threads operating off a shared
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// unbounded queue.
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class ScheduledExecutor final : public api::ScheduledExecutor {
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public:
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ScheduledExecutor();
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~ScheduledExecutor() override;
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void Execute(Runnable&& runnable) override {
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executor_.Execute(std::move(runnable));
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}
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std::shared_ptr<api::Cancelable> Schedule(Runnable&& runnable,
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absl::Duration delay) override;
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void Shutdown() override { executor_.Shutdown(); }
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private:
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void RunReadyTasks();
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SingleThreadExecutor executor_;
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std::string name_;
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absl::Mutex mutex_;
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absl::btree_multimap<absl::Time, std::unique_ptr<Runnable>> tasks_
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ABSL_GUARDED_BY(mutex_);
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};
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} // namespace g3
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} // namespace nearby
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#endif // PLATFORM_IMPL_G3_SCHEDULED_EXECUTOR_H_
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