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https://github.com/kidfromjupiter/nearby.git
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88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
// Copyright 2022 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 THIRD_PARTY_NEARBY_INTERNAL_TEST_FAKE_TASK_RUNNER_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_TEST_FAKE_TASK_RUNNER_H_
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#include <atomic>
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#include <cstdint>
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#include <future> //NOLINT
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#include <memory>
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#include <thread> //NOLINT
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#include <utility>
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#include <vector>
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#include "absl/base/thread_annotations.h"
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#include "absl/container/flat_hash_map.h"
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#include "absl/time/time.h"
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#include "internal/platform/task_runner.h"
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#include "internal/test/fake_clock.h"
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#include "internal/test/fake_timer.h"
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namespace nearby {
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class FakeTaskRunner : public TaskRunner {
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public:
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enum class Mode { kNoPending, kPending };
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FakeTaskRunner(FakeClock* clock, uint32_t count)
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: clock_(clock), count_(count) {}
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~FakeTaskRunner() override = default;
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bool PostTask(absl::AnyInvocable<void()> task) override;
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// No matter the mode is pending or not, always put the task in timer control.
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// Caller can move forward time to trigger it.
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bool PostDelayedTask(absl::Duration delay,
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absl::AnyInvocable<void()> task) override;
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// Mocked methods.
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void SetMode(Mode mode) { mode_ = mode; }
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Mode GetMode() const { return mode_; }
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void RunNextTask();
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void RunAllPendingTasks();
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const std::vector<absl::AnyInvocable<void()>>& GetPendingTasks() const;
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const absl::flat_hash_map<uint32_t, std::unique_ptr<Timer>>&
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GetPendingDelayedTask();
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int GetConcurrentCount() const { return count_; }
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// In some testcases, we needs to make sure all running tasks completion
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// before go to next task. This method can be used for the purpose.
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static bool WaitForRunningTasksWithTimeout(absl::Duration timeout);
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private:
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uint32_t GenerateId();
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void CleanThreads() ABSL_SHARED_LOCKS_REQUIRED(mutex_);
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void run(absl::AnyInvocable<void()> task) ABSL_LOCKS_EXCLUDED(mutex_);
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Mode mode_ = Mode::kNoPending;
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std::atomic_uint current_id_ = 0;
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FakeClock* clock_ = nullptr;
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uint32_t count_;
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std::vector<absl::AnyInvocable<void()>> pending_tasks_;
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std::vector<uint32_t> completed_delayed_tasks_;
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absl::flat_hash_map<uint32_t, std::unique_ptr<Timer>> pending_delayed_tasks_;
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absl::Mutex mutex_;
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std::vector<std::future<void>> threads_ ABSL_GUARDED_BY(mutex_);
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static std::atomic_uint running_thread_count_;
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};
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_INTERNAL_TEST_FAKE_TASK_RUNNER_H_
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