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- // Copyright 2020 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef BASE_TRACING_PERFETTO_PLATFORM_H_
- #define BASE_TRACING_PERFETTO_PLATFORM_H_
- #include "third_party/perfetto/include/perfetto/tracing/platform.h"
- #include "base/base_export.h"
- #include "base/memory/scoped_refptr.h"
- #include "base/threading/thread_id_name_manager.h"
- #include "base/threading/thread_local_storage.h"
- namespace base {
- class DeferredSequencedTaskRunner;
- namespace tracing {
- class BASE_EXPORT PerfettoPlatform : public perfetto::Platform,
- ThreadIdNameManager::Observer {
- public:
- // Specifies the type of task runner used by Perfetto.
- // TODO(skyostil): Move all scenarios to use the default task runner to
- // avoid problems with unexpected re-entrancy and IPC deadlocks.
- enum class TaskRunnerType {
- // Use Perfetto's own task runner which runs tasks on a dedicated (internal)
- // thread.
- kBuiltin,
- // Use base::ThreadPool.
- kThreadPool,
- };
- explicit PerfettoPlatform(TaskRunnerType = TaskRunnerType::kThreadPool);
- ~PerfettoPlatform() override;
- SequencedTaskRunner* task_runner() const;
- bool did_start_task_runner() const { return did_start_task_runner_; }
- void StartTaskRunner(scoped_refptr<SequencedTaskRunner>);
- // perfetto::Platform implementation:
- ThreadLocalObject* GetOrCreateThreadLocalObject() override;
- std::unique_ptr<perfetto::base::TaskRunner> CreateTaskRunner(
- const CreateTaskRunnerArgs&) override;
- std::string GetCurrentProcessName() override;
- // ThreadIdNameManager::Observer implementation.
- void OnThreadNameChanged(const char* name) override;
- private:
- const TaskRunnerType task_runner_type_;
- scoped_refptr<DeferredSequencedTaskRunner> deferred_task_runner_;
- bool did_start_task_runner_ = false;
- ThreadLocalStorage::Slot thread_local_object_;
- };
- } // namespace tracing
- } // namespace base
- #endif // BASE_TRACING_PERFETTO_PLATFORM_H_
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