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// Copyright 2020 The Chromium Authors
// 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 "base/base_export.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_local_storage.h"
#include "third_party/perfetto/include/perfetto/base/thread_utils.h"
#include "third_party/perfetto/include/perfetto/tracing/platform.h"
namespace base {
namespace tracing {
class PerfettoTaskRunner;
class BASE_EXPORT PerfettoPlatform : public perfetto::Platform {
public:
struct Options final {
// The prefix to return in GetCurrentProcessName(). This makes it possible
// to customize the Perfetto "producer name", which can then be used as
// a filter in the Perfetto trace config (see
// TraceConfig.DataSource.producer_name_filter).
std::string process_name_prefix = "org.chromium-";
// Defer delayed tasks to PerfettoTaskRunner until task runner resets after
// sandbox entry.
bool defer_delayed_tasks = false;
// Work around https://bugs.llvm.org/show_bug.cgi?id=36684
static Options Default() { return {}; }
};
explicit PerfettoPlatform(scoped_refptr<base::SequencedTaskRunner>,
Options options = Options::Default());
~PerfettoPlatform() override;
// perfetto::Platform implementation:
ThreadLocalObject* GetOrCreateThreadLocalObject() override;
std::unique_ptr<perfetto::base::TaskRunner> CreateTaskRunner(
const CreateTaskRunnerArgs&) override;
std::string GetCurrentProcessName() override;
// Chrome uses different thread IDs than Perfetto on Mac. So we need to
// override this method to keep Perfetto tracks consistent with Chrome
// thread IDs.
perfetto::base::PlatformThreadId GetCurrentThreadId() override;
void ResetTaskRunner(scoped_refptr<base::SequencedTaskRunner> task_runner);
private:
const std::string process_name_prefix_;
const bool defer_delayed_tasks_;
WeakPtr<PerfettoTaskRunner> perfetto_task_runner_;
scoped_refptr<base::SequencedTaskRunner> task_runner_;
ThreadLocalStorage::Slot thread_local_object_;
};
} // namespace tracing
} // namespace base
#endif // BASE_TRACING_PERFETTO_PLATFORM_H_
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