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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERFORMANCE_MANAGER_PUBLIC_TRACING_SUPPORT_H_
#define COMPONENTS_PERFORMANCE_MANAGER_PUBLIC_TRACING_SUPPORT_H_
#include <optional>
#include "third_party/perfetto/include/perfetto/tracing/string_helpers.h"
#include "third_party/perfetto/include/perfetto/tracing/track.h"
namespace performance_manager {
class ProcessNode;
// Returns true iff `process_node` has a ProcessTrack that can be used in
// CreateProcessTracingTrack.
bool HasProcessTracingTrack(const ProcessNode* process_node);
// Returns a Perfetto NamedTrack with the given `name` (and optionally `id`),
// which will be nested under the ProcessTrack for the process hosted in
// `process_node`. The browser process can write trace events to this track,
// which will be grouped with the child process in traces.
//
// Note: Must only be called if HasProcessTracingTrack() returns true for
// `process_node`. This doesn't return an `optional<NamedTrack>` because
// Track has deleted assignment operators, making it very awkward to use with
// `optional`.
perfetto::NamedTrack CreateProcessTracingTrack(const ProcessNode* process_node,
perfetto::DynamicString name,
uint64_t id = 0);
perfetto::NamedTrack CreateProcessTracingTrack(const ProcessNode* process_node,
perfetto::StaticString name,
uint64_t id = 0);
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_PUBLIC_TRACING_SUPPORT_H_
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