chromium/base/trace_event/category_registry.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40284755): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif

#ifndef BASE_TRACE_EVENT_CATEGORY_REGISTRY_H_
#define BASE_TRACE_EVENT_CATEGORY_REGISTRY_H_

#include <stddef.h>
#include <stdint.h>

#include <atomic>

#include "base/base_export.h"
#include "base/check_op.h"
#include "base/containers/span.h"
#include "base/memory/raw_ptr.h"
#include "base/trace_event/builtin_categories.h"
#include "base/trace_event/common/trace_event_common.h"
#include "base/trace_event/trace_category.h"
#include "build/build_config.h"

namespace base {
namespace trace_event {

class TraceCategoryTest;
class TraceLog;

// Allows fast and thread-safe acces to the state of all tracing categories.
// All the methods in this class can be concurrently called on multiple threads,
// unless otherwise noted (e.g., GetOrCreateCategoryLocked).
// The reason why this is a fully static class with global state is to allow to
// statically define known categories as global linker-initialized structs,
// without requiring static initializers.
class BASE_EXPORT CategoryRegistry { … };

}  // namespace trace_event
}  // namespace base

#endif  // BASE_TRACE_EVENT_CATEGORY_REGISTRY_H_