chromium/third_party/perfetto/include/perfetto/tracing/platform.h

/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef INCLUDE_PERFETTO_TRACING_PLATFORM_H_
#define INCLUDE_PERFETTO_TRACING_PLATFORM_H_

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

#include <functional>
#include <memory>
#include <string>

#include "perfetto/base/export.h"
#include "perfetto/base/logging.h"
#include "perfetto/base/proc_utils.h"
#include "perfetto/base/thread_utils.h"
#include "perfetto/tracing/tracing.h"

namespace perfetto {

namespace base {
class TaskRunner;
}  // namespace base

// This abstract class is used to abstract dependencies on platform-specific
// primitives that cannot be implemented by the perfetto codebase and must be
// provided or overridden by the embedder.
// This is, for instance, for cases where we want to use some particular
// base:: class in Chrome and provide instead POSIX fallbacks for other
// embedders.

// Base class for thread-local objects. This is to get a basic object vtable and
// delegate destruction to the embedder. See Platform::CreateThreadLocalObject.
class PERFETTO_EXPORT_COMPONENT PlatformThreadLocalObject { … };

class PERFETTO_EXPORT_COMPONENT Platform { … };

}  // namespace perfetto

#endif  // INCLUDE_PERFETTO_TRACING_PLATFORM_H_