chromium/third_party/perfetto/include/perfetto/protozero/message.h

/*
 * Copyright (C) 2017 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_PROTOZERO_MESSAGE_H_
#define INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_

#include <assert.h>
#include <stdint.h>
#include <string.h>

#include <string>
#include <type_traits>

#include "perfetto/base/export.h"
#include "perfetto/base/logging.h"
#include "perfetto/protozero/contiguous_memory_range.h"
#include "perfetto/protozero/proto_utils.h"
#include "perfetto/protozero/scattered_stream_writer.h"

namespace perfetto {
namespace shm_fuzz {
class FakeProducer;
}  // namespace shm_fuzz
}  // namespace perfetto

namespace protozero {

class MessageArena;
class MessageHandleBase;

// Base class extended by the proto C++ stubs generated by the ProtoZero
// compiler. This class provides the minimal runtime required to support
// append-only operations and is designed for performance. None of the methods
// require any dynamic memory allocation, unless more than 16 nested messages
// are created via BeginNestedMessage() calls.
class PERFETTO_EXPORT_COMPONENT Message { … };

}  // namespace protozero

#endif  // INCLUDE_PERFETTO_PROTOZERO_MESSAGE_H_