chromium/mojo/core/broker_messages.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/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#ifndef MOJO_CORE_BROKER_MESSAGES_H_
#define MOJO_CORE_BROKER_MESSAGES_H_

#include "build/build_config.h"
#include "mojo/core/channel.h"

namespace mojo {
namespace core {

#pragma pack(push, 1)

enum BrokerMessageType : uint32_t { … };

struct BrokerMessageHeader { … };

static_assert …;

struct BufferRequestData { … };

struct BufferResponseData { … };

#if BUILDFLAG(IS_WIN)
struct InitData {
  // NOTE: InitData in the payload is followed by string16 data with exactly
  // |pipe_name_length| wide characters (i.e., |pipe_name_length|*2 bytes.)
  // This applies to Windows only.
  uint32_t pipe_name_length;
};
#endif

#pragma pack(pop)

template <typename T>
inline bool GetBrokerMessageData(Channel::Message* message, T** out_data) { … }

template <typename T>
inline Channel::MessagePtr CreateBrokerMessage(
    BrokerMessageType type,
    size_t num_handles,
    size_t extra_data_size,
    T** out_message_data,
    void** out_extra_data = nullptr) { … }

inline Channel::MessagePtr CreateBrokerMessage(
    BrokerMessageType type,
    size_t num_handles,
    std::nullptr_t** dummy_out_data) { … }

}  // namespace core
}  // namespace mojo

#endif  // MOJO_CORE_BROKER_MESSAGES_H_