mojo/public/cpp/bindings/lib/message_internal.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_INTERNAL_H_
   6 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_INTERNAL_H_
   7
   8 #include "mojo/public/cpp/bindings/lib/bindings_internal.h"
   9
  10 namespace mojo {
  11 namespace internal {
  12
  13 #pragma pack(push, 1)
  14
  15 enum {
  16   kMessageExpectsResponse = 1 << 0,
  17   kMessageIsResponse      = 1 << 1
  18 };
  19
  20 struct MessageHeader : internal::StructHeader {
  21   uint32_t name;
  22   uint32_t flags;
  23 };
  24 MOJO_COMPILE_ASSERT(sizeof(MessageHeader) == 16, bad_sizeof_MessageHeader);
  25
  26 struct MessageHeaderWithRequestID : MessageHeader {
  27   uint64_t request_id;
  28 };
  29 MOJO_COMPILE_ASSERT(sizeof(MessageHeaderWithRequestID) == 24,
  30                     bad_sizeof_MessageHeaderWithRequestID);
  31
  32 struct MessageData {
  33   MessageHeader header;
  34 };
  35
  36 MOJO_COMPILE_ASSERT(sizeof(MessageData) == sizeof(MessageHeader),
  37                     bad_sizeof_MessageData);
  38
  39 #pragma pack(pop)
  40
  41 }  // namespace internal
  42 }  // namespace mojo
  43
  44 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_INTERNAL_H_