ipc/param_traits_write_macros.h

   1 // Copyright (c) 2012 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 IPC_PARAM_TRAITS_WRITE_MACROS_H_
   6 #define IPC_PARAM_TRAITS_WRITE_MACROS_H_
   7
   8 // Null out all the macros that need nulling.
   9 #include "ipc/ipc_message_null_macros.h"
  10
  11 // STRUCT declarations cause corresponding STRUCT_TRAITS declarations to occur.
  12 #undef IPC_STRUCT_BEGIN
  13 #undef IPC_STRUCT_BEGIN_WITH_PARENT
  14 #undef IPC_STRUCT_MEMBER
  15 #undef IPC_STRUCT_END
  16 #define IPC_STRUCT_BEGIN_WITH_PARENT(struct_name, parent) \
  17   IPC_STRUCT_BEGIN(struct_name)
  18 #define IPC_STRUCT_BEGIN(struct_name) IPC_STRUCT_TRAITS_BEGIN(struct_name)
  19 #define IPC_STRUCT_MEMBER(type, name, ...) IPC_STRUCT_TRAITS_MEMBER(name)
  20 #define IPC_STRUCT_END() IPC_STRUCT_TRAITS_END()
  21
  22 // Set up so next include will generate write methods.
  23 #undef IPC_STRUCT_TRAITS_BEGIN
  24 #undef IPC_STRUCT_TRAITS_MEMBER
  25 #undef IPC_STRUCT_TRAITS_PARENT
  26 #undef IPC_STRUCT_TRAITS_END
  27 #define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
  28   void ParamTraits<struct_name>::Write(Message* m, const param_type& p) {
  29 #define IPC_STRUCT_TRAITS_MEMBER(name) WriteParam(m, p.name);
  30 #define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Write(m, p);
  31 #define IPC_STRUCT_TRAITS_END() }
  32
  33 #undef IPC_ENUM_TRAITS
  34 #define IPC_ENUM_TRAITS(enum_name) \
  35   void ParamTraits<enum_name>::Write(Message* m, const param_type& p) { \
  36     m->WriteInt(static_cast<int>(p)); \
  37   }
  38
  39 #endif  // IPC_PARAM_TRAITS_WRITE_MACROS_H_
  40