ipc/ipc_message_utils_impl.h

   1 // Copyright (c) 2010 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 // This file contains templates forward declared (but not defined) in
   6 // ipc_message_utils.h so that they are only instantiated in certain files,
   7 // notably ipc_message_impl_macros.h and a few IPC unit tests.
   8
   9 #ifndef IPC_IPC_MESSAGE_UTILS_IMPL_H_
  10 #define IPC_IPC_MESSAGE_UTILS_IMPL_H_
  11
  12 namespace IPC {
  13
  14 template <class ParamType>
  15 MessageWithTuple<ParamType>::MessageWithTuple(
  16     int32 routing_id, uint32 type, const RefParam& p)
  17     : Message(routing_id, type, PRIORITY_NORMAL) {
  18   WriteParam(this, p);
  19 }
  20
  21 template <class ParamType>
  22 bool MessageWithTuple<ParamType>::Read(const Message* msg, Param* p) {
  23   void* iter = NULL;
  24   if (ReadParam(msg, &iter, p))
  25     return true;
  26   NOTREACHED() << "Error deserializing message " << msg->type();
  27   return false;
  28 }
  29
  30 // We can't migrate the template for Log() to MessageWithTuple, because each
  31 // subclass needs to have Log() to call Read(), which instantiates the above
  32 // template.
  33
  34 template <class SendParamType, class ReplyParamType>
  35 MessageWithReply<SendParamType, ReplyParamType>::MessageWithReply(
  36     int32 routing_id, uint32 type,
  37     const RefSendParam& send,
  38     const ReplyParam& reply)
  39     : SyncMessage(routing_id, type, PRIORITY_NORMAL,
  40                   new ParamDeserializer<ReplyParam>(reply)) {
  41   WriteParam(this, send);
  42 }
  43
  44 template <class SendParamType, class ReplyParamType>
  45 bool MessageWithReply<SendParamType, ReplyParamType>::ReadSendParam(
  46     const Message* msg, SendParam* p) {
  47   void* iter = SyncMessage::GetDataIterator(msg);
  48   return ReadParam(msg, &iter, p);
  49 }
  50
  51 template <class SendParamType, class ReplyParamType>
  52 bool MessageWithReply<SendParamType, ReplyParamType>::ReadReplyParam(
  53     const Message* msg, typename TupleTypes<ReplyParam>::ValueTuple* p) {
  54   void* iter = SyncMessage::GetDataIterator(msg);
  55   return ReadParam(msg, &iter, p);
  56 }
  57
  58 }  // namespace IPC
  59
  60 #endif  // IPC_IPC_MESSAGE_UTILS_IMPL_H_