1 // Copyright (c) 2011 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.
5 #ifndef IPC_IPC_CHANNEL_WIN_H_
6 #define IPC_IPC_CHANNEL_WIN_H_
9 #include "ipc/ipc_channel.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/message_loop.h"
23 class Channel::ChannelImpl : public MessageLoopForIO::IOHandler {
25 // Mirror methods of Channel, see ipc_channel.h for description.
26 ChannelImpl(const IPC::ChannelHandle &channel_handle, Mode mode,
31 void set_listener(Listener* listener) { listener_ = listener; }
32 bool Send(Message* message);
33 static bool IsNamedServerInitialized(const std::string& channel_id);
35 static const std::wstring PipeName(const std::string& channel_id);
36 bool CreatePipe(const IPC::ChannelHandle &channel_handle, Mode mode);
38 bool ProcessConnection();
39 bool ProcessIncomingMessages(MessageLoopForIO::IOContext* context,
41 bool ProcessOutgoingMessages(MessageLoopForIO::IOContext* context,
44 // MessageLoop::IOHandler implementation.
45 virtual void OnIOCompleted(MessageLoopForIO::IOContext* context,
46 DWORD bytes_transfered, DWORD error);
49 explicit State(ChannelImpl* channel);
51 MessageLoopForIO::IOContext context;
62 // Messages to be sent are queued here.
63 std::queue<Message*> output_queue_;
65 // We read from the pipe into this buffer
66 char input_buf_[Channel::kReadBufferSize];
68 // Large messages that span multiple pipe buffers, get built-up using
70 std::string input_overflow_buf_;
72 // In server-mode, we have to wait for the client to connect before we
73 // can begin reading. We make use of the input_state_ when performing
74 // the connect operation in overlapped mode.
75 bool waiting_connect_;
77 // This flag is set when processing incoming messages. It is used to
78 // avoid recursing through ProcessIncomingMessages, which could cause
79 // problems. TODO(darin): make this unnecessary
80 bool processing_incoming_;
82 ScopedRunnableMethodFactory<ChannelImpl> factory_;
84 scoped_ptr<base::NonThreadSafe> thread_check_;
86 DISALLOW_COPY_AND_ASSIGN(ChannelImpl);
91 #endif // IPC_IPC_CHANNEL_WIN_H_