Delete IPC::ChannelPosix, IPC::ChannelWin and IPC::AttachmentBroker.

ipc/ipc_channel_win.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef IPC_IPC_CHANNEL_WIN_H_
-#define IPC_IPC_CHANNEL_WIN_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <queue>
-#include <string>
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/win/scoped_handle.h"
-#include "ipc/ipc_channel.h"
-#include "ipc/ipc_channel_reader.h"
-
-namespace base {
-class ThreadChecker;
-}
-
-namespace IPC {
-
-class ChannelWin : public Channel,
-                   public internal::ChannelReader,
-                   public base::MessageLoopForIO::IOHandler {
- public:
-  // Mirror methods of Channel, see ipc_channel.h for description.
-  // |broker| must outlive the newly created object.
-  ChannelWin(const IPC::ChannelHandle& channel_handle,
-             Mode mode,
-             Listener* listener);
-  ~ChannelWin() override;
-
-  // Channel implementation
-  bool Connect() override;
-  void Close() override;
-  bool Send(Message* message) override;
-  AttachmentBroker* GetAttachmentBroker() override;
-  base::ProcessId GetPeerPID() const override;
-  base::ProcessId GetSelfPID() const override;
-
-  static bool IsNamedServerInitialized(const std::string& channel_id);
-
-
- private:
-  // ChannelReader implementation.
-  ReadState ReadData(char* buffer, int buffer_len, int* bytes_read) override;
-  bool ShouldDispatchInputMessage(Message* msg) override;
-  bool GetNonBrokeredAttachments(Message* msg) override;
-  bool DidEmptyInputBuffers() override;
-  void HandleInternalMessage(const Message& msg) override;
-  base::ProcessId GetSenderPID() override;
-  bool IsAttachmentBrokerEndpoint() override;
-
-  static const base::string16 PipeName(const std::string& channel_id,
-                                       int32_t* secret);
-  bool CreatePipe(const IPC::ChannelHandle &channel_handle, Mode mode);
-
-  bool ProcessConnection();
-  bool ProcessOutgoingMessages(base::MessageLoopForIO::IOContext* context,
-                               DWORD bytes_written);
-
-  // Returns |false| on channel error.
-  // If |message| has brokerable attachments, those attachments are passed to
-  // the AttachmentBroker (which in turn invokes Send()), so this method must
-  // be re-entrant.
-  // Adds |message| to |output_queue_| and calls ProcessOutgoingMessages().
-  bool ProcessMessageForDelivery(Message* message);
-
-  // Moves all messages from |prelim_queue_| to |output_queue_| by calling
-  // ProcessMessageForDelivery().
-  void FlushPrelimQueue();
-
-  // MessageLoop::IOHandler implementation.
-  void OnIOCompleted(base::MessageLoopForIO::IOContext* context,
-                     DWORD bytes_transfered,
-                     DWORD error) override;
-
- private:
-  struct State {
-    State();
-    ~State();
-    base::MessageLoopForIO::IOContext context;
-    bool is_pending = false;
-  };
-
-  State input_state_;
-  State output_state_;
-
-  base::win::ScopedHandle pipe_;
-
-  base::ProcessId peer_pid_;
-
-  // Messages not yet ready to be sent are queued here. Messages removed from
-  // this queue are placed in the output_queue_. The double queue is
-  // unfortunate, but is necessary because messages with brokerable attachments
-  // can generate multiple messages to be sent (possibly from other channels).
-  // Some of these generated messages cannot be sent until |peer_pid_| has been
-  // configured.
-  // As soon as |peer_pid| has been configured, there is no longer any need for
-  // |prelim_queue_|. All messages are flushed, and no new messages are added.
-  std::queue<Message*> prelim_queue_;
-
-  // Messages to be sent are queued here.
-  std::queue<OutputElement*> output_queue_;
-
-  // In server-mode, we have to wait for the client to connect before we
-  // can begin reading.  We make use of the input_state_ when performing
-  // the connect operation in overlapped mode.
-  bool waiting_connect_;
-
-  // This flag is set when processing incoming messages.  It is used to
-  // avoid recursing through ProcessIncomingMessages, which could cause
-  // problems.  TODO(darin): make this unnecessary
-  bool processing_incoming_;
-
-  // Determines if we should validate a client's secret on connection.
-  bool validate_client_;
-
-  // This is a unique per-channel value used to authenticate the client end of
-  // a connection. If the value is non-zero, the client passes it in the hello
-  // and the host validates. (We don't send the zero value fto preserve IPC
-  // compatability with existing clients that don't validate the channel.)
-  int32_t client_secret_;
-
-  std::unique_ptr<base::ThreadChecker> thread_check_;
-
-  base::WeakPtrFactory<ChannelWin> weak_factory_;
-  DISALLOW_COPY_AND_ASSIGN(ChannelWin);
-};
-
-}  // namespace IPC
-
-#endif  // IPC_IPC_CHANNEL_WIN_H_