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// Copyright 2013 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_FACTORY_H_
#define IPC_IPC_CHANNEL_FACTORY_H_
#include "base/files/file_path.h"
#include "base/message_loop.h"
#include "ipc/ipc_channel_handle.h"
#include "ipc/ipc_export.h"
namespace IPC {
// A ChannelFactory listens on a UNIX domain socket. When a client connects to
// the socket, it accept()s the connection and passes the new FD to the
// delegate. The delegate is then responsible for creating a new IPC::Channel
// for the FD.
class IPC_EXPORT ChannelFactory : public base::MessageLoopForIO::Watcher {
public:
class Delegate {
public:
// Called when a client connects to the factory. It is the delegate's
// responsibility to create an IPC::Channel for the handle, or else close
// the file descriptor contained therein.
virtual void OnClientConnected(const ChannelHandle& handle) = 0;
// Called when an error occurs and the channel is closed.
virtual void OnListenError() = 0;
};
ChannelFactory(const base::FilePath& path, Delegate* delegate);
virtual ~ChannelFactory();
// Call this to start listening on the socket.
bool Listen();
// Close and unlink the socket, and stop accepting connections.
void Close();
private:
bool CreateSocket();
virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
base::MessageLoopForIO::FileDescriptorWatcher
server_listen_connection_watcher_;
base::FilePath path_;
Delegate* delegate_;
int listen_fd_;
DISALLOW_COPY_AND_ASSIGN(ChannelFactory);
};
} // namespace IPC
#endif // IPC_IPC_CHANNEL_FACTORY_H_
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