123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_ipc_ConnectionOrientedSocket_h
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#define mozilla_ipc_ConnectionOrientedSocket_h
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#include <sys/socket.h>
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#include "DataSocket.h"
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#include "mozilla/ipc/UnixSocketWatcher.h"
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class MessageLoop;
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namespace mozilla {
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namespace ipc {
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class UnixSocketConnector;
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/*
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* |ConnectionOrientedSocketIO| and |ConnectionOrientedSocket| define
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* interfaces for implementing stream sockets on I/O and consumer thread.
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* |ListenSocket| uses these classes to handle accepted sockets.
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*/
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class ConnectionOrientedSocketIO
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: public DataSocketIO
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, public UnixSocketWatcher
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{
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public:
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virtual ~ConnectionOrientedSocketIO();
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nsresult Accept(int aFd,
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const struct sockaddr* aAddress,
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socklen_t aAddressLength);
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nsresult Connect();
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void Send(UnixSocketIOBuffer* aBuffer);
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// Methods for |UnixSocketWatcher|
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//
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void OnSocketCanReceiveWithoutBlocking() final;
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void OnSocketCanSendWithoutBlocking() final;
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void OnListening() final;
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void OnConnected() final;
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void OnError(const char* aFunction, int aErrno) final;
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protected:
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/**
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* Constructs an instance of |ConnectionOrientedSocketIO|
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*
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* @param aConsumerLoop The socket's consumer thread.
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* @param aIOLoop The socket's I/O loop.
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* @param aFd The socket file descriptor.
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* @param aConnectionStatus The connection status for |aFd|.
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* @param aConnector Connector object for socket-type-specific methods.
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*/
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ConnectionOrientedSocketIO(MessageLoop* aConsumerLoop,
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MessageLoop* aIOLoop,
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int aFd, ConnectionStatus aConnectionStatus,
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UnixSocketConnector* aConnector);
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/**
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* Constructs an instance of |ConnectionOrientedSocketIO|
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*
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* @param aConsumerLoop The socket's consumer thread.
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* @param aIOLoop The socket's I/O loop.
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* @param aConnector Connector object for socket-type-specific methods.
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*/
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ConnectionOrientedSocketIO(MessageLoop* aConsumerLoop,
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MessageLoop* aIOLoop,
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UnixSocketConnector* aConnector);
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private:
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/**
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* Connector object used to create the connection we are currently using.
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*/
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nsAutoPtr<UnixSocketConnector> mConnector;
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/**
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* Number of valid bytes in |mPeerAddress|.
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*/
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socklen_t mPeerAddressLength;
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/**
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* Address of the socket's current peer.
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*/
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struct sockaddr_storage mPeerAddress;
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};
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class ConnectionOrientedSocket : public DataSocket
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{
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public:
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/**
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* Prepares an instance of |ConnectionOrientedSocket| in DISCONNECTED
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* state for accepting a connection. Consumer-thread only.
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*
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* @param aConnector The new connector object, owned by the
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* connection-oriented socket.
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* @param aConsumerLoop The socket's consumer thread.
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* @param aIOLoop The socket's I/O thread.
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* @param[out] aIO, Returns an instance of |ConnectionOrientedSocketIO|.
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* @return NS_OK on success, or an XPCOM error code otherwise.
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*/
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virtual nsresult PrepareAccept(UnixSocketConnector* aConnector,
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MessageLoop* aConsumerLoop,
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MessageLoop* aIOLoop,
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ConnectionOrientedSocketIO*& aIO) = 0;
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protected:
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ConnectionOrientedSocket();
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virtual ~ConnectionOrientedSocket();
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};
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}
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}
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#endif // mozilla_ipc_ConnectionOrientedSocket
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