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25b408e533
The new method |UnixSocketConnector::Duplicate| allows a socket connector to duplicate itself. Listening sockets will used this feature to create socket connectors for accepted connections.
95 lines
3.4 KiB
C++
95 lines
3.4 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_unixsocketconnector_h
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#define mozilla_ipc_unixsocketconnector_h
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#include <sys/socket.h>
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#include "mozilla/ipc/UnixSocketWatcher.h"
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#include "nsString.h"
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namespace mozilla {
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namespace ipc {
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/**
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* |UnixSocketConnector| defines the socket creation and connection/listening
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* functions for |UnixSocketConsumer|, et al. Due to the fact that socket setup
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* can vary between protocols (Unix sockets, TCP sockets, Bluetooth sockets, etc),
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* this allows the user to create whatever connection mechanism they need while
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* still depending on libevent for non-blocking communication handling.
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*/
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class UnixSocketConnector
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{
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public:
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virtual ~UnixSocketConnector();
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/**
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* Converts an address to a human-readable string.
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*
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* @param aAddress A socket address
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* @param aAddressLength The number of valid bytes in |aAddress|
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* @param[out] aAddressString The resulting string
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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 ConvertAddressToString(const struct sockaddr& aAddress,
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socklen_t aAddressLength,
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nsACString& aAddressString) = 0;
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/**
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* Creates a listening socket. I/O thread only.
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*
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* @param[out] aAddress The listening socket's address
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* @param[out] aAddressLength The number of valid bytes in |aAddress|
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* @param[out] aListenFd The socket's file descriptor
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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 CreateListenSocket(struct sockaddr* aAddress,
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socklen_t* aAddressLength,
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int& aListenFd) = 0;
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/**
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* Accepts a stream socket from a listening socket. I/O thread only.
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*
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* @param aListenFd The listening socket
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* @param[out] aAddress Returns the stream socket's address
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* @param[out] aAddressLength Returns the number of valid bytes in |aAddress|
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* @param[out] aStreamFd The stream socket's file descriptor
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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 AcceptStreamSocket(int aListenFd,
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struct sockaddr* aAddress,
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socklen_t* aAddressLen,
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int& aStreamFd) = 0;
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/**
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* Creates a stream socket. I/O thread only.
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*
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* @param[in|out] aAddress The stream socket's address
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* @param[in|out] aAddressLength The number of valid bytes in |aAddress|
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* @param[out] aStreamFd The socket's file descriptor
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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 CreateStreamSocket(struct sockaddr* aAddress,
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socklen_t* aAddressLength,
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int& aStreamFd) = 0;
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/**
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* Copies the instance of |UnixSocketConnector|. I/O thread only.
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*
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* @param[in] aConnector Returns a new instance of the connector class
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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 Duplicate(UnixSocketConnector*& aConnector) = 0;
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protected:
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UnixSocketConnector();
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};
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}
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}
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#endif
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