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116 lines
4.2 KiB
C++
116 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsITransport_h___
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#define nsITransport_h___
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#include "nscore.h"
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#include "nsISupports.h"
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#include "prio.h"
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#include "nsIStreamListener.h"
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#include "nsIOutputStream.h"
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#include "nsIURL.h"
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#define NS_ITRANSPORT_IID \
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{ 0x54ae75a0, 0x99e8, 0x11d2, \
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{0xb9, 0x47, 0x00, 0x80, 0x5f, 0x52, 0x35, 0x1a} }
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class nsITransport : public nsIStreamListener {
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_ITRANSPORT_IID; return iid; }
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/** Accessors */
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/**
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* Returns the URL that is associated with the Transport.
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*
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* If the transport doesn't have URL associated with it
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* because it was constructed by passing host and port,
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* it will return NULL.
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*
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* @param result the URL that was used to build the transport
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* @return The return value is currently ignored.
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*/
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NS_IMETHOD GetURL(nsIURL* *result) = 0;
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/**
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* Sets up the InputStreamListener. Transport layer will notify this
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* consumer when it writes data from the socket into its input stream.
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*
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* @param aListener: The InputStreamConsumer provided by the protocol
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* instance which the transport layer should use for input stream
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* notifications. The transport layer assumes responsibility for
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* building a stream listener proxy for the protocol's listener.
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*
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* @return The return value is currently ignored.
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*/
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NS_IMETHOD SetInputStreamConsumer(nsIStreamListener* listener) = 0;
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/**
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* Returns a proxied stream listener which the transport layer expects
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* notifications through for the output stream. The protocol will bind the
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* listener returned to its output stream where it writes data it wants
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* sent through the transport layer.
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* As with the input stream consumer case, the transport layer returns a
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* proxied consumer.
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*
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* @return aConsumer: The proxied transport layer's consumer for the
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* protocol's output stream.
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*/
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NS_IMETHOD GetOutputStreamConsumer(nsIStreamListener ** aConsumer) = 0;
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/**
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* Returns an output stream which the protocol instance should write data
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* it wants transmitted through the transport layer into. After writing data
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* to this stream, the protocol should notify the output stream consumer.
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* This informs the transport layer that data is available.
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*
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* @param aOutputStream: The output stream the protocol will write data for
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* transmission into.
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*
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* @return NS_FAILURE if the stream could not be returned.
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*/
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NS_IMETHOD GetOutputStream(nsIOutputStream ** aOutputStream) = 0;
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/**
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* Returns true if the transport has been opened already and FALSE otherwise.
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* If a transport has not been opened yet, then you should open it using
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* Open(nsIURL *).
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**/
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NS_IMETHOD IsTransportOpen(PRBool * aSocketOpen) = 0;
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/**
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* This replaces LoadUrl. Before using a transport, you should open the transport.
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* This functionality may go away after we remove the reliance on sock stub. You
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* should always call open the first time you want to use the transport in order to
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* open its underlying object (file, socket, etc.). You can later issue a ::StopBinding
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* call on the transport which should cause the underlying object (file, socket, etc.) to
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* be closed. You could then open the transport again with another URL. Note, for sockets,
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* if you wish to re-use a connection, you shouldn't call StopBinding on it as this would
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* cause the connection to be closed...
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**/
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NS_IMETHOD Open(nsIURL * aUrl) = 0;
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};
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#endif /* nsITransport_h___ */
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