зеркало из https://github.com/mozilla/pjs.git
101 строка
3.6 KiB
Plaintext
101 строка
3.6 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#include "nsIStreamObserver.idl"
|
|
|
|
interface nsIChannel;
|
|
interface nsIInputStream;
|
|
interface nsIOutputStream;
|
|
interface nsIEventQueue;
|
|
|
|
/**
|
|
* The nsIChannel::AsyncWrite notification handler. It provides
|
|
* data to the channel, when the channel is ready to accept it.
|
|
*/
|
|
[scriptable, uuid(d10ef7a9-b728-43d4-9c49-74172186d691)]
|
|
interface nsIStreamProvider : nsIStreamObserver
|
|
{
|
|
/**
|
|
* Called when data may be written to the channel.
|
|
*
|
|
* @param request - the request returned by AsyncWrite
|
|
* @param ctxt - opaque parameter passed to AsyncWrite
|
|
* @param output - output stream for writing data chunk
|
|
* @param offset - current stream position (informational)
|
|
* @param count - number of bytes that can be written without blocking
|
|
*
|
|
* @return NS_OK - if successfully wrote something.
|
|
* @return NS_BASE_STREAM_CLOSED - if done writing data. NOTE: this is
|
|
* NOT equivalent to writing zero bytes and returning NS_OK.
|
|
* @return NS_BASE_STREAM_WOULD_BLOCK - if no data can be written at
|
|
* this time. This implicitly calls Suspend on the channel. Call
|
|
* Resume on the channel to continue the AsyncWrite when more data
|
|
* becomes available.
|
|
* @return <other-error> - if failure.
|
|
*/
|
|
void onDataWritable(in nsIRequest request,
|
|
in nsISupports ctxt,
|
|
in nsIOutputStream output,
|
|
in unsigned long offset,
|
|
in unsigned long count);
|
|
};
|
|
|
|
/**
|
|
* A stream provider proxy is used to ship data over to another thread specified
|
|
* by the thread's event queue. The "true" stream provider's methods are
|
|
* invoked on the other thread.
|
|
*
|
|
* This interface only provides the initialization needed after construction.
|
|
* Otherwise, these objects may be used as a nsIStreamProvider.
|
|
*/
|
|
[scriptable, uuid(5c3b0bac-605a-49ac-880e-5c8b993f7d2b)]
|
|
interface nsIStreamProviderProxy : nsIStreamProvider
|
|
{
|
|
/**
|
|
* Initializes an nsIStreamProviderProxy.
|
|
*
|
|
* @param provider - receives provider notifications on the other thread.
|
|
* @param eventQ - may be NULL indicating the calling thread's event queue.
|
|
*/
|
|
void init(in nsIStreamProvider provider,
|
|
in nsIEventQueue eventQ,
|
|
in unsigned long bufferSegmentSize,
|
|
in unsigned long bufferMaxSize);
|
|
};
|
|
|
|
/**
|
|
* A simple stream provider can be used with AsyncWrite to supply data from
|
|
* an existing input stream.
|
|
*/
|
|
[scriptable, uuid(c20bb3b9-0755-4eff-9222-3537f9e89082)]
|
|
interface nsISimpleStreamProvider : nsIStreamProvider
|
|
{
|
|
/**
|
|
* Initialize the simple stream provider.
|
|
*
|
|
* @param - data will be read from this input stream to the channel
|
|
* @param - optional stream observer (can be NULL)
|
|
*/
|
|
void init(in nsIInputStream source,
|
|
in nsIStreamObserver observer);
|
|
};
|