зеркало из https://github.com/mozilla/gecko-dev.git
73 строки
2.6 KiB
Plaintext
73 строки
2.6 KiB
Plaintext
/* 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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#include "nsISupports.idl"
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interface nsIChannel;
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interface nsIParentChannel;
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/**
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* Used on the chrome process as a service to join channel implementation
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* and parent IPC protocol side under a unique id. Provides this way a generic
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* communication while redirecting to various protocols.
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*
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* See also nsIChildChannel and nsIParentChannel.
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*/
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[scriptable, uuid (efa36ea2-5b07-46fc-9534-a5acb8b77b72)]
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interface nsIRedirectChannelRegistrar : nsISupports
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{
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/**
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* Register the redirect target channel and obtain a unique ID for that
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* channel.
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*
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* Primarily used in HttpChannelParentListener::AsyncOnChannelRedirect to get
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* a channel id sent to the HttpChannelChild being redirected.
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*/
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uint32_t registerChannel(in nsIChannel channel);
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/**
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* First, search for the channel registered under the id. If found return
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* it. Then, register under the same id the parent side of IPC protocol
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* to let it be later grabbed back by the originator of the redirect and
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* notifications from the real channel could be forwarded to this parent
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* channel.
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*
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* Primarily used in parent side of an IPC protocol implementation
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* in reaction to nsIChildChannel.connectParent(id) called from the child
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* process.
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*/
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nsIChannel linkChannels(in uint32_t id, in nsIParentChannel channel);
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/**
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* Returns back the channel previously registered under the ID with
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* registerChannel method.
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*
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* Primarilly used in chrome IPC side of protocols when attaching a redirect
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* target channel to an existing 'real' channel implementation.
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*/
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nsIChannel getRegisteredChannel(in uint32_t id);
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/**
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* Returns the stream listener that shall be attached to the redirect target
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* channel, all notification from the redirect target channel will be
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* forwarded to this stream listener.
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*
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* Primarilly used in HttpChannelParentListener::OnRedirectResult callback
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* to grab the created parent side of the channel and forward notifications
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* to it.
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*/
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nsIParentChannel getParentChannel(in uint32_t id);
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/**
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* To not force all channel implementations to support weak reference
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* consumers of this service must ensure release of registered channels them
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* self. This releases both the real and parent channel registered under
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* the id.
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*
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* Primarilly used in HttpChannelParentListener::OnRedirectResult callback.
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*/
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void deregisterChannels(in uint32_t id);
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};
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