зеркало из https://github.com/mozilla/gecko-dev.git
48 строки
1.7 KiB
Plaintext
48 строки
1.7 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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include protocol PBackground;
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include protocol PContent;
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include protocol PSocketProcess;
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include "mozilla/layers/WebRenderMessageUtils.h";
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using mozilla::wr::ByteBuffer from "mozilla/webrender/WebRenderTypes.h";
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namespace mozilla {
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namespace ipc {
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// This is protocol is the opposite of PChildToParentStream. Please keep these
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// protocols in sync.
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protocol PParentToChildStream
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{
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manager PBackground or PContent or PSocketProcess;
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child:
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async Buffer(ByteBuffer aBuffer);
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async Close(nsresult aRv);
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parent:
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// The remote stream can be used in 2 ways: it can start receiving data
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// immediately after the creation of the child actor, or it can wait until
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// the child stream is actually used. This second configuration is enabled by
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// passing 'true' to delayedStart in AutoIPCStream CTOR.
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// If we are delaying the reading, at the first use of the remote stream, we
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// must activate the sending of data. This happens by calling this method.
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async StartReading();
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// The parent side has hit an error condition and has requested the child
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// actor issue a Close() message. The close must be initiated by the child
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// to avoid racing with an in-flight Buffer() message.
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async RequestClose(nsresult aRv);
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// Stream is always destroyed from the parent side. This occurs if the
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// parent encounters an error while writing to its pipe or if the child
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// signals the stream should close by SendClose().
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async __delete__();
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};
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} // namespace ipc
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} // namespace mozilla
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