forked from mirrors/gecko-dev
3f2298c2f6
MozReview-Commit-ID: 666LNaHyiuQ --HG-- extra : rebase_source : f3a24e0342d8dcdf9020dd473bc6b1045cbc533b
91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et ft=cpp : */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_net_IPCTransportProvider_h
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#define mozilla_net_IPCTransportProvider_h
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#include "nsISupportsImpl.h"
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#include "mozilla/net/PTransportProviderParent.h"
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#include "mozilla/net/PTransportProviderChild.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsITransportProvider.h"
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/*
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* No, the ownership model for TransportProvider is that the child object is
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* refcounted "normally". I.e. ipdl code doesn't hold a strong reference to
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* TransportProviderChild.
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*
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* When TransportProviderChild goes away, it sends a __delete__ message to the
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* parent.
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*
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* On the parent side, ipdl holds a strong reference to TransportProviderParent.
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* When the actor is deallocatde it releases the reference to the
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* TransportProviderParent.
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*
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* So effectively the child holds a strong reference to the parent, and are
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* otherwise normally refcounted and have their lifetime determined by that
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* refcount.
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*
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* The only other caveat is that the creation happens from the parent.
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* So to create a TransportProvider, a constructor is sent from the parent to
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* the child. At this time the child gets its first addref.
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*
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* A reference to the TransportProvider is then sent as part of some other
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* message from the parent to the child.
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*
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* The receiver of that message can then grab the TransportProviderChild and
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* without addreffing it, effectively using the refcount that the
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* TransportProviderChild got on creation.
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*/
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class nsISocketTransport;
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class nsIAsyncInputStream;
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class nsIAsyncOutputStream;
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namespace mozilla {
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namespace net {
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class TransportProviderParent final : public PTransportProviderParent
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, public nsITransportProvider
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, public nsIHttpUpgradeListener
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{
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public:
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TransportProviderParent() = default;
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NS_DECL_ISUPPORTS
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NS_DECL_NSITRANSPORTPROVIDER
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NS_DECL_NSIHTTPUPGRADELISTENER
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void ActorDestroy(ActorDestroyReason aWhy) override {};
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private:
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~TransportProviderParent() = default;
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void MaybeNotify();
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nsCOMPtr<nsIHttpUpgradeListener> mListener;
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nsCOMPtr<nsISocketTransport> mTransport;
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nsCOMPtr<nsIAsyncInputStream> mSocketIn;
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nsCOMPtr<nsIAsyncOutputStream> mSocketOut;
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};
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class TransportProviderChild final : public PTransportProviderChild
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, public nsITransportProvider
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{
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public:
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TransportProviderChild() = default;
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NS_DECL_ISUPPORTS
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NS_DECL_NSITRANSPORTPROVIDER
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private:
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~TransportProviderChild();
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};
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} // namespace net
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} // namespace mozilla
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#endif
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