forked from mirrors/gecko-dev
b830ea1f6d
This patch prevents the following error: AltDataOutputStreamChild::Close -> SendClose() AltDataOutputStreamChild::Release -> Send__delete__() AltDataOutputStreamParent::RecvClose() -> SendError() AltDataOutputStreamParent::ActorDestroy -> mIPCOpen = false AltDataOutputStreamChild::RecvError -> === Crash - object was deleted === We introduce the DeleteSelf message. AltDataOutputStreamChild::Release -> SendDeleteSelf() AltDataOutputStreamParent::RecvDeleteSelf -> mIPCOpen = false; SendDeleteSelf() AltDataOutputStreamChild::RecvDeleteSelf -> Send__delete__() The parent will not send any more messages after receiving the DeleteSelf message. MozReview-Commit-ID: I9RQ5I7eSt9 --HG-- extra : rebase_source : 8f918d24595248149ebd3857e05e38dc5237059b
54 lines
1.8 KiB
C++
54 lines
1.8 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 tw=80 : */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_net_AltDataOutputStreamParent_h
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#define mozilla_net_AltDataOutputStreamParent_h
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#include "mozilla/net/PAltDataOutputStreamParent.h"
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#include "nsIOutputStream.h"
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namespace mozilla {
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namespace net {
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// Forwards data received from the content process to an output stream.
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class AltDataOutputStreamParent
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: public PAltDataOutputStreamParent
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, public nsISupports
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{
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public:
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NS_DECL_ISUPPORTS
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// Called from NeckoParent::AllocPAltDataOutputStreamParent which also opens
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// the output stream.
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// aStream may be null
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explicit AltDataOutputStreamParent(nsIOutputStream* aStream);
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// Called when data is received from the content process.
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// We proceed to write that data to the output stream.
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virtual mozilla::ipc::IPCResult RecvWriteData(const nsCString& data) override;
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// Called when AltDataOutputStreamChild::Close() is
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// Closes and nulls the output stream.
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virtual mozilla::ipc::IPCResult RecvClose() override;
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virtual void ActorDestroy(ActorDestroyReason aWhy) override;
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// Sets an error that will be reported to the content process.
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void SetError(nsresult status) { mStatus = status; }
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virtual mozilla::ipc::IPCResult RecvDeleteSelf() override;
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private:
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virtual ~AltDataOutputStreamParent();
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nsCOMPtr<nsIOutputStream> mOutputStream;
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// In case any error occurs mStatus will be != NS_OK, and this status code will
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// be sent to the content process asynchronously.
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nsresult mStatus;
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bool mIPCOpen;
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};
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} // namespace net
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} // namespace mozilla
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#endif // mozilla_net_AltDataOutputStreamParent_h
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