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03ffca06a1
This is the first use of IPCBlob: ClonedMessageData. ClonedMessageData is used for BroadcastChannel, MessagePort and any postMessage() communication. This patch changes StructuredCloneData in order to use IPCBlob instead of PBlob. BroadcastChannel has a custom way to manage Blobs because when the parent receives them from a content process, it must send them to any other BroadcastChild actor duplicating the serialization.
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 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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#include "BroadcastChannelParent.h"
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#include "BroadcastChannelService.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/IPCBlobUtils.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "mozilla/ipc/IPCStreamUtils.h"
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#include "mozilla/Unused.h"
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#include "nsIScriptSecurityManager.h"
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namespace mozilla {
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using namespace ipc;
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namespace dom {
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BroadcastChannelParent::BroadcastChannelParent(const nsAString& aOriginChannelKey)
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: mService(BroadcastChannelService::GetOrCreate())
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, mOriginChannelKey(aOriginChannelKey)
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{
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AssertIsOnBackgroundThread();
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mService->RegisterActor(this, mOriginChannelKey);
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}
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BroadcastChannelParent::~BroadcastChannelParent()
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{
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AssertIsOnBackgroundThread();
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}
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mozilla::ipc::IPCResult
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BroadcastChannelParent::RecvPostMessage(const ClonedMessageData& aData)
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{
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AssertIsOnBackgroundThread();
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if (NS_WARN_IF(!mService)) {
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return IPC_FAIL_NO_REASON(this);
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}
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mService->PostMessage(this, aData, mOriginChannelKey);
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return IPC_OK();
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}
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mozilla::ipc::IPCResult
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BroadcastChannelParent::RecvClose()
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{
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AssertIsOnBackgroundThread();
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if (NS_WARN_IF(!mService)) {
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return IPC_FAIL_NO_REASON(this);
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}
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mService->UnregisterActor(this, mOriginChannelKey);
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mService = nullptr;
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Unused << Send__delete__(this);
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return IPC_OK();
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}
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void
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BroadcastChannelParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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AssertIsOnBackgroundThread();
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if (mService) {
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// This object is about to be released and with it, also mService will be
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// released too.
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mService->UnregisterActor(this, mOriginChannelKey);
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}
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}
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} // namespace dom
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} // namespace mozilla
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