forked from mirrors/gecko-dev
91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 "mozilla/dom/JSProcessActorBinding.h"
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#include "mozilla/dom/JSProcessActorChild.h"
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#include "mozilla/dom/InProcessChild.h"
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#include "mozilla/dom/InProcessParent.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(JSProcessActorChild, JSActor, mManager)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(JSProcessActorChild, JSActor)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSProcessActorChild)
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NS_INTERFACE_MAP_END_INHERITING(JSActor)
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NS_IMPL_ADDREF_INHERITED(JSProcessActorChild, JSActor)
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NS_IMPL_RELEASE_INHERITED(JSProcessActorChild, JSActor)
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JSObject* JSProcessActorChild::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return JSProcessActorChild_Binding::Wrap(aCx, this, aGivenProto);
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}
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void JSProcessActorChild::SendRawMessage(const JSActorMessageMeta& aMeta,
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ipc::StructuredCloneData&& aData,
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ipc::StructuredCloneData&& aStack,
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ErrorResult& aRv) {
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if (NS_WARN_IF(!CanSend() || !mManager || !mManager->GetCanSend())) {
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aRv.ThrowInvalidStateError("JSProcessActorChild cannot send at the moment");
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return;
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}
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if (NS_WARN_IF(
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!AllowMessage(aMeta, aData.DataLength() + aStack.DataLength()))) {
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aRv.ThrowDataCloneError(
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nsPrintfCString("JSProcessActorChild serialization error: data too "
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"large, in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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// If the parent side is in the same process, we have a PInProcess manager,
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// and can dispatch the message directly to the event loop.
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ContentChild* contentChild = mManager->AsContentChild();
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if (!contentChild) {
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SendRawMessageInProcess(aMeta, std::move(aData), std::move(aStack), []() {
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return do_AddRef(InProcessParent::Singleton());
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});
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return;
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}
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ClonedMessageData msgData;
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ClonedMessageData stackData;
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if (NS_WARN_IF(
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!aData.BuildClonedMessageDataForChild(contentChild, msgData)) ||
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NS_WARN_IF(
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!aStack.BuildClonedMessageDataForChild(contentChild, stackData))) {
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aRv.ThrowDataCloneError(nsPrintfCString(
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"JSProcessActorChild serialization error: cannot clone, in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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if (NS_WARN_IF(!contentChild->SendRawMessage(aMeta, msgData, stackData))) {
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aRv.ThrowOperationError(
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nsPrintfCString("JSProcessActorChild send error in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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}
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void JSProcessActorChild::Init(const nsACString& aName,
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nsIDOMProcessChild* aManager) {
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MOZ_ASSERT(!mManager, "Cannot Init() a JSProcessActorChild twice!");
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SetName(aName);
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mManager = aManager;
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InvokeCallback(CallbackFunction::ActorCreated);
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}
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void JSProcessActorChild::ClearManager() { mManager = nullptr; }
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} // namespace dom
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} // namespace mozilla
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