mirror of
https://github.com/mozilla/gecko-dev.git
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87 lines
3.2 KiB
C++
87 lines
3.2 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/JSProcessActorParent.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(JSProcessActorParent, JSActor, mManager)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(JSProcessActorParent, JSActor)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSProcessActorParent)
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NS_INTERFACE_MAP_END_INHERITING(JSActor)
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NS_IMPL_ADDREF_INHERITED(JSProcessActorParent, JSActor)
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NS_IMPL_RELEASE_INHERITED(JSProcessActorParent, JSActor)
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JSObject* JSProcessActorParent::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return JSProcessActorParent_Binding::Wrap(aCx, this, aGivenProto);
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}
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void JSProcessActorParent::Init(const nsACString& aName,
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ContentParent* aManager) {
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MOZ_ASSERT(!mManager, "Cannot Init() a JSProcessActorParent 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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JSProcessActorParent::~JSProcessActorParent() { MOZ_ASSERT(!mManager); }
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void JSProcessActorParent::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(!mCanSend || !mManager || !mManager->CanSend())) {
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aRv.ThrowInvalidStateError(
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nsPrintfCString("Actor '%s' cannot send message '%s' during shutdown.",
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PromiseFlatCString(aMeta.actorName()).get(),
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NS_ConvertUTF16toUTF8(aMeta.messageName()).get()));
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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.ThrowDataError(nsPrintfCString(
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"Actor '%s' cannot send message '%s': message too long.",
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PromiseFlatCString(aMeta.actorName()).get(),
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NS_ConvertUTF16toUTF8(aMeta.messageName()).get()));
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return;
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}
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// Cross-process case - send data over ContentParent to other side.
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ClonedMessageData msgData;
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ClonedMessageData stackData;
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if (NS_WARN_IF(!aData.BuildClonedMessageDataForParent(mManager, msgData)) ||
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NS_WARN_IF(
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!aStack.BuildClonedMessageDataForParent(mManager, stackData))) {
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aRv.ThrowDataCloneError(
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nsPrintfCString("Actor '%s' cannot send message '%s': cannot clone.",
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PromiseFlatCString(aMeta.actorName()).get(),
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NS_ConvertUTF16toUTF8(aMeta.messageName()).get()));
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return;
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}
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if (NS_WARN_IF(!mManager->SendRawMessage(aMeta, msgData, stackData))) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return;
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}
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}
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void JSProcessActorParent::AfterDestroy() {
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JSActor::AfterDestroy();
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mManager = nullptr;
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}
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} // namespace dom
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} // namespace mozilla
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