mirror of
https://github.com/classilla/tenfourfox.git
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229 lines
6.4 KiB
C++
229 lines
6.4 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "SharedMessagePortMessage.h"
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#include "MessagePort.h"
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#include "MessagePortChild.h"
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#include "MessagePortParent.h"
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#include "mozilla/dom/ipc/BlobChild.h"
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#include "mozilla/dom/ipc/BlobParent.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/PMessagePort.h"
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#include "mozilla/ipc/BackgroundChild.h"
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#include "mozilla/ipc/BackgroundParent.h"
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namespace mozilla {
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using namespace ipc;
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namespace dom {
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void
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SharedMessagePortMessage::Read(nsISupports* aParent,
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JSContext* aCx,
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JS::MutableHandle<JS::Value> aValue,
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ErrorResult& aRv)
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{
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if (mData.IsEmpty()) {
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return;
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}
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auto* data = reinterpret_cast<uint64_t*>(mData.Elements());
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size_t dataLen = mData.Length();
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MOZ_ASSERT(!(dataLen % sizeof(*data)));
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ReadFromBuffer(aParent, aCx, data, dataLen, aValue, aRv);
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NS_WARN_IF(aRv.Failed());
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Free();
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}
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void
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SharedMessagePortMessage::Write(JSContext* aCx,
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JS::Handle<JS::Value> aValue,
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JS::Handle<JS::Value> aTransfer,
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ErrorResult& aRv)
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{
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StructuredCloneHolder::Write(aCx, aValue, aTransfer, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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FallibleTArray<uint8_t> cloneData;
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MoveBufferDataToArray(cloneData, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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MOZ_ASSERT(mData.IsEmpty());
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mData.SwapElements(cloneData);
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}
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void
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SharedMessagePortMessage::Free()
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{
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if (!mData.IsEmpty()) {
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auto* data = reinterpret_cast<uint64_t*>(mData.Elements());
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size_t dataLen = mData.Length();
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MOZ_ASSERT(!(dataLen % sizeof(*data)));
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FreeBuffer(data, dataLen);
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mData.Clear();
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}
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}
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SharedMessagePortMessage::~SharedMessagePortMessage()
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{
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Free();
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}
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/* static */ void
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SharedMessagePortMessage::FromSharedToMessagesChild(
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MessagePortChild* aActor,
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const nsTArray<RefPtr<SharedMessagePortMessage>>& aData,
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nsTArray<MessagePortMessage>& aArray)
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{
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MOZ_ASSERT(aActor);
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MOZ_ASSERT(aArray.IsEmpty());
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aArray.SetCapacity(aData.Length());
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PBackgroundChild* backgroundManager = aActor->Manager();
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MOZ_ASSERT(backgroundManager);
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for (auto& data : aData) {
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MessagePortMessage* message = aArray.AppendElement();
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message->data().SwapElements(data->mData);
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const nsTArray<RefPtr<BlobImpl>>& blobImpls = data->BlobImpls();
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if (!blobImpls.IsEmpty()) {
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message->blobsChild().SetCapacity(blobImpls.Length());
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for (uint32_t i = 0, len = blobImpls.Length(); i < len; ++i) {
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PBlobChild* blobChild =
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BackgroundChild::GetOrCreateActorForBlobImpl(backgroundManager,
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blobImpls[i]);
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message->blobsChild().AppendElement(blobChild);
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}
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}
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message->transferredPorts().AppendElements(data->PortIdentifiers());
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}
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}
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/* static */ bool
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SharedMessagePortMessage::FromMessagesToSharedChild(
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nsTArray<MessagePortMessage>& aArray,
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FallibleTArray<RefPtr<SharedMessagePortMessage>>& aData)
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{
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MOZ_ASSERT(aData.IsEmpty());
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if (NS_WARN_IF(!aData.SetCapacity(aArray.Length(), mozilla::fallible))) {
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return false;
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}
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for (auto& message : aArray) {
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RefPtr<SharedMessagePortMessage> data = new SharedMessagePortMessage();
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data->mData.SwapElements(message.data());
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const nsTArray<PBlobChild*>& blobs = message.blobsChild();
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if (!blobs.IsEmpty()) {
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data->BlobImpls().SetCapacity(blobs.Length());
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for (uint32_t i = 0, len = blobs.Length(); i < len; ++i) {
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RefPtr<BlobImpl> impl =
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static_cast<BlobChild*>(blobs[i])->GetBlobImpl();
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data->BlobImpls().AppendElement(impl);
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}
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}
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data->PortIdentifiers().AppendElements(message.transferredPorts());
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if (!aData.AppendElement(data, mozilla::fallible)) {
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return false;
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}
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}
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return true;
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}
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/* static */ bool
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SharedMessagePortMessage::FromSharedToMessagesParent(
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MessagePortParent* aActor,
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const nsTArray<RefPtr<SharedMessagePortMessage>>& aData,
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FallibleTArray<MessagePortMessage>& aArray)
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{
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MOZ_ASSERT(aArray.IsEmpty());
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if (NS_WARN_IF(!aArray.SetCapacity(aData.Length(), mozilla::fallible))) {
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return false;
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}
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PBackgroundParent* backgroundManager = aActor->Manager();
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MOZ_ASSERT(backgroundManager);
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for (auto& data : aData) {
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MessagePortMessage* message = aArray.AppendElement(mozilla::fallible);
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message->data().SwapElements(data->mData);
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const nsTArray<RefPtr<BlobImpl>>& blobImpls = data->BlobImpls();
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if (!blobImpls.IsEmpty()) {
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message->blobsParent().SetCapacity(blobImpls.Length());
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for (uint32_t i = 0, len = blobImpls.Length(); i < len; ++i) {
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PBlobParent* blobParent =
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BackgroundParent::GetOrCreateActorForBlobImpl(backgroundManager,
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blobImpls[i]);
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message->blobsParent().AppendElement(blobParent);
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}
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}
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message->transferredPorts().AppendElements(data->PortIdentifiers());
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}
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return true;
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}
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/* static */ bool
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SharedMessagePortMessage::FromMessagesToSharedParent(
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nsTArray<MessagePortMessage>& aArray,
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FallibleTArray<RefPtr<SharedMessagePortMessage>>& aData)
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{
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MOZ_ASSERT(aData.IsEmpty());
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if (NS_WARN_IF(!aData.SetCapacity(aArray.Length(), mozilla::fallible))) {
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return false;
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}
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for (auto& message : aArray) {
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RefPtr<SharedMessagePortMessage> data = new SharedMessagePortMessage();
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data->mData.SwapElements(message.data());
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const nsTArray<PBlobParent*>& blobs = message.blobsParent();
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if (!blobs.IsEmpty()) {
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data->BlobImpls().SetCapacity(blobs.Length());
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for (uint32_t i = 0, len = blobs.Length(); i < len; ++i) {
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RefPtr<BlobImpl> impl =
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static_cast<BlobParent*>(blobs[i])->GetBlobImpl();
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data->BlobImpls().AppendElement(impl);
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}
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}
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data->PortIdentifiers().AppendElements(message.transferredPorts());
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if (!aData.AppendElement(data, mozilla::fallible)) {
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return false;
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}
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}
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return true;
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}
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} // namespace dom
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} // namespace mozilla
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