dom/messagechannel/MessagePortChild.cpp
author Nika Layzell <nika@thelayzells.com>
Thu, 06 Aug 2020 14:04:13 +0000
changeset 544125 ee09cb88af177571304759bc05c760e3d82fd1ed
parent 511610 b55456d966a4c7d70a88f66dbaef40da3baa2a57
permissions -rw-r--r--
Bug 1656854 - Part 2: Add a BrowsingContextGroup keepalive to BrowserParent shutdown, r=farre In bug 1652085, I added BrowsingContextGroup keepalives while waiting for replies to the discard message, however that message isn't actually sent to the current owner process. Instead, the BrowsingContext is discarded by the PBrowser being destroyed. This should help ensure we also keep the group alive during normal BrowserParent destruction. Differential Revision: https://phabricator.services.mozilla.com/D85897

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "MessagePortChild.h"
#include "MessagePort.h"
#include "mozilla/dom/MessageEvent.h"
#include "mozilla/ipc/PBackgroundChild.h"

namespace mozilla {
namespace dom {

MessagePortChild::MessagePortChild() : mPort(nullptr) {}

mozilla::ipc::IPCResult MessagePortChild::RecvStopSendingDataConfirmed() {
  MOZ_ASSERT(mPort);
  mPort->StopSendingDataConfirmed();
  MOZ_ASSERT(!mPort);
  return IPC_OK();
}

mozilla::ipc::IPCResult MessagePortChild::RecvEntangled(
    nsTArray<MessageData>&& aMessages) {
  if (mPort) {
    mPort->Entangled(aMessages);
  }
  return IPC_OK();
}

mozilla::ipc::IPCResult MessagePortChild::RecvReceiveData(
    nsTArray<MessageData>&& aMessages) {
  if (mPort) {
    mPort->MessagesReceived(aMessages);
  }
  return IPC_OK();
}

void MessagePortChild::ActorDestroy(ActorDestroyReason aWhy) {
  if (mPort) {
    mPort->Closed();
    MOZ_ASSERT(!mPort);
  }
}

}  // namespace dom
}  // namespace mozilla