File: SharedMessagePortMessage.cpp

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/* -*- 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 "SharedMessagePortMessage.h"
#include "MessagePort.h"
#include "MessagePortChild.h"
#include "MessagePortParent.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/PMessagePort.h"
#include "mozilla/ipc/BackgroundChild.h"
#include "mozilla/ipc/BackgroundParent.h"

namespace mozilla {

using namespace ipc;

namespace dom {

/* static */ void SharedMessagePortMessage::FromSharedToMessagesChild(
    MessagePortChild* aActor,
    const nsTArray<RefPtr<SharedMessagePortMessage>>& aData,
    nsTArray<ClonedMessageData>& aArray) {
  MOZ_ASSERT(aActor);
  MOZ_ASSERT(aArray.IsEmpty());
  aArray.SetCapacity(aData.Length());

  PBackgroundChild* backgroundManager = aActor->Manager();
  MOZ_ASSERT(backgroundManager);

  for (auto& data : aData) {
    ClonedMessageData* message = aArray.AppendElement();
    data->BuildClonedMessageDataForBackgroundChild(backgroundManager, *message);
  }
}

/* static */ bool SharedMessagePortMessage::FromMessagesToSharedChild(
    nsTArray<ClonedMessageData>& aArray,
    FallibleTArray<RefPtr<SharedMessagePortMessage>>& aData) {
  MOZ_ASSERT(aData.IsEmpty());

  if (NS_WARN_IF(!aData.SetCapacity(aArray.Length(), mozilla::fallible))) {
    return false;
  }

  for (auto& message : aArray) {
    RefPtr<SharedMessagePortMessage> data = new SharedMessagePortMessage();
    data->StealFromClonedMessageDataForBackgroundChild(message);

    if (!aData.AppendElement(data, mozilla::fallible)) {
      return false;
    }
  }

  return true;
}

/* static */ bool SharedMessagePortMessage::FromSharedToMessagesParent(
    MessagePortParent* aActor,
    const nsTArray<RefPtr<SharedMessagePortMessage>>& aData,
    FallibleTArray<ClonedMessageData>& aArray) {
  MOZ_ASSERT(aArray.IsEmpty());

  if (NS_WARN_IF(!aArray.SetCapacity(aData.Length(), mozilla::fallible))) {
    return false;
  }

  PBackgroundParent* backgroundManager = aActor->Manager();
  MOZ_ASSERT(backgroundManager);

  for (auto& data : aData) {
    ClonedMessageData* message = aArray.AppendElement(mozilla::fallible);
    data->BuildClonedMessageDataForBackgroundParent(backgroundManager,
                                                    *message);
  }

  return true;
}

/* static */ bool SharedMessagePortMessage::FromMessagesToSharedParent(
    nsTArray<ClonedMessageData>& aArray,
    FallibleTArray<RefPtr<SharedMessagePortMessage>>& aData) {
  MOZ_ASSERT(aData.IsEmpty());

  if (NS_WARN_IF(!aData.SetCapacity(aArray.Length(), mozilla::fallible))) {
    return false;
  }

  for (auto& message : aArray) {
    RefPtr<SharedMessagePortMessage> data = new SharedMessagePortMessage();
    data->StealFromClonedMessageDataForBackgroundParent(message);

    if (!aData.AppendElement(data, mozilla::fallible)) {
      return false;
    }
  }

  return true;
}

}  // namespace dom
}  // namespace mozilla