/* -*- 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 "ClientHandleChild.h"

#include "ClientHandleOpChild.h"
#include "mozilla/dom/ClientIPCTypes.h"

namespace mozilla {
namespace dom {

using mozilla::ipc::IPCResult;

void
ClientHandleChild::ActorDestroy(ActorDestroyReason aReason)
{
  if (mHandle) {
    mHandle->RevokeActor(this);

    // Revoking the actor link should automatically cause the owner
    // to call RevokeOwner() as well.
    MOZ_DIAGNOSTIC_ASSERT(!mHandle);
  }
}

PClientHandleOpChild*
ClientHandleChild::AllocPClientHandleOpChild(const ClientOpConstructorArgs& aArgs)
{
  MOZ_ASSERT_UNREACHABLE("ClientHandleOpChild must be explicitly constructed.");
  return nullptr;
}

bool
ClientHandleChild::DeallocPClientHandleOpChild(PClientHandleOpChild* aActor)
{
  delete aActor;
  return true;
}

ClientHandleChild::ClientHandleChild()
  : mHandle(nullptr)
  , mTeardownStarted(false)
{
}

void
ClientHandleChild::SetOwner(ClientThing<ClientHandleChild>* aThing)
{
  MOZ_DIAGNOSTIC_ASSERT(!mHandle);
  mHandle = aThing;
  MOZ_DIAGNOSTIC_ASSERT(mHandle);
}

void
ClientHandleChild::RevokeOwner(ClientThing<ClientHandleChild>* aThing)
{
  MOZ_DIAGNOSTIC_ASSERT(mHandle);
  MOZ_DIAGNOSTIC_ASSERT(mHandle == aThing);
  mHandle = nullptr;
}

void
ClientHandleChild::MaybeStartTeardown()
{
  if (mTeardownStarted) {
    return;
  }
  mTeardownStarted = true;
  Unused << SendTeardown();
}

} // namespace dom
} // namespace mozilla
