ClientDOMUtil.h - mozsearch

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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/. */

#ifndef _mozilla_dom_ClientDOMUtil_h

#define _mozilla_dom_ClientDOMUtil_h

#include "mozilla/dom/ClientIPCTypes.h"

#include "mozilla/dom/ClientOpPromise.h"

#include "mozilla/dom/DOMMozPromiseRequestHolder.h"

#include "mozilla/dom/WorkerPrivate.h"

class nsIGlobalObject;

namespace mozilla::dom {

// Utility method to properly execute a ClientManager operation.  It

// will properly hold a worker thread alive and avoid executing callbacks

// if the thread is shutting down.

template <typename Func, typename Arg, typename Resolve, typename Reject>

void StartClientManagerOp(Func aFunc, const Arg& aArg, nsIGlobalObject* aGlobal,

                          Resolve aResolve, Reject aReject) {

  MOZ_DIAGNOSTIC_ASSERT(aGlobal);

  nsCOMPtr<nsISerialEventTarget> target = aGlobal->SerialEventTarget();

  auto holder =

      MakeRefPtr<DOMMozPromiseRequestHolder<ClientOpPromise>>(aGlobal);

  aFunc(aArg, target)

      ->Then(

          target, __func__,

          [aResolve, holder](const ClientOpResult& aResult) {

            holder->Complete();

            aResolve(aResult);

},

          [aReject, holder](const CopyableErrorResult& aResult) {

            holder->Complete();

            aReject(aResult);

})

      ->Track(*holder);

}  // namespace mozilla::dom

#endif  // _mozilla_dom_ClientDOMUtil_h