WebTransportSendStream.h

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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 DOM_WEBTRANSPORT_API_WEBTRANSPORTSENDSTREAM__H_

#define DOM_WEBTRANSPORT_API_WEBTRANSPORTSENDSTREAM__H_

#include "mozilla/dom/WritableStream.h"

namespace mozilla::ipc {

class DataPipeSender;

namespace mozilla::dom {

class WebTransport;

class WebTransportSendStream final : public WritableStream {

 public:

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(WebTransportSendStream,

                                           WritableStream)

  WebTransportSendStream(nsIGlobalObject* aGlobal, WebTransport* aTransport);

  static already_AddRefed<WebTransportSendStream> Create(

      WebTransport* aWebTransport, nsIGlobalObject* aGlobal, uint64_t aStreamId,

      mozilla::ipc::DataPipeSender* aSender, Maybe<int64_t> aSendOrder,

      ErrorResult& aRv);

  // WebIDL Boilerplate

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  // WebIDL Interface

  Nullable<int64_t> GetSendOrder() { return mSendOrder; }

  void SetSendOrder(Nullable<int64_t> aSendOrder);

  already_AddRefed<Promise> GetStats();

 private:

  ~WebTransportSendStream() override { mozilla::DropJSObjects(this); };

  // We must hold a reference to the WebTransport so it can't go away on

  // us.  This forms a cycle with WebTransport that will be broken when the

  // CC runs.   WebTransport::CleanUp() will destroy all the send and receive

  // streams, breaking the cycle.

  RefPtr<WebTransport> mTransport;

  uint64_t mStreamId;

  Nullable<int64_t> mSendOrder;

};

}  // namespace mozilla::dom

#endif