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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_WEBTRANSPORT__H_
#define DOM_WEBTRANSPORT_API_WEBTRANSPORT__H_
#include "nsCOMPtr.h"
#include "nsISupports.h"
#include "nsWrapperCache.h"
#include "mozilla/dom/WebTransportBinding.h"
#include "mozilla/dom/WebTransportChild.h"
namespace mozilla::dom {
class WebTransportDatagramDuplexStream;
class ReadableStream;
class WritableStream;
class WebTransport final : public nsISupports, public nsWrapperCache {
public:
explicit WebTransport(nsIGlobalObject* aGlobal);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(WebTransport)
enum class WebTransportState { CONNECTING, CONNECTED, CLOSED, FAILED };
bool Init(const GlobalObject& aGlobal, const nsAString& aUrl,
const WebTransportOptions& aOptions, ErrorResult& aError);
void ResolveWaitingConnection(WebTransportReliabilityMode aReliability,
WebTransportChild* aChild);
void RejectWaitingConnection(nsresult aRv);
bool ParseURL(const nsAString& aURL) const;
// WebIDL Boilerplate
nsIGlobalObject* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL Interface
static already_AddRefed<WebTransport> Constructor(
const GlobalObject& aGlobal, const nsAString& aUrl,
const WebTransportOptions& aOptions, ErrorResult& aRv);
already_AddRefed<Promise> GetStats(ErrorResult& aError);
already_AddRefed<Promise> Ready();
WebTransportReliabilityMode Reliability();
WebTransportCongestionControl CongestionControl();
already_AddRefed<Promise> Closed();
void Close(const WebTransportCloseInfo& aOptions);
already_AddRefed<WebTransportDatagramDuplexStream> Datagrams();
already_AddRefed<Promise> CreateBidirectionalStream(ErrorResult& aError);
already_AddRefed<ReadableStream> IncomingBidirectionalStreams();
already_AddRefed<Promise> CreateUnidirectionalStream(ErrorResult& aError);
already_AddRefed<ReadableStream> IncomingUnidirectionalStreams();
void Shutdown() {}
private:
~WebTransport() {
// Should be empty by this point, because we should always have run cleanup:
// https://w3c.github.io/webtransport/#webtransport-procedures
MOZ_ASSERT(mSendStreams.IsEmpty());
MOZ_ASSERT(mReceiveStreams.IsEmpty());
// If this WebTransport was destroyed without being closed properly, make
// sure to clean up the channel.
if (mChild) {
mChild->Shutdown();
}
}
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<WebTransportChild> mChild;
// Spec-defined slots:
// ordered sets, but we can't have duplicates, and this spec only appends.
// Order is visible due to
// https://w3c.github.io/webtransport/#webtransport-procedures step 10: "For
// each sendStream in sendStreams, error sendStream with error."
// XXX Use nsTArray.h for now, but switch to OrderHashSet/Table for release to
// improve remove performance (if needed)
nsTArray<RefPtr<WritableStream>> mSendStreams;
nsTArray<RefPtr<ReadableStream>> mReceiveStreams;
WebTransportState mState;
RefPtr<Promise> mReady;
WebTransportReliabilityMode mReliability;
// These are created in the constructor
RefPtr<ReadableStream> mIncomingUnidirectionalStreams;
RefPtr<ReadableStream> mIncomingBidirectionalStreams;
RefPtr<WebTransportDatagramDuplexStream> mDatagrams;
RefPtr<Promise> mClosed;
};
} // namespace mozilla::dom
#endif
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