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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_WEBTRANSPORTDATAGRAMDUPLEXSTREAM__H_
#define DOM_WEBTRANSPORT_API_WEBTRANSPORTDATAGRAMDUPLEXSTREAM__H_
#include <utility>
#include "nsCOMPtr.h"
#include "nsISupports.h"
#include "nsWrapperCache.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/ReadableStream.h"
#include "mozilla/dom/TypedArray.h"
#include "mozilla/dom/WritableStream.h"
#include "mozilla/dom/WebTransport.h"
#include "mozilla/dom/WebTransportDatagramDuplexStreamBinding.h"
namespace mozilla::dom {
class IncomingDatagramStreamAlgorithms
: public UnderlyingSourceAlgorithmsWrapper {
public:
explicit IncomingDatagramStreamAlgorithms(
WebTransportDatagramDuplexStream* aDatagrams);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IncomingDatagramStreamAlgorithms,
UnderlyingSourceAlgorithmsWrapper)
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> PullCallbackImpl(
JSContext* aCx, ReadableStreamController& aController,
ErrorResult& aRv) override;
MOZ_CAN_RUN_SCRIPT void ReturnDatagram(JSContext* aCx, ErrorResult& aRv);
void NotifyDatagramAvailable();
protected:
~IncomingDatagramStreamAlgorithms() override;
private:
RefPtr<WebTransportDatagramDuplexStream> mDatagrams;
RefPtr<Promise> mIncomingDatagramsPullPromise;
};
class EarlyDatagram final {
public:
EarlyDatagram(DatagramEntry* aDatagram, Promise* aPromise)
: mDatagram(aDatagram), mWaitConnectPromise(aPromise) {}
UniquePtr<DatagramEntry> mDatagram;
RefPtr<Promise> mWaitConnectPromise;
~EarlyDatagram() = default;
};
class OutgoingDatagramStreamAlgorithms final
: public UnderlyingSinkAlgorithmsWrapper {
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OutgoingDatagramStreamAlgorithms,
UnderlyingSinkAlgorithmsWrapper)
explicit OutgoingDatagramStreamAlgorithms(
WebTransportDatagramDuplexStream* aDatagrams)
: mDatagrams(aDatagrams) {}
void SetChild(WebTransportChild* aChild);
// Streams algorithms
already_AddRefed<Promise> WriteCallback(
JSContext* aCx, JS::Handle<JS::Value> aChunk,
WritableStreamDefaultController& aController,
ErrorResult& aError) override;
private:
~OutgoingDatagramStreamAlgorithms() override = default;
RefPtr<WebTransportDatagramDuplexStream> mDatagrams;
RefPtr<WebTransportChild> mChild;
// only used for datagrams sent before Ready
UniquePtr<DatagramEntry> mWaitConnect;
RefPtr<Promise> mWaitConnectPromise;
};
class WebTransportDatagramDuplexStream final : public nsISupports,
public nsWrapperCache {
friend class IncomingDatagramStreamAlgorithms;
friend class OutgoingDatagramStreamAlgorithms;
public:
WebTransportDatagramDuplexStream(nsIGlobalObject* aGlobal,
WebTransport* aWebTransport);
void Init(ErrorResult& aError);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(WebTransportDatagramDuplexStream)
void SetChild(WebTransportChild* aChild) {
mOutgoingAlgorithms->SetChild(aChild);
}
void NewDatagramReceived(nsTArray<uint8_t>&& aData,
const mozilla::TimeStamp& aTimeStamp);
// WebIDL Boilerplate
nsIGlobalObject* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL Interface
already_AddRefed<ReadableStream> Readable() const {
RefPtr<ReadableStream> result(mReadable);
return result.forget();
}
already_AddRefed<WritableStream> Writable() {
RefPtr<WritableStream> result(mWritable);
return result.forget();
}
uint64_t MaxDatagramSize() const { return mOutgoingMaxDataSize; }
void SetMaxDatagramSize(const uint64_t& aMaxDatagramSize) {
mOutgoingMaxDataSize = aMaxDatagramSize;
}
double GetIncomingMaxAge(ErrorResult& aRv) const { return mIncomingMaxAge; }
void SetIncomingMaxAge(double aMaxAge, ErrorResult& aRv);
double GetOutgoingMaxAge(ErrorResult& aRv) const { return mOutgoingMaxAge; }
void SetOutgoingMaxAge(double aMaxAge, ErrorResult& aRv);
double GetIncomingHighWaterMark(ErrorResult& aRv) const {
return mIncomingHighWaterMark;
}
void SetIncomingHighWaterMark(double aWaterMark, ErrorResult& aRv);
double GetOutgoingHighWaterMark(ErrorResult& aRv) const {
return mOutgoingHighWaterMark;
}
void SetOutgoingHighWaterMark(double aWaterMark, ErrorResult& aRv);
private:
~WebTransportDatagramDuplexStream() = default;
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<WebTransport> mWebTransport;
RefPtr<ReadableStream> mReadable;
RefPtr<WritableStream> mWritable;
RefPtr<IncomingDatagramStreamAlgorithms> mIncomingAlgorithms;
RefPtr<OutgoingDatagramStreamAlgorithms> mOutgoingAlgorithms;
// https://w3c.github.io/webtransport/#webtransportdatagramduplexstream-create
double mIncomingMaxAge = INFINITY;
double mOutgoingMaxAge = INFINITY;
// These are implementation-defined
double mIncomingHighWaterMark = 1.0;
double mOutgoingHighWaterMark = 5.0;
uint64_t mOutgoingMaxDataSize = 1024; // implementation-defined integer
mozilla::Queue<UniquePtr<DatagramEntry>, 32> mIncomingDatagramsQueue;
};
} // namespace mozilla::dom
#endif
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