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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_net_Http2WebTransportStream_h
#define mozilla_net_Http2WebTransportStream_h
#include <functional>
#include "mozilla/CheckedInt.h"
#include "mozilla/Queue.h"
#include "WebTransportFlowControl.h"
#include "WebTransportStreamBase.h"
namespace mozilla::net {
class Capsule;
class Http2WebTransportSessionImpl;
class StreamData final {
public:
explicit StreamData(nsTArray<uint8_t>&& aData) : mData(std::move(aData)) {
MOZ_COUNT_CTOR(StreamData);
}
MOZ_COUNTED_DTOR(StreamData)
const nsTArray<uint8_t>& GetData() const { return mData; }
private:
nsTArray<uint8_t> mData;
};
class Http2WebTransportStream final : public WebTransportStreamBase {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINPUTSTREAMCALLBACK
NS_DECL_NSIOUTPUTSTREAMCALLBACK
explicit Http2WebTransportStream(
Http2WebTransportSessionImpl* aWebTransportSession, StreamId aStreamId,
uint64_t aInitialMaxStreamData, uint64_t aInitialLocalMaxStreamData,
std::function<void(Result<RefPtr<WebTransportStreamBase>, nsresult>&&)>&&
aCallback);
explicit Http2WebTransportStream(
Http2WebTransportSessionImpl* aWebTransportSession,
uint64_t aInitialMaxStreamData, uint64_t aInitialLocalMaxStreamData,
StreamId aStreamId);
nsresult Init();
StreamId WebTransportStreamId() const override;
uint64_t GetStreamId() const override;
void SendStopSending(uint8_t aErrorCode) override;
void SendFin() override;
void Reset(uint64_t aErrorCode) override;
already_AddRefed<nsIWebTransportSendStreamStats> GetSendStreamStats()
override;
already_AddRefed<nsIWebTransportReceiveStreamStats> GetReceiveStreamStats()
override;
bool RecvDone() const override;
void SetSendOrder(Maybe<int64_t> aSendOrder) override;
SenderFlowControlBase* SenderFc() override { return &mFc; }
ReceiverFlowControlBase* ReceiverFc() override { return &mReceiverFc; }
nsresult OnCapsule(Capsule&& aCapsule);
void Close(nsresult aResult);
void WriteMaintenanceCapsules(
mozilla::Queue<UniquePtr<CapsuleEncoder>>& aOutput);
void TakeOutputCapsule(mozilla::Queue<UniquePtr<CapsuleEncoder>>& aOutput);
void OnStopSending();
void OnReset(uint64_t aSize);
void OnStreamDataSent(size_t aCount);
private:
virtual ~Http2WebTransportStream();
static nsresult ReadRequestSegment(nsIInputStream*, void*, const char*,
uint32_t, uint32_t, uint32_t*);
nsresult HandleStreamData(bool aFin, nsTArray<uint8_t>&& aData);
nsresult HandleMaxStreamData(uint64_t aLimit);
nsresult HandleStopSending(uint64_t aError);
RefPtr<Http2WebTransportSessionImpl> mWebTransportSession;
class StreamId mStreamId{0u};
nsTArray<uint8_t> mBuffer;
CheckedUint64 mTotalSent{0};
uint64_t mTotalReceived = 0;
Maybe<uint64_t> mReliableSize;
uint32_t mWriteOffset = 0;
bool mSentStopSending = false;
bool mSentReset = false;
// The queue used for passing data to the upper layer.
// When mReceiveStreamPipeOut->Write() returns NS_BASE_STREAM_WOULD_BLOCK, we
// need to store the data in this queue.
mozilla::Queue<UniquePtr<StreamData>> mOutgoingQueue;
mozilla::Queue<UniquePtr<CapsuleEncoder>> mCapsuleQueue;
UniquePtr<StreamData> mCurrentOut;
const RefPtr<nsISerialEventTarget> mOwnerThread;
SenderFlowControlStreamId mFc;
ReceiverFlowControlStreamId mReceiverFc;
Maybe<Capsule> mStopSendingCapsule;
Maybe<Capsule> mStreamResetCapsule;
};
} // namespace mozilla::net
#endif
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