blob: 7ee161d50e22efa0312f71bc671223881afd5b4e [file] [log] [blame]
// Copyright (c) 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <cstddef>
#include <optional>
#include "quiche/quic/core/quic_stream_priority.h"
#include "quiche/quic/core/quic_types.h"
namespace quic {
class QuicStream;
// Pure virtual class to get notified when particular QuicStream events
// occurred.
class QUICHE_EXPORT StreamDelegateInterface {
virtual ~StreamDelegateInterface() {}
// Called when the stream has encountered errors that it can't handle.
virtual void OnStreamError(QuicErrorCode error_code,
std::string error_details) = 0;
// Called when the stream has encountered errors that it can't handle,
// specifying the wire error code |ietf_error| explicitly.
virtual void OnStreamError(QuicErrorCode error_code,
QuicIetfTransportErrorCodes ietf_error,
std::string error_details) = 0;
// Called when the stream needs to write data at specified |level| and
// transmission |type|.
virtual QuicConsumedData WritevData(QuicStreamId id, size_t write_length,
QuicStreamOffset offset,
StreamSendingState state,
TransmissionType type,
EncryptionLevel level) = 0;
// Called to write crypto data.
virtual size_t SendCryptoData(EncryptionLevel level, size_t write_length,
QuicStreamOffset offset,
TransmissionType type) = 0;
// Called on stream creation.
virtual void RegisterStreamPriority(QuicStreamId id, bool is_static,
const QuicStreamPriority& priority) = 0;
// Called on stream destruction to clear priority.
virtual void UnregisterStreamPriority(QuicStreamId id) = 0;
// Called by the stream on SetPriority to update priority.
virtual void UpdateStreamPriority(QuicStreamId id,
const QuicStreamPriority& new_priority) = 0;
} // namespace quic