| // 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. |
| |
| #ifndef QUICHE_QUIC_CORE_STREAM_DELEGATE_INTERFACE_H_ |
| #define QUICHE_QUIC_CORE_STREAM_DELEGATE_INTERFACE_H_ |
| |
| #include <cstddef> |
| |
| #include "absl/types/optional.h" |
| #include "quiche/quic/core/quic_types.h" |
| #include "quiche/spdy/core/spdy_protocol.h" |
| |
| namespace quic { |
| |
| class QuicStream; |
| |
| // Pure virtual class to get notified when particular QuicStream events |
| // occurred. |
| class QUIC_EXPORT_PRIVATE StreamDelegateInterface { |
| public: |
| 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 spdy::SpdyStreamPrecedence& precedence) = 0; |
| // Called on stream destruction to clear priority. |
| virtual void UnregisterStreamPriority(QuicStreamId id, bool is_static) = 0; |
| // Called by the stream on SetPriority to update priority. |
| virtual void UpdateStreamPriority( |
| QuicStreamId id, const spdy::SpdyStreamPrecedence& new_precedence) = 0; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_STREAM_DELEGATE_INTERFACE_H_ |