| // Copyright 2016 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_HTTP2_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_ |
| #define QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_ |
| |
| // Decodes the payload of a SETTINGS frame; for the RFC, see: |
| // http://httpwg.org/specs/rfc7540.html#SETTINGS |
| |
| #include "quiche/http2/decoder/decode_buffer.h" |
| #include "quiche/http2/decoder/decode_status.h" |
| #include "quiche/http2/decoder/frame_decoder_state.h" |
| #include "quiche/http2/http2_structures.h" |
| #include "quiche/common/platform/api/quiche_export.h" |
| |
| namespace http2 { |
| namespace test { |
| class SettingsPayloadDecoderPeer; |
| } // namespace test |
| |
| class QUICHE_EXPORT SettingsPayloadDecoder { |
| public: |
| // Starts the decoding of a SETTINGS frame's payload, and completes it if |
| // the entire payload is in the provided decode buffer. |
| DecodeStatus StartDecodingPayload(FrameDecoderState* state, DecodeBuffer* db); |
| |
| // Resumes decoding a SETTINGS frame that has been split across decode |
| // buffers. |
| DecodeStatus ResumeDecodingPayload(FrameDecoderState* state, |
| DecodeBuffer* db); |
| |
| private: |
| friend class test::SettingsPayloadDecoderPeer; |
| |
| // Decodes as many settings as are available in the decode buffer, starting at |
| // the first byte of one setting; if a single setting is split across buffers, |
| // ResumeDecodingPayload will handle starting from where the previous call |
| // left off, and then will call StartDecodingSettings. |
| DecodeStatus StartDecodingSettings(FrameDecoderState* state, |
| DecodeBuffer* db); |
| |
| // Decoding a single SETTING returned a status other than kDecodeDone; this |
| // method just brings together the QUICHE_DCHECKs to reduce duplication. |
| DecodeStatus HandleNotDone(FrameDecoderState* state, DecodeBuffer* db, |
| DecodeStatus status); |
| |
| Http2SettingFields setting_fields_; |
| }; |
| |
| } // namespace http2 |
| |
| #endif // QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_ |