1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PING_PAYLOAD_DECODER_H_
6 #define QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PING_PAYLOAD_DECODER_H_
7 
8 // Decodes the payload of a PING frame; for the RFC, see:
9 //     http://httpwg.org/specs/rfc7540.html#PING
10 
11 #include "quiche/http2/decoder/decode_buffer.h"
12 #include "quiche/http2/decoder/decode_status.h"
13 #include "quiche/http2/decoder/frame_decoder_state.h"
14 #include "quiche/http2/http2_structures.h"
15 #include "quiche/common/platform/api/quiche_export.h"
16 
17 namespace http2 {
18 namespace test {
19 class PingPayloadDecoderPeer;
20 }  // namespace test
21 
22 class QUICHE_EXPORT PingPayloadDecoder {
23  public:
24   // Starts the decoding of a PING frame's payload, and completes it if the
25   // entire payload is in the provided decode buffer.
26   DecodeStatus StartDecodingPayload(FrameDecoderState* state, DecodeBuffer* db);
27 
28   // Resumes decoding a PING frame's payload that has been split across
29   // decode buffers.
30   DecodeStatus ResumeDecodingPayload(FrameDecoderState* state,
31                                      DecodeBuffer* db);
32 
33  private:
34   friend class test::PingPayloadDecoderPeer;
35 
36   DecodeStatus HandleStatus(FrameDecoderState* state, DecodeStatus status);
37 
38   Http2PingFields ping_fields_;
39 };
40 
41 }  // namespace http2
42 
43 #endif  // QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PING_PAYLOAD_DECODER_H_
44