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1 // Copyright 2013 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 NET_QUIC_QUIC_HEADERS_STREAM_H_ | |
6 #define NET_QUIC_QUIC_HEADERS_STREAM_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/memory/scoped_ptr.h" | |
10 #include "net/base/net_export.h" | |
11 #include "net/quic/quic_protocol.h" | |
12 #include "net/quic/reliable_quic_stream.h" | |
13 #include "net/spdy/spdy_framer.h" | |
14 | |
15 namespace net { | |
16 | |
17 // Headers in QUIC are sent as SPDY SYN_STREAM or SYN_REPLY frames | |
18 // over a reserved reliable stream with the id 2. Each endpoint (client | |
19 // and server) will allocate an instance of QuicHeadersStream to send | |
20 // and receive headers. | |
21 class NET_EXPORT_PRIVATE QuicHeadersStream : public ReliableQuicStream { | |
22 public: | |
23 explicit QuicHeadersStream(QuicSession* session); | |
24 ~QuicHeadersStream() override; | |
25 | |
26 // Writes |headers| for |stream_id| in a SYN_STREAM or SYN_REPLY | |
27 // frame to the peer. If |fin| is true, the fin flag will be set on | |
28 // the SPDY frame. Returns the size, in bytes, of the resulting | |
29 // SPDY frame. | |
30 size_t WriteHeaders( | |
31 QuicStreamId stream_id, | |
32 const SpdyHeaderBlock& headers, | |
33 bool fin, | |
34 QuicPriority priority, | |
35 QuicAckNotifier::DelegateInterface* ack_notifier_delegate); | |
36 | |
37 // ReliableQuicStream implementation | |
38 uint32 ProcessRawData(const char* data, uint32 data_len) override; | |
39 QuicPriority EffectivePriority() const override; | |
40 | |
41 void OnSuccessfulVersionNegotiation(QuicVersion version); | |
42 | |
43 private: | |
44 class SpdyFramerVisitor; | |
45 | |
46 void InitializeFramer(QuicVersion version); | |
47 | |
48 // The following methods are called by the SimpleVisitor. | |
49 | |
50 // Called when a SYN_STREAM frame has been received. | |
51 void OnSynStream(SpdyStreamId stream_id, | |
52 SpdyPriority priority, | |
53 bool fin); | |
54 | |
55 // Called when a SYN_REPLY frame been received. | |
56 void OnSynReply(SpdyStreamId stream_id, bool fin); | |
57 | |
58 // Called when a chunk of header data is available. This is called | |
59 // after OnSynStream, or OnSynReply. | |
60 // |stream_id| The stream receiving the header data. | |
61 // |header_data| A buffer containing the header data chunk received. | |
62 // |len| The length of the header data buffer. A length of zero indicates | |
63 // that the header data block has been completely sent. | |
64 void OnControlFrameHeaderData(SpdyStreamId stream_id, | |
65 const char* header_data, | |
66 size_t len); | |
67 | |
68 // Called when the size of the compressed frame payload is available. | |
69 void OnCompressedFrameSize(size_t frame_len); | |
70 | |
71 // Returns true if the session is still connected. | |
72 bool IsConnected(); | |
73 | |
74 // Data about the stream whose headers are being processed. | |
75 QuicStreamId stream_id_; | |
76 bool fin_; | |
77 size_t frame_len_; | |
78 | |
79 scoped_ptr<SpdyFramer> spdy_framer_; | |
80 scoped_ptr<SpdyFramerVisitor> spdy_framer_visitor_; | |
81 | |
82 DISALLOW_COPY_AND_ASSIGN(QuicHeadersStream); | |
83 }; | |
84 | |
85 } // namespace net | |
86 | |
87 #endif // NET_QUIC_QUIC_HEADERS_STREAM_H_ | |
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