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1 // Copyright (c) 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_SPDY_COMPRESSOR_H_ | |
6 #define NET_QUIC_QUIC_SPDY_COMPRESSOR_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "net/base/net_export.h" | |
11 #include "net/quic/quic_protocol.h" | |
12 #include "net/spdy/spdy_framer.h" | |
13 | |
14 namespace net { | |
15 | |
16 // Handles the compression of request/response headers blocks. The | |
17 // serialized format is: | |
18 // uint32 - Priority | |
19 // uint32 - Header ID | |
20 // uint32 - Compressed header length | |
21 // ... - Compressed data | |
22 // | |
23 class NET_EXPORT_PRIVATE QuicSpdyCompressor { | |
24 public: | |
25 QuicSpdyCompressor(); | |
26 ~QuicSpdyCompressor(); | |
27 | |
28 // Returns a string comprised of [header_sequence_id, compressed_headers]. | |
29 std::string CompressHeaders(const SpdyHeaderBlock& headers); | |
30 | |
31 // Returns a string comprised of | |
32 // [priority, header_sequence_id, compressed_headers] | |
33 std::string CompressHeadersWithPriority(QuicPriority priority, | |
34 const SpdyHeaderBlock& headers); | |
35 | |
36 private: | |
37 std::string CompressHeadersInternal(QuicPriority priority, | |
38 const SpdyHeaderBlock& headers, | |
39 bool write_priority); | |
40 | |
41 SpdyFramer spdy_framer_; | |
42 QuicHeaderId header_sequence_id_; | |
43 | |
44 DISALLOW_COPY_AND_ASSIGN(QuicSpdyCompressor); | |
45 }; | |
46 | |
47 } // namespace net | |
48 | |
49 #endif // NET_QUIC_QUIC_SPDY_COMPRESSOR_H_ | |
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