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Side by Side Diff: net/spdy/core/hpack/hpack_encoder.h

Issue 2839373002: Implement SPDY_EXPORT and SPDY_EXPORT_PRIVATE macros. (Closed)
Patch Set: Rebase: manually resolve trivial merge conflicts. Created 3 years, 7 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_ 5 #ifndef NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_
6 #define NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_ 6 #define NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 9
10 #include <functional> 10 #include <functional>
11 #include <map> 11 #include <map>
12 #include <memory> 12 #include <memory>
13 #include <utility> 13 #include <utility>
14 #include <vector> 14 #include <vector>
15 15
16 #include "base/macros.h" 16 #include "base/macros.h"
17 #include "net/base/net_export.h"
18 #include "net/spdy/core/hpack/hpack_header_table.h" 17 #include "net/spdy/core/hpack/hpack_header_table.h"
19 #include "net/spdy/core/hpack/hpack_output_stream.h" 18 #include "net/spdy/core/hpack/hpack_output_stream.h"
20 #include "net/spdy/core/spdy_protocol.h" 19 #include "net/spdy/core/spdy_protocol.h"
20 #include "net/spdy/platform/api/spdy_export.h"
21 #include "net/spdy/platform/api/spdy_string.h" 21 #include "net/spdy/platform/api/spdy_string.h"
22 #include "net/spdy/platform/api/spdy_string_piece.h" 22 #include "net/spdy/platform/api/spdy_string_piece.h"
23 23
24 // An HpackEncoder encodes header sets as outlined in 24 // An HpackEncoder encodes header sets as outlined in
25 // http://tools.ietf.org/html/rfc7541. 25 // http://tools.ietf.org/html/rfc7541.
26 26
27 namespace net { 27 namespace net {
28 28
29 class HpackHuffmanTable; 29 class HpackHuffmanTable;
30 30
31 namespace test { 31 namespace test {
32 class HpackEncoderPeer; 32 class HpackEncoderPeer;
33 } // namespace test 33 } // namespace test
34 34
35 class NET_EXPORT_PRIVATE HpackEncoder { 35 class SPDY_EXPORT_PRIVATE HpackEncoder {
36 public: 36 public:
37 using Representation = std::pair<SpdyStringPiece, SpdyStringPiece>; 37 using Representation = std::pair<SpdyStringPiece, SpdyStringPiece>;
38 using Representations = std::vector<Representation>; 38 using Representations = std::vector<Representation>;
39 39
40 // Callers may provide a HeaderListener to be informed of header name-value 40 // Callers may provide a HeaderListener to be informed of header name-value
41 // pairs processed by this encoder. 41 // pairs processed by this encoder.
42 typedef std::function<void(SpdyStringPiece, SpdyStringPiece)> HeaderListener; 42 typedef std::function<void(SpdyStringPiece, SpdyStringPiece)> HeaderListener;
43 43
44 // An indexing policy should return true if the provided header name-value 44 // An indexing policy should return true if the provided header name-value
45 // pair should be inserted into the HPACK dynamic table. 45 // pair should be inserted into the HPACK dynamic table.
46 using IndexingPolicy = std::function<bool(SpdyStringPiece, SpdyStringPiece)>; 46 using IndexingPolicy = std::function<bool(SpdyStringPiece, SpdyStringPiece)>;
47 47
48 // |table| is an initialized HPACK Huffman table, having an 48 // |table| is an initialized HPACK Huffman table, having an
49 // externally-managed lifetime which spans beyond HpackEncoder. 49 // externally-managed lifetime which spans beyond HpackEncoder.
50 explicit HpackEncoder(const HpackHuffmanTable& table); 50 explicit HpackEncoder(const HpackHuffmanTable& table);
51 ~HpackEncoder(); 51 ~HpackEncoder();
52 52
53 // Encodes a sequence of Representations into the given string. 53 // Encodes a sequence of Representations into the given string.
54 void EncodeHeaderSet(const Representations& representations, 54 void EncodeHeaderSet(const Representations& representations,
55 SpdyString* output); 55 SpdyString* output);
56 56
57 // Encodes the given header set into the given string. Returns 57 // Encodes the given header set into the given string. Returns
58 // whether or not the encoding was successful. 58 // whether or not the encoding was successful.
59 bool EncodeHeaderSet(const SpdyHeaderBlock& header_set, SpdyString* output); 59 bool EncodeHeaderSet(const SpdyHeaderBlock& header_set, SpdyString* output);
60 60
61 class NET_EXPORT_PRIVATE ProgressiveEncoder { 61 class SPDY_EXPORT_PRIVATE ProgressiveEncoder {
62 public: 62 public:
63 virtual ~ProgressiveEncoder() {} 63 virtual ~ProgressiveEncoder() {}
64 64
65 // Returns true iff more remains to encode. 65 // Returns true iff more remains to encode.
66 virtual bool HasNext() const = 0; 66 virtual bool HasNext() const = 0;
67 67
68 // Encodes up to max_encoded_bytes of the current header block into the 68 // Encodes up to max_encoded_bytes of the current header block into the
69 // given output string. 69 // given output string.
70 virtual void Next(size_t max_encoded_bytes, SpdyString* output) = 0; 70 virtual void Next(size_t max_encoded_bytes, SpdyString* output) = 0;
71 }; 71 };
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147 IndexingPolicy should_index_; 147 IndexingPolicy should_index_;
148 bool enable_compression_; 148 bool enable_compression_;
149 bool should_emit_table_size_; 149 bool should_emit_table_size_;
150 150
151 DISALLOW_COPY_AND_ASSIGN(HpackEncoder); 151 DISALLOW_COPY_AND_ASSIGN(HpackEncoder);
152 }; 152 };
153 153
154 } // namespace net 154 } // namespace net
155 155
156 #endif // NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_ 156 #endif // NET_SPDY_CORE_HPACK_HPACK_ENCODER_H_
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