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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 #include <list> | 5 #include <list> |
6 #include <vector> | 6 #include <vector> |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "net/base/net_export.h" | 9 #include "net/base/net_export.h" |
10 #include "net/spdy/spdy_header_block.h" | 10 #include "net/spdy/spdy_header_block.h" |
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28 friend class test::HpackHuffmanAggregatorPeer; | 28 friend class test::HpackHuffmanAggregatorPeer; |
29 | 29 |
30 HpackHuffmanAggregator(); | 30 HpackHuffmanAggregator(); |
31 ~HpackHuffmanAggregator(); | 31 ~HpackHuffmanAggregator(); |
32 | 32 |
33 // Encodes the request and response headers of the transaction with an | 33 // Encodes the request and response headers of the transaction with an |
34 // HpackEncoder keyed on the transaction's SpdySessionKey. Literal headers | 34 // HpackEncoder keyed on the transaction's SpdySessionKey. Literal headers |
35 // emitted by that encoder are aggregated into internal character counts, | 35 // emitted by that encoder are aggregated into internal character counts, |
36 // which are periodically published to a UMA histogram. | 36 // which are periodically published to a UMA histogram. |
37 void AggregateTransactionCharacterCounts( | 37 void AggregateTransactionCharacterCounts( |
38 const HttpRequestInfo& request, | 38 const HttpRequestInfo& request, |
39 const HttpRequestHeaders& request_headers, | 39 const HttpRequestHeaders& request_headers, |
40 const ProxyServer& proxy, | 40 const ProxyServer& proxy, |
41 const HttpResponseHeaders& response_headers); | 41 const HttpResponseHeaders& response_headers); |
42 | 42 |
43 // Returns whether the aggregator is enabled for the session by a field trial. | 43 // Returns whether the aggregator is enabled for the session by a field trial. |
44 static bool UseAggregator(); | 44 static bool UseAggregator(); |
45 | 45 |
46 private: | 46 private: |
47 typedef std::pair<SpdySessionKey, HpackEncoder*> OriginEncoder; | 47 typedef std::pair<SpdySessionKey, HpackEncoder*> OriginEncoder; |
48 typedef std::list<OriginEncoder> OriginEncoders; | 48 typedef std::list<OriginEncoder> OriginEncoders; |
49 | 49 |
50 // Returns true if the request is considered cross-origin, | 50 // Returns true if the request is considered cross-origin, |
51 // and should not be aggregated. | 51 // and should not be aggregated. |
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65 std::vector<size_t> counts_; | 65 std::vector<size_t> counts_; |
66 size_t total_counts_; | 66 size_t total_counts_; |
67 | 67 |
68 OriginEncoders encoders_; | 68 OriginEncoders encoders_; |
69 size_t max_encoders_; | 69 size_t max_encoders_; |
70 | 70 |
71 DISALLOW_COPY_AND_ASSIGN(HpackHuffmanAggregator); | 71 DISALLOW_COPY_AND_ASSIGN(HpackHuffmanAggregator); |
72 }; | 72 }; |
73 | 73 |
74 } // namespace net | 74 } // namespace net |
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