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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 "net/socket/client_socket.h" | 5 #include "net/socket/stream_socket.h" |
6 | 6 |
7 #include "base/metrics/field_trial.h" | 7 #include "base/metrics/field_trial.h" |
8 #include "base/metrics/histogram.h" | 8 #include "base/metrics/histogram.h" |
9 #include "base/string_number_conversions.h" | 9 #include "base/string_number_conversions.h" |
10 #include "base/values.h" | 10 #include "base/values.h" |
11 | 11 |
12 namespace net { | 12 namespace net { |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
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40 Value* NetLogBytesTransferredParameter::ToValue() const { | 40 Value* NetLogBytesTransferredParameter::ToValue() const { |
41 DictionaryValue* dict = new DictionaryValue(); | 41 DictionaryValue* dict = new DictionaryValue(); |
42 dict->SetInteger("byte_count", byte_count_); | 42 dict->SetInteger("byte_count", byte_count_); |
43 if (has_bytes_) | 43 if (has_bytes_) |
44 dict->SetString("hex_encoded_bytes", hex_encoded_bytes_); | 44 dict->SetString("hex_encoded_bytes", hex_encoded_bytes_); |
45 return dict; | 45 return dict; |
46 } | 46 } |
47 | 47 |
48 } // namespace | 48 } // namespace |
49 | 49 |
50 ClientSocket::UseHistory::UseHistory() | 50 StreamSocket::UseHistory::UseHistory() |
51 : was_ever_connected_(false), | 51 : was_ever_connected_(false), |
52 was_used_to_convey_data_(false), | 52 was_used_to_convey_data_(false), |
53 omnibox_speculation_(false), | 53 omnibox_speculation_(false), |
54 subresource_speculation_(false) { | 54 subresource_speculation_(false) { |
55 } | 55 } |
56 | 56 |
57 ClientSocket::UseHistory::~UseHistory() { | 57 StreamSocket::UseHistory::~UseHistory() { |
58 EmitPreconnectionHistograms(); | 58 EmitPreconnectionHistograms(); |
59 } | 59 } |
60 | 60 |
61 void ClientSocket::UseHistory::Reset() { | 61 void StreamSocket::UseHistory::Reset() { |
62 EmitPreconnectionHistograms(); | 62 EmitPreconnectionHistograms(); |
63 was_ever_connected_ = false; | 63 was_ever_connected_ = false; |
64 was_used_to_convey_data_ = false; | 64 was_used_to_convey_data_ = false; |
65 // omnibox_speculation_ and subresource_speculation_ values | 65 // omnibox_speculation_ and subresource_speculation_ values |
66 // are intentionally preserved. | 66 // are intentionally preserved. |
67 } | 67 } |
68 | 68 |
69 void ClientSocket::UseHistory::set_was_ever_connected() { | 69 void StreamSocket::UseHistory::set_was_ever_connected() { |
70 DCHECK(!was_used_to_convey_data_); | 70 DCHECK(!was_used_to_convey_data_); |
71 was_ever_connected_ = true; | 71 was_ever_connected_ = true; |
72 } | 72 } |
73 | 73 |
74 void ClientSocket::UseHistory::set_was_used_to_convey_data() { | 74 void StreamSocket::UseHistory::set_was_used_to_convey_data() { |
75 DCHECK(was_ever_connected_); | 75 DCHECK(was_ever_connected_); |
76 was_used_to_convey_data_ = true; | 76 was_used_to_convey_data_ = true; |
77 } | 77 } |
78 | 78 |
79 | 79 |
80 void ClientSocket::UseHistory::set_subresource_speculation() { | 80 void StreamSocket::UseHistory::set_subresource_speculation() { |
81 DCHECK(was_ever_connected_); | 81 DCHECK(was_ever_connected_); |
82 // TODO(jar): We should transition to marking a socket (or stream) at | 82 // TODO(jar): We should transition to marking a socket (or stream) at |
83 // construction time as being created for speculative reasons. This current | 83 // construction time as being created for speculative reasons. This current |
84 // approach of trying to track use of a socket to convey data can make | 84 // approach of trying to track use of a socket to convey data can make |
85 // mistakes when other sockets (such as ones sitting in the pool for a long | 85 // mistakes when other sockets (such as ones sitting in the pool for a long |
86 // time) are issued. Unused sockets can be left over when a when a set of | 86 // time) are issued. Unused sockets can be left over when a when a set of |
87 // connections to a host are made, and one is "unlucky" and takes so long to | 87 // connections to a host are made, and one is "unlucky" and takes so long to |
88 // complete a connection, that another socket is used, and recycled before a | 88 // complete a connection, that another socket is used, and recycled before a |
89 // second connection comes available. Similarly, re-try connections can leave | 89 // second connection comes available. Similarly, re-try connections can leave |
90 // an original (slow to connect socket) in the pool, and that can be issued | 90 // an original (slow to connect socket) in the pool, and that can be issued |
91 // to a speculative requester. In any cases such old sockets will fail when an | 91 // to a speculative requester. In any cases such old sockets will fail when an |
92 // attempt is made to used them!... and then it will look like a speculative | 92 // attempt is made to used them!... and then it will look like a speculative |
93 // socket was discarded without any user!?!?! | 93 // socket was discarded without any user!?!?! |
94 if (was_used_to_convey_data_) | 94 if (was_used_to_convey_data_) |
95 return; | 95 return; |
96 subresource_speculation_ = true; | 96 subresource_speculation_ = true; |
97 } | 97 } |
98 | 98 |
99 void ClientSocket::UseHistory::set_omnibox_speculation() { | 99 void StreamSocket::UseHistory::set_omnibox_speculation() { |
100 DCHECK(was_ever_connected_); | 100 DCHECK(was_ever_connected_); |
101 if (was_used_to_convey_data_) | 101 if (was_used_to_convey_data_) |
102 return; | 102 return; |
103 omnibox_speculation_ = true; | 103 omnibox_speculation_ = true; |
104 } | 104 } |
105 | 105 |
106 bool ClientSocket::UseHistory::was_used_to_convey_data() const { | 106 bool StreamSocket::UseHistory::was_used_to_convey_data() const { |
107 DCHECK(!was_used_to_convey_data_ || was_ever_connected_); | 107 DCHECK(!was_used_to_convey_data_ || was_ever_connected_); |
108 return was_used_to_convey_data_; | 108 return was_used_to_convey_data_; |
109 } | 109 } |
110 | 110 |
111 void ClientSocket::UseHistory::EmitPreconnectionHistograms() const { | 111 void StreamSocket::UseHistory::EmitPreconnectionHistograms() const { |
112 DCHECK(!subresource_speculation_ || !omnibox_speculation_); | 112 DCHECK(!subresource_speculation_ || !omnibox_speculation_); |
113 // 0 ==> non-speculative, never connected. | 113 // 0 ==> non-speculative, never connected. |
114 // 1 ==> non-speculative never used (but connected). | 114 // 1 ==> non-speculative never used (but connected). |
115 // 2 ==> non-speculative and used. | 115 // 2 ==> non-speculative and used. |
116 // 3 ==> omnibox_speculative never connected. | 116 // 3 ==> omnibox_speculative never connected. |
117 // 4 ==> omnibox_speculative never used (but connected). | 117 // 4 ==> omnibox_speculative never used (but connected). |
118 // 5 ==> omnibox_speculative and used. | 118 // 5 ==> omnibox_speculative and used. |
119 // 6 ==> subresource_speculative never connected. | 119 // 6 ==> subresource_speculative never connected. |
120 // 7 ==> subresource_speculative never used (but connected). | 120 // 7 ==> subresource_speculative never used (but connected). |
121 // 8 ==> subresource_speculative and used. | 121 // 8 ==> subresource_speculative and used. |
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137 base::FieldTrialList::Find("ConnnectBackupJobs") && | 137 base::FieldTrialList::Find("ConnnectBackupJobs") && |
138 !base::FieldTrialList::Find("ConnnectBackupJobs")->group_name().empty(); | 138 !base::FieldTrialList::Find("ConnnectBackupJobs")->group_name().empty(); |
139 if (connect_backup_jobs_fieldtrial) { | 139 if (connect_backup_jobs_fieldtrial) { |
140 UMA_HISTOGRAM_ENUMERATION( | 140 UMA_HISTOGRAM_ENUMERATION( |
141 base::FieldTrial::MakeName("Net.PreconnectUtilization2", | 141 base::FieldTrial::MakeName("Net.PreconnectUtilization2", |
142 "ConnnectBackupJobs"), | 142 "ConnnectBackupJobs"), |
143 result, 9); | 143 result, 9); |
144 } | 144 } |
145 } | 145 } |
146 | 146 |
147 void ClientSocket::LogByteTransfer(const BoundNetLog& net_log, | 147 void StreamSocket::LogByteTransfer(const BoundNetLog& net_log, |
148 NetLog::EventType event_type, | 148 NetLog::EventType event_type, |
149 int byte_count, | 149 int byte_count, |
150 char* bytes) const { | 150 char* bytes) const { |
151 scoped_refptr<NetLog::EventParameters> params; | 151 scoped_refptr<NetLog::EventParameters> params; |
152 if (net_log.IsLoggingBytes()) { | 152 if (net_log.IsLoggingBytes()) { |
153 params = new NetLogBytesTransferredParameter(byte_count, bytes); | 153 params = new NetLogBytesTransferredParameter(byte_count, bytes); |
154 } else { | 154 } else { |
155 params = new NetLogBytesTransferredParameter(byte_count, NULL); | 155 params = new NetLogBytesTransferredParameter(byte_count, NULL); |
156 } | 156 } |
157 net_log.AddEvent(event_type, params); | 157 net_log.AddEvent(event_type, params); |
158 } | 158 } |
159 | 159 |
160 } // namespace net | 160 } // namespace net |
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