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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/client_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" |
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59 } | 59 } |
60 | 60 |
61 void ClientSocket::UseHistory::Reset() { | 61 void ClientSocket::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::EmitPreconnectionHistograms() const { | |
70 DCHECK(!subresource_speculation_ || !omnibox_speculation_); | |
71 // 0 ==> non-speculative, never connected. | |
72 // 1 ==> non-speculative never used (but connected). | |
73 // 2 ==> non-speculative and used. | |
74 // 3 ==> omnibox_speculative never connected. | |
75 // 4 ==> omnibox_speculative never used (but connected). | |
76 // 5 ==> omnibox_speculative and used. | |
77 // 6 ==> subresource_speculative never connected. | |
78 // 7 ==> subresource_speculative never used (but connected). | |
79 // 8 ==> subresource_speculative and used. | |
80 int result; | |
81 if (was_used_to_convey_data_) | |
82 result = 2; | |
83 else if (was_ever_connected_) | |
84 result = 1; | |
85 else | |
86 result = 0; // Never used, and not really connected. | |
87 | |
88 if (omnibox_speculation_) | |
89 result += 3; | |
90 else if (subresource_speculation_) | |
91 result += 6; | |
92 UMA_HISTOGRAM_ENUMERATION("Net.PreconnectUtilization2", result, 9); | |
93 | |
94 static const bool connect_backup_jobs_fieldtrial = | |
95 base::FieldTrialList::Find("ConnnectBackupJobs") && | |
96 !base::FieldTrialList::Find("ConnnectBackupJobs")->group_name().empty(); | |
97 if (connect_backup_jobs_fieldtrial) { | |
98 UMA_HISTOGRAM_ENUMERATION( | |
99 base::FieldTrial::MakeName("Net.PreconnectUtilization2", | |
100 "ConnnectBackupJobs"), | |
101 result, 9); | |
102 } | |
103 } | |
104 | |
105 void ClientSocket::UseHistory::set_was_ever_connected() { | 69 void ClientSocket::UseHistory::set_was_ever_connected() { |
106 DCHECK(!was_used_to_convey_data_); | 70 DCHECK(!was_used_to_convey_data_); |
107 was_ever_connected_ = true; | 71 was_ever_connected_ = true; |
108 } | 72 } |
109 | 73 |
110 void ClientSocket::UseHistory::set_was_used_to_convey_data() { | 74 void ClientSocket::UseHistory::set_was_used_to_convey_data() { |
111 DCHECK(was_ever_connected_); | 75 DCHECK(was_ever_connected_); |
112 was_used_to_convey_data_ = true; | 76 was_used_to_convey_data_ = true; |
113 } | 77 } |
114 | 78 |
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137 if (was_used_to_convey_data_) | 101 if (was_used_to_convey_data_) |
138 return; | 102 return; |
139 omnibox_speculation_ = true; | 103 omnibox_speculation_ = true; |
140 } | 104 } |
141 | 105 |
142 bool ClientSocket::UseHistory::was_used_to_convey_data() const { | 106 bool ClientSocket::UseHistory::was_used_to_convey_data() const { |
143 DCHECK(!was_used_to_convey_data_ || was_ever_connected_); | 107 DCHECK(!was_used_to_convey_data_ || was_ever_connected_); |
144 return was_used_to_convey_data_; | 108 return was_used_to_convey_data_; |
145 } | 109 } |
146 | 110 |
| 111 void ClientSocket::UseHistory::EmitPreconnectionHistograms() const { |
| 112 DCHECK(!subresource_speculation_ || !omnibox_speculation_); |
| 113 // 0 ==> non-speculative, never connected. |
| 114 // 1 ==> non-speculative never used (but connected). |
| 115 // 2 ==> non-speculative and used. |
| 116 // 3 ==> omnibox_speculative never connected. |
| 117 // 4 ==> omnibox_speculative never used (but connected). |
| 118 // 5 ==> omnibox_speculative and used. |
| 119 // 6 ==> subresource_speculative never connected. |
| 120 // 7 ==> subresource_speculative never used (but connected). |
| 121 // 8 ==> subresource_speculative and used. |
| 122 int result; |
| 123 if (was_used_to_convey_data_) |
| 124 result = 2; |
| 125 else if (was_ever_connected_) |
| 126 result = 1; |
| 127 else |
| 128 result = 0; // Never used, and not really connected. |
| 129 |
| 130 if (omnibox_speculation_) |
| 131 result += 3; |
| 132 else if (subresource_speculation_) |
| 133 result += 6; |
| 134 UMA_HISTOGRAM_ENUMERATION("Net.PreconnectUtilization2", result, 9); |
| 135 |
| 136 static const bool connect_backup_jobs_fieldtrial = |
| 137 base::FieldTrialList::Find("ConnnectBackupJobs") && |
| 138 !base::FieldTrialList::Find("ConnnectBackupJobs")->group_name().empty(); |
| 139 if (connect_backup_jobs_fieldtrial) { |
| 140 UMA_HISTOGRAM_ENUMERATION( |
| 141 base::FieldTrial::MakeName("Net.PreconnectUtilization2", |
| 142 "ConnnectBackupJobs"), |
| 143 result, 9); |
| 144 } |
| 145 } |
| 146 |
147 void ClientSocket::LogByteTransfer(const BoundNetLog& net_log, | 147 void ClientSocket::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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