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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 |
| (...skipping 24 matching lines...) Expand all Loading... |
| 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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