Thieu Le | 48e6d6d | 2011-12-06 00:40:27 +0000 | [diff] [blame^] | 1 | // Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "shill/metrics.h" |
| 6 | |
| 7 | #include <base/lazy_instance.h> |
| 8 | #include <base/logging.h> |
| 9 | #include <base/string_util.h> |
| 10 | #include <base/stringprintf.h> |
| 11 | |
| 12 | #include "shill/wifi_service.h" |
| 13 | |
| 14 | using std::string; |
| 15 | using std::tr1::shared_ptr; |
| 16 | |
| 17 | namespace shill { |
| 18 | |
| 19 | static base::LazyInstance<Metrics> g_metrics(base::LINKER_INITIALIZED); |
| 20 | |
| 21 | // static |
| 22 | const char Metrics::kMetricNetworkChannel[] = "Network.Shill.%s.Channel"; |
| 23 | const int Metrics::kMetricNetworkChannelMax = Metrics::kWiFiChannelMax; |
| 24 | const char Metrics::kMetricNetworkServiceErrors[] = |
| 25 | "Network.Shill.ServiceErrors"; |
| 26 | const int Metrics::kMetricNetworkServiceErrorsMax = Service::kFailureMax; |
| 27 | const char Metrics::kMetricTimeToConfigMilliseconds[] = |
| 28 | "Network.Shill.%s.TimeToConfig"; |
| 29 | const char Metrics::kMetricTimeToJoinMilliseconds[] = |
| 30 | "Network.Shill.%s.TimeToJoin"; |
| 31 | const char Metrics::kMetricTimeToOnlineMilliseconds[] = |
| 32 | "Network.Shill.%s.TimeToOnline"; |
| 33 | const char Metrics::kMetricTimeToPortalMilliseconds[] = |
| 34 | "Network.Shill.%s.TimeToPortal"; |
| 35 | const int Metrics::kTimerHistogramMaxMilliseconds = 45 * 1000; |
| 36 | const int Metrics::kTimerHistogramMinMilliseconds = 1; |
| 37 | const int Metrics::kTimerHistogramNumBuckets = 50; |
| 38 | |
| 39 | // static |
| 40 | const uint16 Metrics::kWiFiBandwidth5MHz = 5; |
| 41 | const uint16 Metrics::kWiFiBandwidth20MHz = 20; |
| 42 | const uint16 Metrics::kWiFiFrequency2412 = 2412; |
| 43 | const uint16 Metrics::kWiFiFrequency2472 = 2472; |
| 44 | const uint16 Metrics::kWiFiFrequency2484 = 2484; |
| 45 | const uint16 Metrics::kWiFiFrequency5170 = 5170; |
| 46 | const uint16 Metrics::kWiFiFrequency5180 = 5180; |
| 47 | const uint16 Metrics::kWiFiFrequency5230 = 5230; |
| 48 | const uint16 Metrics::kWiFiFrequency5240 = 5240; |
| 49 | const uint16 Metrics::kWiFiFrequency5320 = 5320; |
| 50 | const uint16 Metrics::kWiFiFrequency5500 = 5500; |
| 51 | const uint16 Metrics::kWiFiFrequency5700 = 5700; |
| 52 | const uint16 Metrics::kWiFiFrequency5745 = 5745; |
| 53 | const uint16 Metrics::kWiFiFrequency5825 = 5825; |
| 54 | |
| 55 | Metrics::Metrics() : library_(&metrics_library_) { |
| 56 | metrics_library_.Init(); |
| 57 | chromeos_metrics::TimerReporter::set_metrics_lib(library_); |
| 58 | } |
| 59 | |
| 60 | Metrics::~Metrics() {} |
| 61 | |
| 62 | // static |
| 63 | Metrics *Metrics::GetInstance() { |
| 64 | return g_metrics.Pointer(); |
| 65 | } |
| 66 | |
| 67 | // static |
| 68 | Metrics::WiFiChannel Metrics::WiFiFrequencyToChannel(uint16 frequency) { |
| 69 | WiFiChannel channel = kWiFiChannelUndef; |
| 70 | if (kWiFiFrequency2412 <= frequency && frequency <= kWiFiFrequency2472) { |
| 71 | if (((frequency - kWiFiFrequency2412) % kWiFiBandwidth5MHz) == 0) |
| 72 | channel = static_cast<WiFiChannel>( |
| 73 | kWiFiChannel2412 + |
| 74 | (frequency - kWiFiFrequency2412) / kWiFiBandwidth5MHz); |
| 75 | } else if (frequency == kWiFiFrequency2484) { |
| 76 | channel = kWiFiChannel2484; |
| 77 | } else if (kWiFiFrequency5170 <= frequency && |
| 78 | frequency <= kWiFiFrequency5230) { |
| 79 | if ((frequency % kWiFiBandwidth20MHz) == 0) |
| 80 | channel = static_cast<WiFiChannel>( |
| 81 | kWiFiChannel5180 + |
| 82 | (frequency - kWiFiFrequency5180) / kWiFiBandwidth20MHz); |
| 83 | if ((frequency % kWiFiBandwidth20MHz) == 10) |
| 84 | channel = static_cast<WiFiChannel>( |
| 85 | kWiFiChannel5170 + |
| 86 | (frequency - kWiFiFrequency5170) / kWiFiBandwidth20MHz); |
| 87 | } else if (kWiFiFrequency5240 <= frequency && |
| 88 | frequency <= kWiFiFrequency5320) { |
| 89 | if (((frequency - kWiFiFrequency5180) % kWiFiBandwidth20MHz) == 0) |
| 90 | channel = static_cast<WiFiChannel>( |
| 91 | kWiFiChannel5180 + |
| 92 | (frequency - kWiFiFrequency5180) / kWiFiBandwidth20MHz); |
| 93 | } else if (kWiFiFrequency5500 <= frequency && |
| 94 | frequency <= kWiFiFrequency5700) { |
| 95 | if (((frequency - kWiFiFrequency5500) % kWiFiBandwidth20MHz) == 0) |
| 96 | channel = static_cast<WiFiChannel>( |
| 97 | kWiFiChannel5500 + |
| 98 | (frequency - kWiFiFrequency5500) / kWiFiBandwidth20MHz); |
| 99 | } else if (kWiFiFrequency5745 <= frequency && |
| 100 | frequency <= kWiFiFrequency5825) { |
| 101 | if (((frequency - kWiFiFrequency5745) % kWiFiBandwidth20MHz) == 0) |
| 102 | channel = static_cast<WiFiChannel>( |
| 103 | kWiFiChannel5745 + |
| 104 | (frequency - kWiFiFrequency5745) / kWiFiBandwidth20MHz); |
| 105 | } |
| 106 | CHECK(kWiFiChannelUndef <= channel && channel < kWiFiChannelMax); |
| 107 | |
| 108 | if (channel == kWiFiChannelUndef) |
| 109 | LOG(WARNING) << "no mapping for frequency " << frequency; |
| 110 | else |
| 111 | VLOG(3) << "map " << frequency << " to " << channel; |
| 112 | |
| 113 | return channel; |
| 114 | } |
| 115 | |
| 116 | void Metrics::RegisterService(const Service *service) { |
| 117 | shared_ptr<ServiceMetrics> service_metrics(new ServiceMetrics); |
| 118 | services_metrics_[service] = service_metrics; |
| 119 | service_metrics->service = service; |
| 120 | InitializeCommonServiceMetrics(service); |
| 121 | service->InitializeCustomMetrics(); |
| 122 | } |
| 123 | |
| 124 | void Metrics::DeregisterService(const Service *service) { |
| 125 | services_metrics_.erase(service); |
| 126 | } |
| 127 | |
| 128 | void Metrics::AddServiceStateTransitionTimer( |
| 129 | const Service *service, |
| 130 | const string &histogram_name, |
| 131 | Service::ConnectState start_state, |
| 132 | Service::ConnectState stop_state) { |
| 133 | ServiceMetricsLookupMap::iterator it = services_metrics_.find(service); |
| 134 | if (it == services_metrics_.end()) { |
| 135 | VLOG(1) << "service not found"; |
| 136 | DCHECK(false); |
| 137 | return; |
| 138 | } |
| 139 | ServiceMetrics *service_metrics = it->second.get(); |
| 140 | CHECK(start_state < stop_state); |
| 141 | chromeos_metrics::TimerReporter *timer = |
| 142 | new chromeos_metrics::TimerReporter(histogram_name, |
| 143 | kTimerHistogramMinMilliseconds, |
| 144 | kTimerHistogramMaxMilliseconds, |
| 145 | kTimerHistogramNumBuckets); |
| 146 | service_metrics->timers.push_back(timer); // passes ownership. |
| 147 | service_metrics->start_on_state[start_state].push_back(timer); |
| 148 | service_metrics->stop_on_state[stop_state].push_back(timer); |
| 149 | } |
| 150 | |
| 151 | void Metrics::NotifyDefaultServiceChanged(const Service */*service*/) { |
| 152 | // TODO(thieule): Handle the case when the default service has changed. |
| 153 | // crosbug.com/24438 |
| 154 | } |
| 155 | |
| 156 | void Metrics::NotifyServiceStateChanged(const Service *service, |
| 157 | Service::ConnectState new_state) { |
| 158 | ServiceMetricsLookupMap::iterator it = services_metrics_.find(service); |
| 159 | if (it == services_metrics_.end()) { |
| 160 | VLOG(1) << "service not found"; |
| 161 | DCHECK(false); |
| 162 | return; |
| 163 | } |
| 164 | ServiceMetrics *service_metrics = it->second.get(); |
| 165 | UpdateServiceStateTransitionMetrics(service_metrics, new_state); |
| 166 | |
| 167 | if (new_state == Service::kStateFailure) |
| 168 | SendServiceFailure(service); |
| 169 | |
| 170 | if (new_state != Service::kStateReady) |
| 171 | return; |
| 172 | |
| 173 | service->SendPostReadyStateMetrics(); |
| 174 | } |
| 175 | |
| 176 | string Metrics::GetFullMetricName(const char *metric_name, |
| 177 | Technology::Identifier technology_id) { |
| 178 | string technology = Technology::NameFromIdentifier(technology_id); |
| 179 | technology[0] = base::ToUpperASCII(technology[0]); |
| 180 | return base::StringPrintf(metric_name, technology.c_str()); |
| 181 | } |
| 182 | |
| 183 | void Metrics::NotifyServiceDisconnect(const Service */*service*/, |
| 184 | bool /*manual_disconnect*/) { |
| 185 | // TODO(thieule): Handle service disconnects. |
| 186 | // crosbug.com/23253 |
| 187 | } |
| 188 | |
| 189 | void Metrics::NotifyPower() { |
| 190 | // TODO(thieule): Handle suspend and resume. |
| 191 | // crosbug.com/24440 |
| 192 | } |
| 193 | |
| 194 | bool Metrics::SendEnumToUMA(const string &name, int sample, int max) { |
| 195 | return library_->SendEnumToUMA(name, sample, max); |
| 196 | } |
| 197 | |
| 198 | void Metrics::InitializeCommonServiceMetrics(const Service *service) { |
| 199 | Technology::Identifier technology = service->technology(); |
| 200 | string histogram = GetFullMetricName(kMetricTimeToConfigMilliseconds, |
| 201 | technology); |
| 202 | AddServiceStateTransitionTimer( |
| 203 | service, |
| 204 | histogram, |
| 205 | Service::kStateConfiguring, |
| 206 | Service::kStateReady); |
| 207 | histogram = GetFullMetricName(kMetricTimeToPortalMilliseconds, technology); |
| 208 | AddServiceStateTransitionTimer( |
| 209 | service, |
| 210 | histogram, |
| 211 | Service::kStateReady, |
| 212 | Service::kStatePortal); |
| 213 | histogram = GetFullMetricName(kMetricTimeToOnlineMilliseconds, technology); |
| 214 | AddServiceStateTransitionTimer( |
| 215 | service, |
| 216 | histogram, |
| 217 | Service::kStateReady, |
| 218 | Service::kStateOnline); |
| 219 | } |
| 220 | |
| 221 | void Metrics::UpdateServiceStateTransitionMetrics( |
| 222 | ServiceMetrics *service_metrics, |
| 223 | Service::ConnectState new_state) { |
| 224 | TimerReportersList::iterator it; |
| 225 | TimerReportersList &start_timers = service_metrics->start_on_state[new_state]; |
| 226 | for (it = start_timers.begin(); it != start_timers.end(); ++it) |
| 227 | (*it)->Start(); |
| 228 | |
| 229 | TimerReportersList &stop_timers = service_metrics->stop_on_state[new_state]; |
| 230 | for (it = stop_timers.begin(); it != stop_timers.end(); ++it) { |
| 231 | (*it)->Stop(); |
| 232 | (*it)->ReportMilliseconds(); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | void Metrics::SendServiceFailure(const Service *service) { |
| 237 | library_->SendEnumToUMA(kMetricNetworkServiceErrors, |
| 238 | service->failure(), |
| 239 | kMetricNetworkServiceErrorsMax); |
| 240 | } |
| 241 | |
| 242 | void Metrics::set_library(MetricsLibraryInterface *library) { |
| 243 | chromeos_metrics::TimerReporter::set_metrics_lib(library); |
| 244 | library_ = library; |
| 245 | } |
| 246 | |
| 247 | } // namespace shill |