| | | 1 | | #if NET5_0_OR_GREATER |
| | | 2 | | |
| | | 3 | | using System; |
| | | 4 | | using System.Collections.Concurrent; |
| | | 5 | | using System.Threading; |
| | | 6 | | using System.Threading.Tasks; |
| | | 7 | | |
| | | 8 | | namespace AmbientServices; |
| | | 9 | | |
| | | 10 | | /// <summary> |
| | | 11 | | /// A basic default implementation of <see cref="IAmbientCostTracker"/> that broadcasts every cost report to registered |
| | | 12 | | /// </summary> |
| | | 13 | | /// <remarks> |
| | | 14 | | /// <pitch>The zero-configuration, in-process cost tracker used unless overridden. Each report costs only a sink fan-ou |
| | | 15 | | /// <pledge><see cref="IAmbientCostTracker"/></pledge> |
| | | 16 | | /// <plan>Entirely stateless except for the sink set (a <see cref="ConcurrentHashSet{T}"/>, so registration is idempoten |
| | | 17 | | /// </remarks> |
| | | 18 | | [DefaultAmbientService] |
| | | 19 | | internal class BasicAmbientCostTracker : IAmbientCostTracker |
| | | 20 | | { |
| | | 21 | | private readonly ConcurrentHashSet<IAmbientCostTrackerNotificationSink> _notificationSinks = new(); |
| | | 22 | | |
| | | 23 | | public BasicAmbientCostTracker() |
| | | 24 | | { |
| | | 25 | | } |
| | | 26 | | |
| | | 27 | | /// <summary> |
| | | 28 | | /// Notifies the notification sink that charges have accrued. |
| | | 29 | | /// </summary> |
| | | 30 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 31 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 32 | | /// <param name="charge">The charge (in picodollars).</param> |
| | | 33 | | public void OnChargesAccrued(string serviceId, string customerId, long charge) |
| | | 34 | | { |
| | | 35 | | // call all the notification sinks |
| | | 36 | | foreach (IAmbientCostTrackerNotificationSink notificationSink in _notificationSinks) |
| | | 37 | | { |
| | | 38 | | notificationSink.OnChargesAccrued(serviceId, customerId, charge); |
| | | 39 | | } |
| | | 40 | | } |
| | | 41 | | /// <summary> |
| | | 42 | | /// Notifies the notification sink that an ongoing cost has changed. |
| | | 43 | | /// </summary> |
| | | 44 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 45 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 46 | | /// <param name="changePerMonth">The change in cost (in picodollars per month).</param> |
| | | 47 | | public void OnOngoingCostChanged(string serviceId, string customerId, long changePerMonth) |
| | | 48 | | { |
| | | 49 | | // call all the notification sinks |
| | | 50 | | foreach (IAmbientCostTrackerNotificationSink notificationSink in _notificationSinks) |
| | | 51 | | { |
| | | 52 | | notificationSink.OnOngoingCostChanged(serviceId, customerId, changePerMonth); |
| | | 53 | | } |
| | | 54 | | } |
| | | 55 | | /// <summary> |
| | | 56 | | /// Registers a cost tracker notification sink with this ambient service profiler. |
| | | 57 | | /// </summary> |
| | | 58 | | /// <param name="sink">An <see cref="IAmbientCostTrackerNotificationSink"/> that will receive notifications as charg |
| | | 59 | | /// <returns>true if the registration was successful, false if the specified sink was already registered.</returns> |
| | | 60 | | public bool RegisterCostTrackerNotificationSink(IAmbientCostTrackerNotificationSink sink) |
| | | 61 | | { |
| | | 62 | | return _notificationSinks.Add(sink); |
| | | 63 | | } |
| | | 64 | | /// <summary> |
| | | 65 | | /// Deregisters a cost tracker notification sink with this ambient service profiler. |
| | | 66 | | /// </summary> |
| | | 67 | | /// <param name="sink">An <see cref="IAmbientCostTrackerNotificationSink"/> that will receive notifications as charg |
| | | 68 | | /// <returns>true if the deregistration was successful, false if the specified sink was not registered.</returns> |
| | | 69 | | public bool DeregisterCostTrackerNotificationSink(IAmbientCostTrackerNotificationSink sink) |
| | | 70 | | { |
| | | 71 | | return _notificationSinks.Remove(sink); |
| | | 72 | | } |
| | | 73 | | } |
| | | 74 | | |
| | | 75 | | /// <summary> |
| | | 76 | | /// A class that tracks service profile statistics across multiple call contexts in a process or a single time window. |
| | | 77 | | /// </summary> |
| | | 78 | | /// <remarks> |
| | | 79 | | /// <pitch>The all-contexts cost accumulator: hook it to a cost tracker and it totals every charge and ongoing-cost chan |
| | | 80 | | /// <pledge><see cref="IAmbientAccruedChargesAndCostChanges"/></pledge> |
| | | 81 | | /// <pledge><see cref="IAmbientCostTrackerNotificationSink"/></pledge> |
| | | 82 | | /// <plan>Registers with the <see cref="IAmbientCostTracker"/> at construction and deregisters on disposal (or on the in |
| | | 83 | | /// </remarks> |
| | | 84 | | internal class ProcessOrSingleTimeWindowCostTracker : IAmbientAccruedChargesAndCostChanges, IAmbientCostTrackerNotificat |
| | | 85 | | { |
| | | 86 | | private readonly IAmbientCostTracker _profiler; |
| | | 87 | | private readonly ConcurrentDictionary<string, ChargeAccumulator> _chargeAccumulatorsByService = new(); |
| | | 88 | | private readonly ConcurrentDictionary<string, ChargeAccumulator> _chargeAccumulatorsByCustomer = new(); |
| | | 89 | | private readonly ConcurrentDictionary<string, CostAccumulator> _costAccumulatorsByService = new(); |
| | | 90 | | private readonly ConcurrentDictionary<string, CostAccumulator> _costAccumulatorsByCustomer = new(); |
| | | 91 | | private int _chargeCount; // interlocked |
| | | 92 | | private int _costChangeCount; // interlocked |
| | | 93 | | private long _totalCharges; // interlocked |
| | | 94 | | private long _totalCostChange; // interlocked |
| | | 95 | | private bool _disposedValue; |
| | | 96 | | |
| | | 97 | | public string ScopeName { get; } |
| | | 98 | | |
| | | 99 | | public int ChargeCount => _chargeCount; |
| | | 100 | | public long AccumulatedChargeSum => _totalCharges; |
| | | 101 | | public int CostChangeCount => _costChangeCount; |
| | | 102 | | public long AccumulatedCostChangeSum => _totalCostChange; |
| | | 103 | | |
| | | 104 | | public ProcessOrSingleTimeWindowCostTracker(IAmbientCostTracker metrics, string scopeName) |
| | | 105 | | { |
| | | 106 | | _profiler = metrics; |
| | | 107 | | ScopeName = scopeName; |
| | | 108 | | _profiler.RegisterCostTrackerNotificationSink(this); |
| | | 109 | | } |
| | | 110 | | /// <summary> |
| | | 111 | | /// Notifies the notification sink that charges have accrued. |
| | | 112 | | /// </summary> |
| | | 113 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 114 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 115 | | /// <param name="charge">The charge (in picodollars).</param> |
| | | 116 | | public void OnChargesAccrued(string serviceId, string customerId, long charge) |
| | | 117 | | { |
| | | 118 | | // track the charges per service |
| | | 119 | | ChargeAccumulator.Accrue(_chargeAccumulatorsByService, serviceId, charge); |
| | | 120 | | // track the charges per customer |
| | | 121 | | ChargeAccumulator.Accrue(_chargeAccumulatorsByCustomer, customerId, charge); |
| | | 122 | | // track the total cost |
| | | 123 | | Interlocked.Add(ref _totalCharges, charge); |
| | | 124 | | // track the number of charges |
| | | 125 | | Interlocked.Increment(ref _chargeCount); |
| | | 126 | | } |
| | | 127 | | /// <summary> |
| | | 128 | | /// Notifies the notification sink that an ongoing cost has changed. |
| | | 129 | | /// </summary> |
| | | 130 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 131 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 132 | | /// <param name="changePerMonth">The change in cost (in picodollars per month).</param> |
| | | 133 | | public void OnOngoingCostChanged(string serviceId, string customerId, long changePerMonth) |
| | | 134 | | { |
| | | 135 | | // track the cost changes per service |
| | | 136 | | CostAccumulator.ChangeCost(_costAccumulatorsByService, serviceId, changePerMonth); |
| | | 137 | | // track the cost changes per customer |
| | | 138 | | CostAccumulator.ChangeCost(_costAccumulatorsByCustomer, customerId, changePerMonth); |
| | | 139 | | // track the total cost |
| | | 140 | | Interlocked.Add(ref _totalCostChange, changePerMonth); |
| | | 141 | | // track the number of charges |
| | | 142 | | Interlocked.Increment(ref _costChangeCount); |
| | | 143 | | } |
| | | 144 | | internal void CloseTracking() |
| | | 145 | | { |
| | | 146 | | _profiler.DeregisterCostTrackerNotificationSink(this); |
| | | 147 | | _disposedValue = true; |
| | | 148 | | } |
| | | 149 | | |
| | | 150 | | protected virtual void Dispose(bool disposing) |
| | | 151 | | { |
| | | 152 | | if (!_disposedValue) |
| | | 153 | | { |
| | | 154 | | if (disposing) |
| | | 155 | | { |
| | | 156 | | // TODO: dispose managed state (managed objects) |
| | | 157 | | _profiler.DeregisterCostTrackerNotificationSink(this); |
| | | 158 | | } |
| | | 159 | | |
| | | 160 | | // TODO: free unmanaged resources (unmanaged objects) and override finalizer |
| | | 161 | | // TODO: set large fields to null |
| | | 162 | | _disposedValue = true; |
| | | 163 | | } |
| | | 164 | | } |
| | | 165 | | |
| | | 166 | | // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources |
| | | 167 | | // ~ProcessingDistributionAccumulator() |
| | | 168 | | // { |
| | | 169 | | // // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | | 170 | | // Dispose(disposing: false); |
| | | 171 | | // } |
| | | 172 | | |
| | | 173 | | /// <summary> |
| | | 174 | | /// Disposes of this instance. |
| | | 175 | | /// </summary> |
| | | 176 | | public void Dispose() |
| | | 177 | | { |
| | | 178 | | // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | | 179 | | Dispose(disposing: true); |
| | | 180 | | GC.SuppressFinalize(this); |
| | | 181 | | } |
| | | 182 | | } |
| | | 183 | | |
| | | 184 | | /// <summary> |
| | | 185 | | /// A class that fans cost notifications out to the sinks registered within one call context. |
| | | 186 | | /// </summary> |
| | | 187 | | /// <remarks> |
| | | 188 | | /// <pitch>The fan-out node for one call context's cost stream: call-context cost trackers register here rather than wit |
| | | 189 | | /// <pledge><see cref="IAmbientCostTrackerNotificationSink"/></pledge> |
| | | 190 | | /// <plan>A <see cref="ConcurrentHashSet{T}"/> of sinks with synchronous fan-out; idempotent registration.</plan> |
| | | 191 | | /// </remarks> |
| | | 192 | | internal class ScopeOnChargesAccruedDistributor : IAmbientCostTrackerNotificationSink |
| | | 193 | | { |
| | | 194 | | private readonly ConcurrentHashSet<IAmbientCostTrackerNotificationSink> _notificationSinks = new(); |
| | | 195 | | /// <summary> |
| | | 196 | | /// Notifies the notification sink that charges have accrued. |
| | | 197 | | /// </summary> |
| | | 198 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 199 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 200 | | /// <param name="charge">The charge (in picodollars).</param> |
| | | 201 | | public void OnChargesAccrued(string serviceId, string customerId, long charge) |
| | | 202 | | { |
| | | 203 | | foreach (IAmbientCostTrackerNotificationSink notificationSink in _notificationSinks) |
| | | 204 | | { |
| | | 205 | | notificationSink.OnChargesAccrued(serviceId, customerId, charge); |
| | | 206 | | } |
| | | 207 | | } |
| | | 208 | | /// <summary> |
| | | 209 | | /// Notifies the notification sink that an ongoing cost has changed. |
| | | 210 | | /// </summary> |
| | | 211 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 212 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 213 | | /// <param name="changePerMonth">The change in cost (in picodollars per month).</param> |
| | | 214 | | public void OnOngoingCostChanged(string serviceId, string customerId, long changePerMonth) |
| | | 215 | | { |
| | | 216 | | foreach (IAmbientCostTrackerNotificationSink notificationSink in _notificationSinks) |
| | | 217 | | { |
| | | 218 | | notificationSink.OnOngoingCostChanged(serviceId, customerId, changePerMonth); |
| | | 219 | | } |
| | | 220 | | } |
| | | 221 | | public bool RegisterSystemSwitchedNotificationSink(IAmbientCostTrackerNotificationSink sink) |
| | | 222 | | { |
| | | 223 | | return _notificationSinks.Add(sink); |
| | | 224 | | } |
| | | 225 | | public bool DeregisterSystemSwitchedNotificationSink(IAmbientCostTrackerNotificationSink sink) |
| | | 226 | | { |
| | | 227 | | return _notificationSinks.Remove(sink); |
| | | 228 | | } |
| | | 229 | | } |
| | | 230 | | |
| | | 231 | | /// <summary> |
| | | 232 | | /// A class that tracks service profile statistics for a specific call context. |
| | | 233 | | /// </summary> |
| | | 234 | | /// <remarks> |
| | | 235 | | /// <pitch>The per-request cost accumulator: totals the charges and ongoing-cost changes reported within one call contex |
| | | 236 | | /// <pledge><see cref="IAmbientAccruedChargesAndCostChanges"/></pledge> |
| | | 237 | | /// <pledge><see cref="IAmbientCostTrackerNotificationSink"/></pledge> |
| | | 238 | | /// <plan>Registers with its call context's <see cref="ScopeOnChargesAccruedDistributor"/> at construction and deregiste |
| | | 239 | | /// </remarks> |
| | | 240 | | internal class CallContextCostTracker : IAmbientAccruedChargesAndCostChanges, IAmbientCostTrackerNotificationSink, IDisp |
| | | 241 | | { |
| | | 242 | | private readonly ScopeOnChargesAccruedDistributor _distributor; |
| | 2 | 243 | | private readonly ConcurrentDictionary<string, ChargeAccumulator> _accumulatorsByService = new(); |
| | 2 | 244 | | private readonly ConcurrentDictionary<string, ChargeAccumulator> _accumulatorsByCustomer = new(); |
| | 2 | 245 | | private readonly ConcurrentDictionary<string, CostAccumulator> _costAccumulatorsByService = new(); |
| | 2 | 246 | | private readonly ConcurrentDictionary<string, CostAccumulator> _costAccumulatorsByCustomer = new(); |
| | | 247 | | private int _chargeCount; // interlocked |
| | | 248 | | private int _costChangeCount; // interlocked |
| | | 249 | | private long _totalCharges; // interlocked |
| | | 250 | | private long _totalCostChange; // interlocked |
| | | 251 | | private bool _disposedValue; |
| | | 252 | | |
| | | 253 | | public string ScopeName { get; } |
| | 2 | 254 | | public int ChargeCount => _chargeCount; |
| | 2 | 255 | | public long AccumulatedChargeSum => _totalCharges; |
| | 2 | 256 | | public int CostChangeCount => _costChangeCount; |
| | 2 | 257 | | public long AccumulatedCostChangeSum => _totalCostChange; |
| | | 258 | | |
| | | 259 | | /// <summary> |
| | | 260 | | /// Constructs a CallContextCostTracker. |
| | | 261 | | /// </summary> |
| | | 262 | | /// <param name="distributor">A <see cref="ScopeOnChargesAccruedDistributor"/> to hook into to receive system change |
| | | 263 | | /// <param name="scopeName">The name of the call context being tracked.</param> |
| | 2 | 264 | | public CallContextCostTracker(ScopeOnChargesAccruedDistributor distributor, string scopeName) |
| | | 265 | | { |
| | 2 | 266 | | _distributor = distributor; |
| | 2 | 267 | | ScopeName = scopeName; |
| | 2 | 268 | | distributor.RegisterSystemSwitchedNotificationSink(this); |
| | 2 | 269 | | } |
| | | 270 | | /// <summary> |
| | | 271 | | /// Notifies the notification sink that charges have accrued. |
| | | 272 | | /// </summary> |
| | | 273 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 274 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 275 | | /// <param name="charge">The charge (in picodollars).</param> |
| | | 276 | | public void OnChargesAccrued(string serviceId, string customerId, long charge) |
| | | 277 | | { |
| | | 278 | | // track the charges per service |
| | 2 | 279 | | ChargeAccumulator.Accrue(_accumulatorsByService, serviceId, charge); |
| | | 280 | | // track the charges per customer |
| | 2 | 281 | | ChargeAccumulator.Accrue(_accumulatorsByCustomer, customerId, charge); |
| | | 282 | | // track the total charges |
| | 2 | 283 | | Interlocked.Add(ref _totalCharges, charge); |
| | | 284 | | // track the number of charges |
| | 2 | 285 | | Interlocked.Increment(ref _chargeCount); |
| | 2 | 286 | | } |
| | | 287 | | /// <summary> |
| | | 288 | | /// Notifies the notification sink that an ongoing cost has changed. |
| | | 289 | | /// </summary> |
| | | 290 | | /// <param name="serviceId">An optional service identifier, with empty string indicating the system itself.</param> |
| | | 291 | | /// <param name="customerId">A string identifying the customer.</param> |
| | | 292 | | /// <param name="changePerMonth">The change in cost (in picodollars per month).</param> |
| | | 293 | | public void OnOngoingCostChanged(string serviceId, string customerId, long changePerMonth) |
| | | 294 | | { |
| | | 295 | | // track the cost change per service |
| | 2 | 296 | | CostAccumulator.ChangeCost(_costAccumulatorsByService, serviceId, changePerMonth); |
| | | 297 | | // track the cost change per customer |
| | 2 | 298 | | CostAccumulator.ChangeCost(_costAccumulatorsByCustomer, customerId, changePerMonth); |
| | | 299 | | // track the total cost change |
| | 2 | 300 | | Interlocked.Add(ref _totalCostChange, changePerMonth); |
| | | 301 | | // track the number of charges |
| | 2 | 302 | | Interlocked.Increment(ref _costChangeCount); |
| | 2 | 303 | | } |
| | | 304 | | |
| | | 305 | | protected virtual void Dispose(bool disposing) |
| | | 306 | | { |
| | 2 | 307 | | if (!_disposedValue) |
| | | 308 | | { |
| | 2 | 309 | | if (disposing) |
| | | 310 | | { |
| | | 311 | | // TODO: dispose managed state (managed objects) |
| | 2 | 312 | | _distributor.DeregisterSystemSwitchedNotificationSink(this); |
| | | 313 | | } |
| | | 314 | | |
| | | 315 | | // TODO: free unmanaged resources (unmanaged objects) and override finalizer |
| | | 316 | | // TODO: set large fields to null |
| | 2 | 317 | | _disposedValue = true; |
| | | 318 | | } |
| | 2 | 319 | | } |
| | | 320 | | |
| | | 321 | | // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources |
| | | 322 | | // ~CallContextCostTracker() |
| | | 323 | | // { |
| | | 324 | | // // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | | 325 | | // Dispose(disposing: false); |
| | | 326 | | // } |
| | | 327 | | |
| | | 328 | | /// <summary> |
| | | 329 | | /// Disposes of this instance. |
| | | 330 | | /// </summary> |
| | | 331 | | public void Dispose() |
| | | 332 | | { |
| | | 333 | | // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | 2 | 334 | | Dispose(disposing: true); |
| | 2 | 335 | | GC.SuppressFinalize(this); |
| | 2 | 336 | | } |
| | | 337 | | } |
| | | 338 | | |
| | | 339 | | /// <summary> |
| | | 340 | | /// A class that tracks service profile statistics for a moving time window. |
| | | 341 | | /// </summary> |
| | | 342 | | /// <remarks> |
| | | 343 | | /// <pitch>Periodic cost reporting: every window of the configured size yields a finished <see cref="IAmbientAccruedChar |
| | | 344 | | /// <pledge>Each report is delivered once, after its window closes; costs reported near a boundary land in whichever win |
| | | 345 | | /// <plan>An <see cref="AmbientEventTimer"/> rotates a <see cref="ProcessOrSingleTimeWindowCostTracker"/> atomically (vi |
| | | 346 | | /// </remarks> |
| | | 347 | | internal class TimeWindowCostTracker : IDisposable |
| | | 348 | | { |
| | | 349 | | private readonly string _scopeNamePrefix; |
| | | 350 | | private readonly AmbientEventTimer _timeWindowRotator; |
| | | 351 | | private ProcessOrSingleTimeWindowCostTracker? _timeWindowCallContextCollector; // interlocked |
| | | 352 | | private bool _disposedValue; |
| | | 353 | | |
| | | 354 | | /// <summary> |
| | | 355 | | /// Constructs a TimeWindowProcessingDistributionTracker. |
| | | 356 | | /// </summary> |
| | | 357 | | /// <param name="metrics">A <see cref="IAmbientCostTracker"/> to hook into to receive processor change events.</para |
| | | 358 | | /// <param name="scopeNamePrefix">A <see cref="TimeSpan"/> indicating the size of the window.</param> |
| | | 359 | | /// <param name="windowPeriod">A <see cref="TimeSpan"/> indicating how often reports are desired.</param> |
| | | 360 | | /// <param name="onWindowComplete">An async delegate that receives a <see cref="IAmbientAccruedChargesAndCostChanges |
| | | 361 | | public TimeWindowCostTracker(IAmbientCostTracker metrics, string scopeNamePrefix, TimeSpan windowPeriod, Func<IAmbie |
| | | 362 | | { |
| | | 363 | | if (onWindowComplete == null) throw new ArgumentNullException(nameof(onWindowComplete), "Time Window Collection |
| | | 364 | | _scopeNamePrefix = scopeNamePrefix; |
| | | 365 | | using (Rotate(metrics, windowPeriod)) { } |
| | | 366 | | _timeWindowRotator = new AmbientEventTimer(windowPeriod); |
| | | 367 | | _timeWindowRotator.Elapsed += |
| | | 368 | | async (sender, handler) => |
| | | 369 | | { |
| | | 370 | | using ProcessOrSingleTimeWindowCostTracker? oldAccumulator = Rotate(metrics, windowPeriod); |
| | | 371 | | if (oldAccumulator != null) |
| | | 372 | | { |
| | | 373 | | await onWindowComplete(oldAccumulator); |
| | | 374 | | } |
| | | 375 | | }; |
| | | 376 | | _timeWindowRotator.AutoReset = true; |
| | | 377 | | _timeWindowRotator.Enabled = true; |
| | | 378 | | } |
| | | 379 | | |
| | | 380 | | private ProcessOrSingleTimeWindowCostTracker? Rotate(IAmbientCostTracker metrics, TimeSpan windowPeriod) |
| | | 381 | | { |
| | | 382 | | string windowName = WindowScope.WindowId(AmbientClock.UtcNow, windowPeriod); |
| | | 383 | | string newAccumulatorScopeName = _scopeNamePrefix + windowName + "(" + WindowScope.WindowSize(windowPeriod) + ") |
| | | 384 | | ProcessOrSingleTimeWindowCostTracker newAccumulator = new(metrics, newAccumulatorScopeName); |
| | | 385 | | ProcessOrSingleTimeWindowCostTracker? oldAccumulator = Interlocked.Exchange(ref _timeWindowCallContextCollector, |
| | | 386 | | oldAccumulator?.CloseTracking(); |
| | | 387 | | return oldAccumulator; |
| | | 388 | | } |
| | | 389 | | |
| | | 390 | | protected virtual void Dispose(bool disposing) |
| | | 391 | | { |
| | | 392 | | if (!_disposedValue) |
| | | 393 | | { |
| | | 394 | | if (disposing) |
| | | 395 | | { |
| | | 396 | | // TODO: dispose managed state (managed objects) |
| | | 397 | | _timeWindowRotator.Dispose(); |
| | | 398 | | } |
| | | 399 | | |
| | | 400 | | // TODO: free unmanaged resources (unmanaged objects) and override finalizer |
| | | 401 | | // TODO: set large fields to null |
| | | 402 | | _disposedValue = true; |
| | | 403 | | } |
| | | 404 | | } |
| | | 405 | | |
| | | 406 | | // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources |
| | | 407 | | // ~ScopeProcessingDistributionTracker() |
| | | 408 | | // { |
| | | 409 | | // // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | | 410 | | // Dispose(disposing: false); |
| | | 411 | | // } |
| | | 412 | | |
| | | 413 | | /// <summary> |
| | | 414 | | /// Disposes of this instance. |
| | | 415 | | /// </summary> |
| | | 416 | | public void Dispose() |
| | | 417 | | { |
| | | 418 | | // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method |
| | | 419 | | Dispose(disposing: true); |
| | | 420 | | GC.SuppressFinalize(this); |
| | | 421 | | } |
| | | 422 | | } |
| | | 423 | | /// <summary> |
| | | 424 | | /// A class that accumulates charges for some scope. |
| | | 425 | | /// </summary> |
| | | 426 | | /// <remarks> |
| | | 427 | | /// <pitch>A tiny thread-safe accumulator pairing a charge count with a running charge total, for per-service and per-cu |
| | | 428 | | /// <pledge>Construction records the first charge; <see cref="AddCharge"/> atomically bumps the count and adds to the to |
| | | 429 | | /// </remarks> |
| | | 430 | | public class ChargeAccumulator |
| | | 431 | | { |
| | | 432 | | private long _chargeCount; // interlocked |
| | | 433 | | private long _totalCharges; // interlocked |
| | | 434 | | |
| | | 435 | | /// <summary> |
| | | 436 | | /// Constructs a charge accumulator. |
| | | 437 | | /// </summary> |
| | | 438 | | /// <param name="charge">The initial charge.</param> |
| | | 439 | | public ChargeAccumulator(long charge) |
| | | 440 | | { |
| | | 441 | | _chargeCount = 1; |
| | | 442 | | _totalCharges = charge; |
| | | 443 | | } |
| | | 444 | | |
| | | 445 | | internal static void Accrue(ConcurrentDictionary<string, ChargeAccumulator> chargeAccumulators, string key, long cha |
| | | 446 | | { |
| | | 447 | | chargeAccumulators.AddOrUpdate(key, new ChargeAccumulator(charge), (k, v) => { v.AddCharge(charge); return v; }) |
| | | 448 | | } |
| | | 449 | | |
| | | 450 | | /// <summary> |
| | | 451 | | /// Adds a charge to the accumulator. |
| | | 452 | | /// </summary> |
| | | 453 | | /// <param name="charge">The charge amount (in picodollars).</param> |
| | | 454 | | public void AddCharge(long charge) |
| | | 455 | | { |
| | | 456 | | Interlocked.Increment(ref _chargeCount); |
| | | 457 | | Interlocked.Add(ref _totalCharges, charge); |
| | | 458 | | } |
| | | 459 | | } |
| | | 460 | | /// <summary> |
| | | 461 | | /// A class that accumulates cost for some scope. |
| | | 462 | | /// </summary> |
| | | 463 | | /// <remarks> |
| | | 464 | | /// <pitch>A tiny thread-safe accumulator pairing a change count with a running total of ongoing-cost-rate changes, for |
| | | 465 | | /// <pledge>Construction records the first change; <see cref="AddCostChange"/> atomically bumps the count and adds the ( |
| | | 466 | | /// </remarks> |
| | | 467 | | public class CostAccumulator |
| | | 468 | | { |
| | | 469 | | private long _chargeCount; // interlocked |
| | | 470 | | private long _totalCostPerMonthChange; // interlocked |
| | | 471 | | |
| | | 472 | | /// <summary> |
| | | 473 | | /// Constructs a cost accumulator. |
| | | 474 | | /// </summary> |
| | | 475 | | /// <param name="costPerMonthChange">The initial change in cost.</param> |
| | | 476 | | public CostAccumulator(long costPerMonthChange) |
| | | 477 | | { |
| | | 478 | | _chargeCount = 1; |
| | | 479 | | _totalCostPerMonthChange = costPerMonthChange; |
| | | 480 | | } |
| | | 481 | | |
| | | 482 | | internal static void ChangeCost(ConcurrentDictionary<string, CostAccumulator> chargeAccumulators, string key, long c |
| | | 483 | | { |
| | | 484 | | chargeAccumulators.AddOrUpdate(key, new CostAccumulator(costPerMonthChange), (k, v) => { v.AddCostChange(costPer |
| | | 485 | | } |
| | | 486 | | |
| | | 487 | | /// <summary> |
| | | 488 | | /// Adds a cost change to the accumulator. |
| | | 489 | | /// </summary> |
| | | 490 | | /// <param name="costPerMonthChange">The cost change (in picodollars per month).</param> |
| | | 491 | | public void AddCostChange(long costPerMonthChange) |
| | | 492 | | { |
| | | 493 | | Interlocked.Increment(ref _chargeCount); |
| | | 494 | | Interlocked.Add(ref _totalCostPerMonthChange, costPerMonthChange); |
| | | 495 | | } |
| | | 496 | | } |
| | | 497 | | #endif |