diff options
Diffstat (limited to 'src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/TraceLoggingEventSource.cs')
| -rw-r--r-- | src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/TraceLoggingEventSource.cs | 890 |
1 files changed, 0 insertions, 890 deletions
diff --git a/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/TraceLoggingEventSource.cs b/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/TraceLoggingEventSource.cs deleted file mode 100644 index 07a56751ea..0000000000 --- a/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/TraceLoggingEventSource.cs +++ /dev/null @@ -1,890 +0,0 @@ -// Licensed to the .NET Foundation under one or more agreements. -// The .NET Foundation licenses this file to you under the MIT license. -// See the LICENSE file in the project root for more information. - -// This program uses code hyperlinks available as part of the HyperAddin Visual Studio plug-in. -// It is available from http://www.codeplex.com/hyperAddin - -#if !PLATFORM_UNIX -#define FEATURE_MANAGED_ETW - -#if !ES_BUILD_STANDALONE -#define FEATURE_ACTIVITYSAMPLING -#endif -#endif // PLATFORM_UNIX - -#if ES_BUILD_STANDALONE -#define FEATURE_MANAGED_ETW_CHANNELS -// #define FEATURE_ADVANCED_MANAGED_ETW_CHANNELS -#endif - -#if ES_BUILD_STANDALONE -using Environment = Microsoft.Diagnostics.Tracing.Internal.Environment; -using EventDescriptor = Microsoft.Diagnostics.Tracing.EventDescriptor; -#endif - -using System; -using System.Runtime.InteropServices; -using System.Security; -using System.Collections.ObjectModel; - -#if !ES_BUILD_AGAINST_DOTNET_V35 -using Contract = System.Diagnostics.Contracts.Contract; -using System.Collections.Generic; -using System.Text; -#else -using Contract = Microsoft.Diagnostics.Contracts.Internal.Contract; -using System.Collections.Generic; -using System.Text; -#endif - -#if ES_BUILD_STANDALONE -namespace Microsoft.Diagnostics.Tracing -#else -namespace System.Diagnostics.Tracing -#endif -{ - public partial class EventSource - { -#if FEATURE_MANAGED_ETW - private byte[] providerMetadata; -#endif - - /// <summary> - /// Construct an EventSource with a given name for non-contract based events (e.g. those using the Write() API). - /// </summary> - /// <param name="eventSourceName"> - /// The name of the event source. Must not be null. - /// </param> - public EventSource( - string eventSourceName) - : this(eventSourceName, EventSourceSettings.EtwSelfDescribingEventFormat) - { } - - /// <summary> - /// Construct an EventSource with a given name for non-contract based events (e.g. those using the Write() API). - /// </summary> - /// <param name="eventSourceName"> - /// The name of the event source. Must not be null. - /// </param> - /// <param name="config"> - /// Configuration options for the EventSource as a whole. - /// </param> - public EventSource( - string eventSourceName, - EventSourceSettings config) - : this(eventSourceName, config, null) { } - - /// <summary> - /// Construct an EventSource with a given name for non-contract based events (e.g. those using the Write() API). - /// - /// Also specify a list of key-value pairs called traits (you must pass an even number of strings). - /// The first string is the key and the second is the value. These are not interpreted by EventSource - /// itself but may be interprated the listeners. Can be fetched with GetTrait(string). - /// </summary> - /// <param name="eventSourceName"> - /// The name of the event source. Must not be null. - /// </param> - /// <param name="config"> - /// Configuration options for the EventSource as a whole. - /// </param> - /// <param name="traits">A collection of key-value strings (must be an even number).</param> - public EventSource( - string eventSourceName, - EventSourceSettings config, - params string[] traits) - : this( - eventSourceName == null ? new Guid() : GenerateGuidFromName(eventSourceName.ToUpperInvariant()), - eventSourceName, - config, traits) - { - if (eventSourceName == null) - { - throw new ArgumentNullException(nameof(eventSourceName)); - } - Contract.EndContractBlock(); - } - - /// <summary> - /// Writes an event with no fields and default options. - /// (Native API: EventWriteTransfer) - /// </summary> - /// <param name="eventName">The name of the event. Must not be null.</param> - public unsafe void Write(string eventName) - { - if (eventName == null) - { - throw new ArgumentNullException(nameof(eventName)); - } - - Contract.EndContractBlock(); - - if (!this.IsEnabled()) - { - return; - } - - var options = new EventSourceOptions(); - this.WriteImpl(eventName, ref options, null, null, null, SimpleEventTypes<EmptyStruct>.Instance); - } - - /// <summary> - /// Writes an event with no fields. - /// (Native API: EventWriteTransfer) - /// </summary> - /// <param name="eventName">The name of the event. Must not be null.</param> - /// <param name="options"> - /// Options for the event, such as the level, keywords, and opcode. Unset - /// options will be set to default values. - /// </param> - public unsafe void Write(string eventName, EventSourceOptions options) - { - if (eventName == null) - { - throw new ArgumentNullException(nameof(eventName)); - } - - Contract.EndContractBlock(); - - if (!this.IsEnabled()) - { - return; - } - - this.WriteImpl(eventName, ref options, null, null, null, SimpleEventTypes<EmptyStruct>.Instance); - } - - /// <summary> - /// Writes an event. - /// (Native API: EventWriteTransfer) - /// </summary> - /// <typeparam name="T"> - /// The type that defines the event and its payload. This must be an - /// anonymous type or a type with an [EventData] attribute. - /// </typeparam> - /// <param name="eventName"> - /// The name for the event. If null, the event name is automatically - /// determined based on T, either from the Name property of T's EventData - /// attribute or from typeof(T).Name. - /// </param> - /// <param name="data"> - /// The object containing the event payload data. The type T must be - /// an anonymous type or a type with an [EventData] attribute. The - /// public instance properties of data will be written recursively to - /// create the fields of the event. - /// </param> - public unsafe void Write<T>( - string eventName, - T data) - { - if (!this.IsEnabled()) - { - return; - } - - var options = new EventSourceOptions(); - this.WriteImpl(eventName, ref options, data, null, null, SimpleEventTypes<T>.Instance); - } - - /// <summary> - /// Writes an event. - /// (Native API: EventWriteTransfer) - /// </summary> - /// <typeparam name="T"> - /// The type that defines the event and its payload. This must be an - /// anonymous type or a type with an [EventData] attribute. - /// </typeparam> - /// <param name="eventName"> - /// The name for the event. If null, the event name is automatically - /// determined based on T, either from the Name property of T's EventData - /// attribute or from typeof(T).Name. - /// </param> - /// <param name="options"> - /// Options for the event, such as the level, keywords, and opcode. Unset - /// options will be set to default values. - /// </param> - /// <param name="data"> - /// The object containing the event payload data. The type T must be - /// an anonymous type or a type with an [EventData] attribute. The - /// public instance properties of data will be written recursively to - /// create the fields of the event. - /// </param> - public unsafe void Write<T>( - string eventName, - EventSourceOptions options, - T data) - { - if (!this.IsEnabled()) - { - return; - } - - this.WriteImpl(eventName, ref options, data, null, null, SimpleEventTypes<T>.Instance); - } - - /// <summary> - /// Writes an event. - /// This overload is for use with extension methods that wish to efficiently - /// forward the options or data parameter without performing an extra copy. - /// (Native API: EventWriteTransfer) - /// </summary> - /// <typeparam name="T"> - /// The type that defines the event and its payload. This must be an - /// anonymous type or a type with an [EventData] attribute. - /// </typeparam> - /// <param name="eventName"> - /// The name for the event. If null, the event name is automatically - /// determined based on T, either from the Name property of T's EventData - /// attribute or from typeof(T).Name. - /// </param> - /// <param name="options"> - /// Options for the event, such as the level, keywords, and opcode. Unset - /// options will be set to default values. - /// </param> - /// <param name="data"> - /// The object containing the event payload data. The type T must be - /// an anonymous type or a type with an [EventData] attribute. The - /// public instance properties of data will be written recursively to - /// create the fields of the event. - /// </param> - public unsafe void Write<T>( - string eventName, - ref EventSourceOptions options, - ref T data) - { - if (!this.IsEnabled()) - { - return; - } - - this.WriteImpl(eventName, ref options, data, null, null, SimpleEventTypes<T>.Instance); - } - - /// <summary> - /// Writes an event. - /// This overload is meant for clients that need to manipuate the activityId - /// and related ActivityId for the event. - /// </summary> - /// <typeparam name="T"> - /// The type that defines the event and its payload. This must be an - /// anonymous type or a type with an [EventData] attribute. - /// </typeparam> - /// <param name="eventName"> - /// The name for the event. If null, the event name is automatically - /// determined based on T, either from the Name property of T's EventData - /// attribute or from typeof(T).Name. - /// </param> - /// <param name="options"> - /// Options for the event, such as the level, keywords, and opcode. Unset - /// options will be set to default values. - /// </param> - /// <param name="activityId"> - /// The GUID of the activity associated with this event. - /// </param> - /// <param name="relatedActivityId"> - /// The GUID of another activity that is related to this activity, or Guid.Empty - /// if there is no related activity. Most commonly, the Start operation of a - /// new activity specifies a parent activity as its related activity. - /// </param> - /// <param name="data"> - /// The object containing the event payload data. The type T must be - /// an anonymous type or a type with an [EventData] attribute. The - /// public instance properties of data will be written recursively to - /// create the fields of the event. - /// </param> - public unsafe void Write<T>( - string eventName, - ref EventSourceOptions options, - ref Guid activityId, - ref Guid relatedActivityId, - ref T data) - { - if (!this.IsEnabled()) - { - return; - } - - fixed (Guid* pActivity = &activityId, pRelated = &relatedActivityId) - { - this.WriteImpl( - eventName, - ref options, - data, - pActivity, - relatedActivityId == Guid.Empty ? null : pRelated, - SimpleEventTypes<T>.Instance); - } - } - - /// <summary> - /// Writes an extended event, where the values of the event are the - /// combined properties of any number of values. This method is - /// intended for use in advanced logging scenarios that support a - /// dynamic set of event context providers. - /// This method does a quick check on whether this event is enabled. - /// </summary> - /// <param name="eventName"> - /// The name for the event. If null, the name from eventTypes is used. - /// (Note that providing the event name via the name parameter is slightly - /// less efficient than using the name from eventTypes.) - /// </param> - /// <param name="options"> - /// Optional overrides for the event, such as the level, keyword, opcode, - /// activityId, and relatedActivityId. Any settings not specified by options - /// are obtained from eventTypes. - /// </param> - /// <param name="eventTypes"> - /// Information about the event and the types of the values in the event. - /// Must not be null. Note that the eventTypes object should be created once and - /// saved. It should not be recreated for each event. - /// </param> - /// <param name="activityID"> - /// A pointer to the activity ID GUID to log - /// </param> - /// <param name="childActivityID"> - /// A pointer to the child activity ID to log (can be null) </param> - /// <param name="values"> - /// The values to include in the event. Must not be null. The number and types of - /// the values must match the number and types of the fields described by the - /// eventTypes parameter. - /// </param> - private unsafe void WriteMultiMerge( - string eventName, - ref EventSourceOptions options, - TraceLoggingEventTypes eventTypes, - Guid* activityID, - Guid* childActivityID, - params object[] values) - { - if (!this.IsEnabled()) - { - return; - } - byte level = (options.valuesSet & EventSourceOptions.levelSet) != 0 - ? options.level - : eventTypes.level; - EventKeywords keywords = (options.valuesSet & EventSourceOptions.keywordsSet) != 0 - ? options.keywords - : eventTypes.keywords; - - if (this.IsEnabled((EventLevel)level, keywords)) - { - WriteMultiMergeInner(eventName, ref options, eventTypes, activityID, childActivityID, values); - } - } - - /// <summary> - /// Writes an extended event, where the values of the event are the - /// combined properties of any number of values. This method is - /// intended for use in advanced logging scenarios that support a - /// dynamic set of event context providers. - /// Attention: This API does not check whether the event is enabled or not. - /// Please use WriteMultiMerge to avoid spending CPU cycles for events that are - /// not enabled. - /// </summary> - /// <param name="eventName"> - /// The name for the event. If null, the name from eventTypes is used. - /// (Note that providing the event name via the name parameter is slightly - /// less efficient than using the name from eventTypes.) - /// </param> - /// <param name="options"> - /// Optional overrides for the event, such as the level, keyword, opcode, - /// activityId, and relatedActivityId. Any settings not specified by options - /// are obtained from eventTypes. - /// </param> - /// <param name="eventTypes"> - /// Information about the event and the types of the values in the event. - /// Must not be null. Note that the eventTypes object should be created once and - /// saved. It should not be recreated for each event. - /// </param> - /// <param name="activityID"> - /// A pointer to the activity ID GUID to log - /// </param> - /// <param name="childActivityID"> - /// A pointer to the child activity ID to log (can be null) - /// </param> - /// <param name="values"> - /// The values to include in the event. Must not be null. The number and types of - /// the values must match the number and types of the fields described by the - /// eventTypes parameter. - /// </param> - private unsafe void WriteMultiMergeInner( - string eventName, - ref EventSourceOptions options, - TraceLoggingEventTypes eventTypes, - Guid* activityID, - Guid* childActivityID, - params object[] values) - { -#if FEATURE_MANAGED_ETW - int identity = 0; - byte level = (options.valuesSet & EventSourceOptions.levelSet) != 0 - ? options.level - : eventTypes.level; - byte opcode = (options.valuesSet & EventSourceOptions.opcodeSet) != 0 - ? options.opcode - : eventTypes.opcode; - EventTags tags = (options.valuesSet & EventSourceOptions.tagsSet) != 0 - ? options.tags - : eventTypes.Tags; - EventKeywords keywords = (options.valuesSet & EventSourceOptions.keywordsSet) != 0 - ? options.keywords - : eventTypes.keywords; - - var nameInfo = eventTypes.GetNameInfo(eventName ?? eventTypes.Name, tags); - if (nameInfo == null) - { - return; - } - identity = nameInfo.identity; - EventDescriptor descriptor = new EventDescriptor(identity, level, opcode, (long)keywords); - - var pinCount = eventTypes.pinCount; - var scratch = stackalloc byte[eventTypes.scratchSize]; - var descriptors = stackalloc EventData[eventTypes.dataCount + 3]; - var pins = stackalloc GCHandle[pinCount]; - - fixed (byte* - pMetadata0 = this.providerMetadata, - pMetadata1 = nameInfo.nameMetadata, - pMetadata2 = eventTypes.typeMetadata) - { - descriptors[0].SetMetadata(pMetadata0, this.providerMetadata.Length, 2); - descriptors[1].SetMetadata(pMetadata1, nameInfo.nameMetadata.Length, 1); - descriptors[2].SetMetadata(pMetadata2, eventTypes.typeMetadata.Length, 1); - -#if (!ES_BUILD_PCL && !PROJECTN) - System.Runtime.CompilerServices.RuntimeHelpers.PrepareConstrainedRegions(); -#endif - try - { - DataCollector.ThreadInstance.Enable( - scratch, - eventTypes.scratchSize, - descriptors + 3, - eventTypes.dataCount, - pins, - pinCount); - - for (int i = 0; i < eventTypes.typeInfos.Length; i++) - { - var info = eventTypes.typeInfos[i]; - info.WriteData(TraceLoggingDataCollector.Instance, info.PropertyValueFactory(values[i])); - } - - this.WriteEventRaw( - eventName, - ref descriptor, - activityID, - childActivityID, - (int)(DataCollector.ThreadInstance.Finish() - descriptors), - (IntPtr)descriptors); - } - finally - { - this.WriteCleanup(pins, pinCount); - } - } -#endif // FEATURE_MANAGED_ETW - } - - /// <summary> - /// Writes an extended event, where the values of the event have already - /// been serialized in "data". - /// </summary> - /// <param name="eventName"> - /// The name for the event. If null, the name from eventTypes is used. - /// (Note that providing the event name via the name parameter is slightly - /// less efficient than using the name from eventTypes.) - /// </param> - /// <param name="options"> - /// Optional overrides for the event, such as the level, keyword, opcode, - /// activityId, and relatedActivityId. Any settings not specified by options - /// are obtained from eventTypes. - /// </param> - /// <param name="eventTypes"> - /// Information about the event and the types of the values in the event. - /// Must not be null. Note that the eventTypes object should be created once and - /// saved. It should not be recreated for each event. - /// </param> - /// <param name="activityID"> - /// A pointer to the activity ID GUID to log - /// </param> - /// <param name="childActivityID"> - /// A pointer to the child activity ID to log (can be null) - /// </param> - /// <param name="data"> - /// The previously serialized values to include in the event. Must not be null. - /// The number and types of the values must match the number and types of the - /// fields described by the eventTypes parameter. - /// </param> - internal unsafe void WriteMultiMerge( - string eventName, - ref EventSourceOptions options, - TraceLoggingEventTypes eventTypes, - Guid* activityID, - Guid* childActivityID, - EventData* data) - { -#if FEATURE_MANAGED_ETW - if (!this.IsEnabled()) - { - return; - } - - fixed (EventSourceOptions* pOptions = &options) - { - EventDescriptor descriptor; - var nameInfo = this.UpdateDescriptor(eventName, eventTypes, ref options, out descriptor); - if (nameInfo == null) - { - return; - } - - // We make a descriptor for each EventData, and because we morph strings to counted strings - // we may have 2 for each arg, so we allocate enough for this. - var descriptors = stackalloc EventData[eventTypes.dataCount + eventTypes.typeInfos.Length * 2 + 3]; - - fixed (byte* - pMetadata0 = this.providerMetadata, - pMetadata1 = nameInfo.nameMetadata, - pMetadata2 = eventTypes.typeMetadata) - { - descriptors[0].SetMetadata(pMetadata0, this.providerMetadata.Length, 2); - descriptors[1].SetMetadata(pMetadata1, nameInfo.nameMetadata.Length, 1); - descriptors[2].SetMetadata(pMetadata2, eventTypes.typeMetadata.Length, 1); - int numDescrs = 3; - - for (int i = 0; i < eventTypes.typeInfos.Length; i++) - { - // Until M3, we need to morph strings to a counted representation - // When TDH supports null terminated strings, we can remove this. - if (eventTypes.typeInfos[i].DataType == typeof(string)) - { - // Write out the size of the string - descriptors[numDescrs].m_Ptr = (long)&descriptors[numDescrs + 1].m_Size; - descriptors[numDescrs].m_Size = 2; - numDescrs++; - - descriptors[numDescrs].m_Ptr = data[i].m_Ptr; - descriptors[numDescrs].m_Size = data[i].m_Size - 2; // Remove the null terminator - numDescrs++; - } - else - { - descriptors[numDescrs].m_Ptr = data[i].m_Ptr; - descriptors[numDescrs].m_Size = data[i].m_Size; - - // old conventions for bool is 4 bytes, but meta-data assumes 1. - if (data[i].m_Size == 4 && eventTypes.typeInfos[i].DataType == typeof(bool)) - descriptors[numDescrs].m_Size = 1; - - numDescrs++; - } - } - - this.WriteEventRaw( - eventName, - ref descriptor, - activityID, - childActivityID, - numDescrs, - (IntPtr)descriptors); - } - } -#endif // FEATURE_MANAGED_ETW - } - - private unsafe void WriteImpl( - string eventName, - ref EventSourceOptions options, - object data, - Guid* pActivityId, - Guid* pRelatedActivityId, - TraceLoggingEventTypes eventTypes) - { - try - { - fixed (EventSourceOptions* pOptions = &options) - { - EventDescriptor descriptor; - options.Opcode = options.IsOpcodeSet ? options.Opcode : GetOpcodeWithDefault(options.Opcode, eventName); - var nameInfo = this.UpdateDescriptor(eventName, eventTypes, ref options, out descriptor); - if (nameInfo == null) - { - return; - } - -#if FEATURE_MANAGED_ETW - var pinCount = eventTypes.pinCount; - var scratch = stackalloc byte[eventTypes.scratchSize]; - var descriptors = stackalloc EventData[eventTypes.dataCount + 3]; - var pins = stackalloc GCHandle[pinCount]; - - fixed (byte* - pMetadata0 = this.providerMetadata, - pMetadata1 = nameInfo.nameMetadata, - pMetadata2 = eventTypes.typeMetadata) - { - descriptors[0].SetMetadata(pMetadata0, this.providerMetadata.Length, 2); - descriptors[1].SetMetadata(pMetadata1, nameInfo.nameMetadata.Length, 1); - descriptors[2].SetMetadata(pMetadata2, eventTypes.typeMetadata.Length, 1); -#endif // FEATURE_MANAGED_ETW - -#if (!ES_BUILD_PCL && !PROJECTN) - System.Runtime.CompilerServices.RuntimeHelpers.PrepareConstrainedRegions(); -#endif - EventOpcode opcode = (EventOpcode)descriptor.Opcode; - - Guid activityId = Guid.Empty; - Guid relatedActivityId = Guid.Empty; - if (pActivityId == null && pRelatedActivityId == null && - ((options.ActivityOptions & EventActivityOptions.Disable) == 0)) - { - if (opcode == EventOpcode.Start) - { - m_activityTracker.OnStart(m_name, eventName, 0, ref activityId, ref relatedActivityId, options.ActivityOptions); - } - else if (opcode == EventOpcode.Stop) - { - m_activityTracker.OnStop(m_name, eventName, 0, ref activityId); - } - if (activityId != Guid.Empty) - pActivityId = &activityId; - if (relatedActivityId != Guid.Empty) - pRelatedActivityId = &relatedActivityId; - } - - try - { -#if FEATURE_MANAGED_ETW - DataCollector.ThreadInstance.Enable( - scratch, - eventTypes.scratchSize, - descriptors + 3, - eventTypes.dataCount, - pins, - pinCount); - - var info = eventTypes.typeInfos[0]; - info.WriteData(TraceLoggingDataCollector.Instance, info.PropertyValueFactory(data)); - - this.WriteEventRaw( - eventName, - ref descriptor, - pActivityId, - pRelatedActivityId, - (int)(DataCollector.ThreadInstance.Finish() - descriptors), - (IntPtr)descriptors); -#endif // FEATURE_MANAGED_ETW - - // TODO enable filtering for listeners. - if (m_Dispatchers != null) - { - var eventData = (EventPayload)(eventTypes.typeInfos[0].GetData(data)); - WriteToAllListeners(eventName, ref descriptor, nameInfo.tags, pActivityId, eventData); - } - - } - catch (Exception ex) - { - if (ex is EventSourceException) - throw; - else - ThrowEventSourceException(eventName, ex); - } -#if FEATURE_MANAGED_ETW - finally - { - this.WriteCleanup(pins, pinCount); - } - } -#endif // FEATURE_MANAGED_ETW - } - } - catch (Exception ex) - { - if (ex is EventSourceException) - throw; - else - ThrowEventSourceException(eventName, ex); - } - } - - private unsafe void WriteToAllListeners(string eventName, ref EventDescriptor eventDescriptor, EventTags tags, Guid* pActivityId, EventPayload payload) - { - EventWrittenEventArgs eventCallbackArgs = new EventWrittenEventArgs(this); - eventCallbackArgs.EventName = eventName; - eventCallbackArgs.m_level = (EventLevel) eventDescriptor.Level; - eventCallbackArgs.m_keywords = (EventKeywords) eventDescriptor.Keywords; - eventCallbackArgs.m_opcode = (EventOpcode) eventDescriptor.Opcode; - eventCallbackArgs.m_tags = tags; - - // Self described events do not have an id attached. We mark it internally with -1. - eventCallbackArgs.EventId = -1; - if (pActivityId != null) - eventCallbackArgs.RelatedActivityId = *pActivityId; - - if (payload != null) - { - eventCallbackArgs.Payload = new ReadOnlyCollection<object>((IList<object>)payload.Values); - eventCallbackArgs.PayloadNames = new ReadOnlyCollection<string>((IList<string>)payload.Keys); - } - - DispatchToAllListeners(-1, pActivityId, eventCallbackArgs); - } - -#if (!ES_BUILD_PCL && !PROJECTN) - [System.Runtime.ConstrainedExecution.ReliabilityContract( - System.Runtime.ConstrainedExecution.Consistency.WillNotCorruptState, - System.Runtime.ConstrainedExecution.Cer.Success)] -#endif - [NonEvent] - private unsafe void WriteCleanup(GCHandle* pPins, int cPins) - { - DataCollector.ThreadInstance.Disable(); - - for (int i = 0; i != cPins; i++) - { - if (IntPtr.Zero != (IntPtr)pPins[i]) - { - pPins[i].Free(); - } - } - } - - private void InitializeProviderMetadata() - { -#if FEATURE_MANAGED_ETW - if (m_traits != null) - { - List<byte> traitMetaData = new List<byte>(100); - for (int i = 0; i < m_traits.Length - 1; i += 2) - { - if (m_traits[i].StartsWith("ETW_", StringComparison.Ordinal)) - { - string etwTrait = m_traits[i].Substring(4); - byte traitNum; - if (!byte.TryParse(etwTrait, out traitNum)) - { - if (etwTrait == "GROUP") - { - traitNum = 1; - } - else - { - throw new ArgumentException(Resources.GetResourceString("UnknownEtwTrait", etwTrait), "traits"); - } - } - string value = m_traits[i + 1]; - int lenPos = traitMetaData.Count; - traitMetaData.Add(0); // Emit size (to be filled in later) - traitMetaData.Add(0); - traitMetaData.Add(traitNum); // Emit Trait number - var valueLen = AddValueToMetaData(traitMetaData, value) + 3; // Emit the value bytes +3 accounts for 3 bytes we emited above. - traitMetaData[lenPos] = unchecked((byte)valueLen); // Fill in size - traitMetaData[lenPos + 1] = unchecked((byte)(valueLen >> 8)); - } - } - providerMetadata = Statics.MetadataForString(this.Name, 0, traitMetaData.Count, 0); - int startPos = providerMetadata.Length - traitMetaData.Count; - foreach (var b in traitMetaData) - providerMetadata[startPos++] = b; - } - else - providerMetadata = Statics.MetadataForString(this.Name, 0, 0, 0); -#endif //FEATURE_MANAGED_ETW - } - - private static int AddValueToMetaData(List<byte> metaData, string value) - { - if (value.Length == 0) - return 0; - - int startPos = metaData.Count; - char firstChar = value[0]; - - if (firstChar == '@') - metaData.AddRange(Encoding.UTF8.GetBytes(value.Substring(1))); - else if (firstChar == '{') - metaData.AddRange(new Guid(value).ToByteArray()); - else if (firstChar == '#') - { - for (int i = 1; i < value.Length; i++) - { - if (value[i] != ' ') // Skip spaces between bytes. - { - if (!(i + 1 < value.Length)) - { - throw new ArgumentException(Resources.GetResourceString("EvenHexDigits"), "traits"); - } - metaData.Add((byte)(HexDigit(value[i]) * 16 + HexDigit(value[i + 1]))); - i++; - } - } - } - else if ('A' <= firstChar || ' ' == firstChar) // Is it alphabetic or space (excludes digits and most punctuation). - { - metaData.AddRange(Encoding.UTF8.GetBytes(value)); - } - else - { - throw new ArgumentException(Resources.GetResourceString("IllegalValue", value), "traits"); - } - - return metaData.Count - startPos; - } - - /// <summary> - /// Returns a value 0-15 if 'c' is a hexadecimal digit. If it throws an argument exception. - /// </summary> - private static int HexDigit(char c) - { - if ('0' <= c && c <= '9') - { - return (c - '0'); - } - if ('a' <= c) - { - c = unchecked((char)(c - ('a' - 'A'))); // Convert to lower case - } - if ('A' <= c && c <= 'F') - { - return (c - 'A' + 10); - } - - throw new ArgumentException(Resources.GetResourceString("BadHexDigit", c), "traits"); - } - - private NameInfo UpdateDescriptor( - string name, - TraceLoggingEventTypes eventInfo, - ref EventSourceOptions options, - out EventDescriptor descriptor) - { - NameInfo nameInfo = null; - int identity = 0; - byte level = (options.valuesSet & EventSourceOptions.levelSet) != 0 - ? options.level - : eventInfo.level; - byte opcode = (options.valuesSet & EventSourceOptions.opcodeSet) != 0 - ? options.opcode - : eventInfo.opcode; - EventTags tags = (options.valuesSet & EventSourceOptions.tagsSet) != 0 - ? options.tags - : eventInfo.Tags; - EventKeywords keywords = (options.valuesSet & EventSourceOptions.keywordsSet) != 0 - ? options.keywords - : eventInfo.keywords; - - if (this.IsEnabled((EventLevel)level, keywords)) - { - nameInfo = eventInfo.GetNameInfo(name ?? eventInfo.Name, tags); - identity = nameInfo.identity; - } - - descriptor = new EventDescriptor(identity, level, opcode, (long)keywords); - return nameInfo; - } - } -} |