Пример #1
0
        protected override void OnEventSourceCreated(EventSource eventSource)
        {
            // There is a possible race where we can get notified of the creation of our own internal logger during
            // construction of the log manager. The LogManager constructor helps handle this by explicitly calling
            // this function once it is safe to do so.
            if (eventSource is InternalLogger && InternalLogger.Write == null)
            {
                return;
            }

            lock (this.eventSourceInfosLock)
            {
                if (!this.eventSourceInfos.ContainsKey(eventSource))
                {
                    var updatedData = new EventSourceInfo(eventSource);
                    this.eventSourceInfos[eventSource] = updatedData;
                    InternalLogger.Write.NewEventSource(eventSource.Name, eventSource.Guid);
                }
                else
                {
                    return; // we should have already done the work for this source.
                }
            }
            lock (this.loggersLock)
            {
                if (this.logConfigurations != null)
                {
                    foreach (var kvp in this.logConfigurations)
                    {
                        LogConfiguration config = kvp.Value;
                        // We need to update our loggers any time a config shows up where they had a dependency
                        // that probably wasn't resolved. This will be the case either when it was a named source
                        // or it was a GUID source on a type that can't directly subscribe to GUIDs (i.e. not an ETW
                        // trace session)
                        IEventLogger logger = null;
                        switch (config.FileType)
                        {
                        case LoggerType.Console:
                            logger = this.consoleLogger;
                            break;

                        case LoggerType.Network:
                            logger = this.GetNamedNetworkLogger(kvp.Key);
                            break;

                        default:
                            logger = this.GetNamedFileLogger(kvp.Key).Logger;
                            break;
                        }
                        LogSourceLevels levels;
                        if (config.NamedSources.TryGetValue(eventSource.Name, out levels) ||
                            (!config.HasFeature(LogConfiguration.Features.GuidSubscription) &&
                             config.GuidSources.TryGetValue(eventSource.Guid, out levels)))
                        {
                            ApplyConfigForEventSource(config, logger, eventSource, levels);
                        }
                    }
                }
            }
        }
        protected override void OnEventSourceCreated(EventSource eventSource)
        {
            // There is a possible race where we can get notified of the creation of our own internal logger during
            // construction of the log manager. The LogManager constructor helps handle this by explicitly calling
            // this function once it is safe to do so.
            if (eventSource is InternalLogger && InternalLogger.Write == null)
            {
                return;
            }

            lock (this.eventSourceInfosLock)
            {
                if (!this.eventSourceInfos.ContainsKey(eventSource))
                {
                    var updatedData = new EventSourceInfo(eventSource);
                    this.eventSourceInfos[eventSource] = updatedData;
                    InternalLogger.Write.NewEventSource(eventSource.Name, eventSource.Guid);
                }
                else
                {
                    return; // we should have already done the work for this source.
                }
            }
            lock (this.loggersLock)
            {
                foreach (var log in Configuration.Logs)
                {
                    log.UpdateForEventSource(eventSource);
                }
            }
        }
Пример #3
0
            /// <summary>
            /// Parses the <see cref="EventSource"/> class and returns the <see cref="EventSourceInfo"/> object
            /// </summary>
            /// <param name="eventSource">Event source to be parsed</param>
            /// <param name="friendlyName">Friendly name of the event source</param>
            /// <returns>event source info</returns>
            public static EventSourceInfo Parse(EventSource eventSource, string friendlyName)
            {
                if (string.IsNullOrEmpty(friendlyName))
                {
                    friendlyName = eventSource.Name;
                }

                var info = new EventSourceInfo {
                    FriendlyName = friendlyName,
                };

                foreach (var method in eventSource.GetType().GetMethods())
                {
                    var eventAttribute = method.GetCustomAttribute <EventAttribute>();
                    if (eventAttribute == null)
                    {
                        continue;
                    }

                    var id         = eventAttribute.EventId;
                    var name       = method.Name;
                    var parameters = method.GetParameters().Select(p => p.Name).ToArray();

                    info.events.Add(id, Tuple.Create(name, parameters));
                }

                return(info);
            }
Пример #4
0
        /// <summary>
        /// Adds the given event source to listening
        /// </summary>
        /// <param name="eventSourceName">Full name of the event source to be listened</param>
        /// <param name="level">Event level</param>
        /// <param name="shortName">Short and friendly name of the event source</param>
        /// <returns>True if the event source is listened successfully, false if otherwise</returns>
        public static bool AddEventSource(string eventSourceName, EventLevel level = EventLevel.Verbose, string shortName = null)
        {
            if (instance == null)
            {
                throw new InvalidOperationException();
            }

            Contract.EndContractBlock();

            var eventSource = EventSource.GetSources().FirstOrDefault(s => s.Name == eventSourceName);

            if (eventSource != null)
            {
                instance.listenedEventSources.Add(eventSource.Name, EventSourceInfo.Parse(eventSource, shortName));
                instance.EnableEvents(eventSource, level);
                Trace($"Event source {eventSourceName} enabled.");

                return(true);
            }
            else
            {
                return(false);
            }
        }
        protected override void OnEventSourceCreated(EventSource eventSource)
        {
            // There is a possible race where we can get notified of the creation of our own internal logger during
            // construction of the log manager. The LogManager constructor helps handle this by explicitly calling
            // this function once it is safe to do so.
            if (eventSource is InternalLogger && InternalLogger.Write == null)
            {
                return;
            }

            lock (this.eventSourceInfosLock)
            {
                if (!this.eventSourceInfos.ContainsKey(eventSource))
                {
                    var updatedData = new EventSourceInfo(eventSource);
                    this.eventSourceInfos[eventSource] = updatedData;
                    InternalLogger.Write.NewEventSource(eventSource.Name, eventSource.Guid);
                }
                else
                {
                    return; // we should have already done the work for this source.
                }
            }
            lock (this.loggersLock)
            {
                if (this.logConfigurations != null)
                {
                    foreach (var kvp in this.logConfigurations)
                    {
                        LogConfiguration config = kvp.Value;
                        // We need to update our loggers any time a config shows up where they had a dependency
                        // that probably wasn't resolved. This will be the case either when it was a named source
                        // or it was a GUID source on a type that can't directly subscribe to GUIDs (i.e. not an ETW
                        // trace session)
                        IEventLogger logger = null;
                        switch (config.FileType)
                        {
                        case LoggerType.Console:
                            logger = this.consoleLogger;
                            break;
                        case LoggerType.Network:
                            logger = this.GetNamedNetworkLogger(kvp.Key);
                            break;
                        default:
                            logger = this.GetNamedFileLogger(kvp.Key).Logger;
                            break;
                        }
                        LogSourceLevels levels;
                        if (config.NamedSources.TryGetValue(eventSource.Name, out levels) ||
                            (!config.HasFeature(LogConfiguration.Features.GuidSubscription) &&
                             config.GuidSources.TryGetValue(eventSource.Guid, out levels)))
                        {
                            ApplyConfigForEventSource(config, logger, eventSource, levels);
                        }
                    }
                }
            }
        }