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TorWebClient/TorClient/Streams/Enumerators/StreamPurpose.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.ComponentModel;
+
+namespace Tor
+{
+    /// <summary>
+    /// An enumerator containing the different purposes for a stream, which is provided when extended events are enabled.
+    /// </summary>
+    public enum StreamPurpose
+    {
+        /// <summary>
+        /// A purpose was not provided.
+        /// </summary>
+        [Description(null)]
+        None,
+
+        /// <summary>
+        /// The stream was generated internally for fetching directory information.
+        /// </summary>
+        [Description("DIR_FETCH")]
+        DirectoryFetch,
+
+        /// <summary>
+        /// The stream was generated internally for uploading information to a directory authority.
+        /// </summary>
+        [Description("DIR_READ")]
+        DirectoryRead,
+
+        /// <summary>
+        /// The stream is a user-initiated DNS request.
+        /// </summary>
+        [Description("DNS_REQUEST")]
+        DNSRequest,
+
+        /// <summary>
+        /// The stream is used explicitly for testing whether our hosted directory port is accessible.
+        /// </summary>
+        [Description("DIRPORT_TEST")]
+        DirectoryPortTest,
+
+        /// <summary>
+        /// The stream is likely handling a user request. This could also be an internal stream, and none of the other
+        /// purposes match the real purpose of the stream.
+        /// </summary>
+        [Description("USER")]
+        User,
+    }
+}