From 968cae6c17fab8aa8a15bfd8231b50873aa6e794 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Tue, 25 Oct 2011 20:49:46 +0100
Subject: Add "threads abort <thread-id>" simulator console command that allows
 us to abort a watchdog managed thread.

This is for diagnostic purposes.
---
 OpenSim/Framework/Servers/BaseOpenSimServer.cs | 25 +++++++++++++++++++++++++
 OpenSim/Framework/Watchdog.cs                  | 25 +++++++++++++++++++++++--
 2 files changed, 48 insertions(+), 2 deletions(-)

(limited to 'OpenSim/Framework')

diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index 688be3f..b242e1c 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -192,6 +192,10 @@ namespace OpenSim.Framework.Servers
                 m_console.Commands.AddCommand("base", false, "show version",
                         "show version",
                         "Show server version", HandleShow);
+
+                m_console.Commands.AddCommand("base", false, "threads abort",
+                        "threads abort <thread-id>",
+                        "Abort a managed thread.  Use \"show threads\" to find possible threads.", HandleThreadsAbort);
             }
         }
         
@@ -395,6 +399,27 @@ namespace OpenSim.Framework.Servers
                     break;
             }
         }
+
+        public virtual void HandleThreadsAbort(string module, string[] cmd)
+        {
+            if (cmd.Length != 3)
+            {
+                MainConsole.Instance.Output("Usage: threads abort <thread-id>");
+                return;
+            }
+
+            int threadId;
+            if (!int.TryParse(cmd[2], out threadId))
+            {
+                MainConsole.Instance.Output("ERROR: Thread id must be an integer");
+                return;
+            }
+
+            if (Watchdog.AbortThread(threadId))
+                MainConsole.Instance.OutputFormat("Aborted thread with id {0}", threadId);
+            else
+                MainConsole.Instance.OutputFormat("ERROR - Thread with id {0} not found in managed threads", threadId);
+        }
         
         protected void ShowInfo()
         {
diff --git a/OpenSim/Framework/Watchdog.cs b/OpenSim/Framework/Watchdog.cs
index 0f34e83..c947ea6 100644
--- a/OpenSim/Framework/Watchdog.cs
+++ b/OpenSim/Framework/Watchdog.cs
@@ -112,8 +112,10 @@ namespace OpenSim.Framework
         /// <summary>
         /// Stops watchdog tracking on the current thread
         /// </summary>
-        /// <returns>True if the thread was removed from the list of tracked
-        /// threads, otherwise false</returns>
+        /// <returns>
+        /// True if the thread was removed from the list of tracked
+        /// threads, otherwise false
+        /// </returns>
         public static bool RemoveThread()
         {
             return RemoveThread(Thread.CurrentThread.ManagedThreadId);
@@ -133,6 +135,25 @@ namespace OpenSim.Framework
                 return m_threads.Remove(threadID);
         }
 
+        public static bool AbortThread(int threadID)
+        {
+            lock (m_threads)
+            {
+                if (m_threads.ContainsKey(threadID))
+                {
+                    ThreadWatchdogInfo twi = m_threads[threadID];
+                    twi.Thread.Abort();
+                    RemoveThread(threadID);
+
+                    return true;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+        }
+
         private static void UpdateThread(int threadID)
         {
             ThreadWatchdogInfo threadInfo;
-- 
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