while investigating why IRCBridgeModule.Close() was having no effect, i

noticed that Scene.Close() will only call Close on non-shared region
modules. i've now added code to SceneManager.Close() to collect all
shared region module from each scene before calling Scene.Close()
on it and then, once, all Scenes are closed, go through the list of
collected shared region modules and close them as well. SceneManager.Close()
is only called when we initiate a shutdown --- i've verified that a
Scene restart does not trigger the shutdown of shared modules :-)

also, this adds a couple of bug fixes to the IRCBridgeModule (which
after all didn't take kindly to being closed) as well as a check to
InterregionModule's Close() call.

finally, this fixes the RestPlugin's XmlWriter so that it no longer
includes the "xsd=..." and "xsi=..." junk.

4 files changed, 51 insertions, 15 deletions

diff --git a/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
index 85262f5..befa89f 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Chat/IRCBridgeModule.cs
@@ -151,6 +151,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
         public void Close()
         {
             m_irc.Close();
+            m_log.Info("[IRC] closed connection to IRC server");
         }
 
         public string Name
@@ -324,9 +325,9 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
         // if IRC is enabled then just keep trying using a monitor thread
         public void IRCConnectRun()
         {
-            while (true)
+            while (m_irc.Enabled)
             {
-                if ((m_irc.Enabled) && (!m_irc.Connected))
+                if (!m_irc.Connected)
                 {
                     m_irc.Connect(m_scenes);
                 }
@@ -538,7 +539,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
             m_log.Info("[IRC]: ExtractMsg: " + input);
             Dictionary<string, string> result = null;
             //string regex = @":(?<nick>\w*)!~(?<user>\S*) PRIVMSG (?<channel>\S+) :(?<msg>.*)";
-            string regex = @":(?<nick>\w*)!(?<user>\S*) PRIVMSG (?<channel>\S+) :(?<msg>.*)";
+            string regex = @":(?<nick>[\w-]*)!(?<user>\S*) PRIVMSG (?<channel>\S+) :(?<msg>.*)";
             Regex RE = new Regex(regex, RegexOptions.Multiline);
             MatchCollection matches = RE.Matches(input);
 
@@ -566,7 +567,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
         {
             // IRC keep alive thread
             // send PING ever 15 seconds
-            while (true)
+            while (m_enabled)
             {
                 try
                 {
@@ -579,8 +580,11 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                 }
                 catch (IOException)
                 {
-                    m_log.Error("[IRC]: Disconnected from IRC server.(PingRun)");
-                    Reconnect();
+                    if (m_enabled)
+                    {
+                        m_log.Error("[IRC]: Disconnected from IRC server.(PingRun)");
+                        Reconnect();
+                    }
                 }
                 catch (Exception ex)
                 {
@@ -593,7 +597,7 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
         {
             string inputLine;
             LLVector3 pos = new LLVector3(128, 128, 20);
-            while (true)
+            while (m_enabled)
             {
                 try
                 {
@@ -637,8 +641,11 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
                 }
                 catch (IOException)
                 {
-                    m_log.Error("[IRC]: ListenerRun IOException. Disconnected from IRC server ??? (ListenerRun)");
-                    Reconnect();
+                    if (m_enabled) 
+                    {
+                        m_log.Error("[IRC]: ListenerRun IOException. Disconnected from IRC server ??? (ListenerRun)");
+                        Reconnect();
+                    }
                 }
                 catch (Exception ex)
                 {
@@ -838,13 +845,19 @@ namespace OpenSim.Region.Environment.Modules.Avatar.Chat
 
         public void Close()
         {
-            m_connected = false;
-            m_writer.WriteLine(String.Format("QUIT :{0} to {1} wormhole with {2} closing", m_nick, m_channel, m_server));
+            m_writer.WriteLine(String.Format("QUIT :{0} to {1} wormhole to {2} closing", 
+                                             m_nick, m_channel, m_server));
             m_writer.Flush();
-            listener.Abort();
-            pingSender.Abort();
+
+            m_connected = false;
+            m_enabled = false;
+
+            // listener.Abort();
+            // pingSender.Abort();
+
             m_writer.Close();
             m_reader.Close();
+
             m_tcp.Close();
         }
     }
diff --git a/OpenSim/Region/Environment/Modules/Grid/Interregion/InterregionModule.cs b/OpenSim/Region/Environment/Modules/Grid/Interregion/InterregionModule.cs
index 89ee61a..40d07de 100644
--- a/OpenSim/Region/Environment/Modules/Grid/Interregion/InterregionModule.cs
+++ b/OpenSim/Region/Environment/Modules/Grid/Interregion/InterregionModule.cs
@@ -169,7 +169,8 @@ namespace OpenSim.Region.Environment.Modules.Grid.Interregion
 
         public void Close()
         {
-            ChannelServices.UnregisterChannel(m_tcpChannel);
+            if (null != m_tcpChannel)
+                ChannelServices.UnregisterChannel(m_tcpChannel);
         }
 
         public string Name
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 2b667c9..c1e8602 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -103,7 +103,11 @@ namespace OpenSim.Region.Environment.Scenes
 
         protected BaseHttpServer m_httpListener;
 
-        protected Dictionary<string, IRegionModule> Modules = new Dictionary<string, IRegionModule>();
+        protected Dictionary<string, IRegionModule> m_modules = new Dictionary<string, IRegionModule>();
+        public Dictionary<string, IRegionModule> Modules
+        {
+            get { return m_modules; }
+        }
         protected Dictionary<Type, object> ModuleInterfaces = new Dictionary<Type, object>();
         protected Dictionary<string, object> ModuleAPIMethods = new Dictionary<string, object>();
         protected Dictionary<string, ICommander> m_moduleCommanders = new Dictionary<string, ICommander>();
diff --git a/OpenSim/Region/Environment/Scenes/SceneManager.cs b/OpenSim/Region/Environment/Scenes/SceneManager.cs
index c596f6e..dc9ac37 100644
--- a/OpenSim/Region/Environment/Scenes/SceneManager.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneManager.cs
@@ -32,6 +32,7 @@ using System.Reflection;
 using libsecondlife;
 using log4net;
 using OpenSim.Framework;
+using OpenSim.Region.Environment.Interfaces;
 
 namespace OpenSim.Region.Environment.Scenes
 {
@@ -78,10 +79,27 @@ namespace OpenSim.Region.Environment.Scenes
 
         public void Close()
         {
+            // collect known shared modules in sharedModules
+            Dictionary<string, IRegionModule> sharedModules = new Dictionary<string, IRegionModule>();
             for (int i = 0; i < m_localScenes.Count; i++)
             {
+                // extract known shared modules from scene 
+                foreach(string k in m_localScenes[i].Modules.Keys)
+                {
+                    if (m_localScenes[i].Modules[k].IsSharedModule &&
+                        !sharedModules.ContainsKey(k))
+                        sharedModules[k] = m_localScenes[i].Modules[k];
+                }
+                // close scene/region
                 m_localScenes[i].Close();
             }
+
+            // all regions/scenes are now closed, we can now safely
+            // close all shared modules
+            foreach(IRegionModule mod in sharedModules.Values)
+            {
+                mod.Close();
+            }
         }
 
         public void Close(Scene cscene)