Close streams immediately when we finish using them

8 files changed, 44 insertions, 59 deletions

diff --git a/OpenSim/Region/CoreModules/Agent/TextureSender/J2KDecoderModule.cs b/OpenSim/Region/CoreModules/Agent/TextureSender/J2KDecoderModule.cs
index 732781a..5cdcab9 100644
--- a/OpenSim/Region/CoreModules/Agent/TextureSender/J2KDecoderModule.cs
+++ b/OpenSim/Region/CoreModules/Agent/TextureSender/J2KDecoderModule.cs
@@ -231,7 +231,11 @@ namespace OpenSim.Region.CoreModules.Agent.TextureSender
                 {
                     try
                     {
-                        List<int> layerStarts = CSJ2K.J2kImage.GetLayerBoundaries(new MemoryStream(j2kData));
+                        List<int> layerStarts;
+                        using (MemoryStream ms = new MemoryStream(j2kData))
+                        {
+                            layerStarts = CSJ2K.J2kImage.GetLayerBoundaries(ms);
+                        }
 
                         if (layerStarts != null && layerStarts.Count > 0)
                         {
diff --git a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsRequestHandler.cs b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsRequestHandler.cs
index ff87ece..13512a2 100644
--- a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsRequestHandler.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsRequestHandler.cs
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) Contributors, http://opensimulator.org/
  * See CONTRIBUTORS.TXT for a full list of copyright holders.
  *
@@ -289,18 +289,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
 
             rootElement.AppendChild(result);
 
-            return DocToBytes(doc);
-        }
-
-        private byte[] DocToBytes(XmlDocument doc)
-        {
-            MemoryStream ms = new MemoryStream();
-            XmlTextWriter xw = new XmlTextWriter(ms, null);
-            xw.Formatting = Formatting.Indented;
-            doc.WriteTo(xw);
-            xw.Flush();
-
-            return ms.ToArray();
+            return Util.DocToBytes(doc);
         }
 
         #endregion
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
index e9c6fb6..c8056d4 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
@@ -918,17 +918,18 @@ namespace OpenSim.Region.CoreModules.World.Archiver
         {
             ITerrainModule terrainModule = scene.RequestModuleInterface<ITerrainModule>();
 
-            MemoryStream ms = new MemoryStream(data);
-            if (m_displacement != Vector3.Zero || m_rotation != 0f)
+            using (MemoryStream ms = new MemoryStream(data))
             {
-                Vector2 rotationCenter = new Vector2(m_rotationCenter.X, m_rotationCenter.Y);
-                terrainModule.LoadFromStream(terrainPath, m_displacement, m_rotation, rotationCenter, ms);
-            }
-            else
-            {
-                terrainModule.LoadFromStream(terrainPath, ms);
+                if (m_displacement != Vector3.Zero || m_rotation != 0f)
+                {
+                    Vector2 rotationCenter = new Vector2(m_rotationCenter.X, m_rotationCenter.Y);
+                    terrainModule.LoadFromStream(terrainPath, m_displacement, m_rotation, rotationCenter, ms);
+                }
+                else
+                {
+                    terrainModule.LoadFromStream(terrainPath, ms);
+                }
             }
-            ms.Close();
 
             m_log.DebugFormat("[ARCHIVER]: Restored terrain {0}", terrainPath);
 
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs
index 136a16e..448147a 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveWriteRequest.cs
@@ -569,10 +569,11 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             string terrainPath = String.Format("{0}{1}{2}.r32",
                 regionDir, ArchiveConstants.TERRAINS_PATH, scene.RegionInfo.RegionName);
 
-            MemoryStream ms = new MemoryStream();
-            scene.RequestModuleInterface<ITerrainModule>().SaveToStream(terrainPath, ms);
-            m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
-            ms.Close();
+            using (MemoryStream ms = new MemoryStream())
+            {
+                scene.RequestModuleInterface<ITerrainModule>().SaveToStream(terrainPath, ms);
+                m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
+            }
 
             m_log.InfoFormat("[ARCHIVER]: Adding scene objects to archive.");
 
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
index 9fac9ff..80fa08a 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
@@ -1121,9 +1121,8 @@ namespace OpenSim.Region.CoreModules.World.Estate
             {
                 try
                 {
-                    MemoryStream terrainStream = new MemoryStream(terrainData);
-                    terr.LoadFromStream(filename, terrainStream);
-                    terrainStream.Close();
+                    using (MemoryStream terrainStream = new MemoryStream(terrainData))
+                        terr.LoadFromStream(filename, terrainStream);
 
                     FileInfo x = new FileInfo(filename);
                     remoteClient.SendAlertMessage("Your terrain was loaded as a " + x.Extension + " file. It may take a few moments to appear.");
diff --git a/OpenSim/Region/CoreModules/World/Estate/XEstateRequestHandler.cs b/OpenSim/Region/CoreModules/World/Estate/XEstateRequestHandler.cs
index 2366767..ec5af2b 100644
--- a/OpenSim/Region/CoreModules/World/Estate/XEstateRequestHandler.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/XEstateRequestHandler.cs
@@ -281,18 +281,8 @@ namespace OpenSim.Region.CoreModules.World.Estate
 
             rootElement.AppendChild(result);
 
-            return DocToBytes(doc);
+            return Util.DocToBytes(doc);
         }
 
-        private byte[] DocToBytes(XmlDocument doc)
-        {
-            MemoryStream ms = new MemoryStream();
-            XmlTextWriter xw = new XmlTextWriter(ms, null);
-            xw.Formatting = Formatting.Indented;
-            doc.WriteTo(xw);
-            xw.Flush();
-
-            return ms.ToArray();
-        }
     }
 }
diff --git a/OpenSim/Region/CoreModules/World/Serialiser/SerialiseObjects.cs b/OpenSim/Region/CoreModules/World/Serialiser/SerialiseObjects.cs
index 328fbf0..65f464a 100644
--- a/OpenSim/Region/CoreModules/World/Serialiser/SerialiseObjects.cs
+++ b/OpenSim/Region/CoreModules/World/Serialiser/SerialiseObjects.cs
@@ -54,13 +54,14 @@ namespace OpenSim.Region.CoreModules.World.Serialiser
         {
             string xmlstream = GetObjectXml(scene);
 
-            MemoryStream stream = ReformatXmlString(xmlstream);
-
-            stream.Seek(0, SeekOrigin.Begin);
-            CreateXmlFile(stream, fileName);
+            using (MemoryStream stream = ReformatXmlString(xmlstream))
+            {
+                stream.Seek(0, SeekOrigin.Begin);
+                CreateXmlFile(stream, fileName);
 
-            stream.Seek(0, SeekOrigin.Begin);
-            CreateCompressedXmlFile(stream, fileName);
+                stream.Seek(0, SeekOrigin.Begin);
+                CreateCompressedXmlFile(stream, fileName);
+            }
         }
 
         private static MemoryStream ReformatXmlString(string xmlstream)
@@ -112,13 +113,16 @@ namespace OpenSim.Region.CoreModules.World.Serialiser
         {
             #region GZip Compressed Version
 
-            FileStream objectsFileCompressed = new FileStream(fileName + ".gzs", FileMode.Create);
-            MemoryStream gzipMSStream = new MemoryStream();
-            GZipStream gzipStream = new GZipStream(gzipMSStream, CompressionMode.Compress);
-            xmlStream.WriteTo(gzipStream);
-            gzipMSStream.WriteTo(objectsFileCompressed);
-            objectsFileCompressed.Flush();
-            objectsFileCompressed.Close();
+            using (FileStream objectsFileCompressed = new FileStream(fileName + ".gzs", FileMode.Create))
+            using (MemoryStream gzipMSStream = new MemoryStream())
+            {
+                using (GZipStream gzipStream = new GZipStream(gzipMSStream, CompressionMode.Compress, true))
+                {
+                    xmlStream.WriteTo(gzipStream);
+                }
+
+                gzipMSStream.WriteTo(objectsFileCompressed);
+            }
 
             #endregion
         }
diff --git a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
index 2d28d6e..995e297 100644
--- a/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
+++ b/OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs
@@ -1145,7 +1145,7 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
 
             if (myMapImageJPEG.Length == 0)
             {
-                MemoryStream imgstream = new MemoryStream();
+                MemoryStream imgstream = null;
                 Bitmap mapTexture = new Bitmap(1,1);
                 ManagedImage managedImage;
                 Image image = (Image)mapTexture;
@@ -1192,10 +1192,7 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
                         image.Dispose();
 
                     if (imgstream != null)
-                    {
-                        imgstream.Close();
                         imgstream.Dispose();
-                    }
                 }
             }
             else
@@ -1639,4 +1636,4 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
         public uint itemtype;
         public ulong regionhandle;
     }
-}
\ No newline at end of file
+}