Rename the stream extension method WebUtil.CopyTo() to WebUtil.CopyStream().

.NET 4.0 added the method Stream.CopyTo(stream, bufferSize). For .NET 3.5
and before, WebUtil defined an extension method for Stream with the signature
Stream.CopyTo(stream, maxBytesToCopy). The meaning of the second parameter
is different in the two forms and depending on which compiler and/or
runtime you use, you could get one form or the other. Crashes ensue.
This change renames the WebUtil stream copy method to something that
cannot be confused with the new CopyTo method defined in .NET 4.0.

2 files changed, 7 insertions, 2 deletions

diff --git a/OpenSim/Framework/MultipartForm.cs b/OpenSim/Framework/MultipartForm.cs
index 90c4007..7a13e8b 100644
--- a/OpenSim/Framework/MultipartForm.cs
+++ b/OpenSim/Framework/MultipartForm.cs
@@ -119,7 +119,7 @@ namespace OpenSim.Framework
                 // Copy the temporary stream to the network stream
                 formDataStream.Seek(0, SeekOrigin.Begin);
                 using (Stream requestStream = request.GetRequestStream())
-                    formDataStream.CopyTo(requestStream, (int)formDataStream.Length);
+                    formDataStream.CopyStream(requestStream, (int)formDataStream.Length);
             }
 
             #endregion Stream Writing
diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index 77f3d9b..ead8f46 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -510,8 +510,13 @@ namespace OpenSim.Framework
         /// <remarks>
         /// Copying begins at the streams' current positions. The positions are
         /// NOT reset after copying is complete.
+        /// NOTE!! .NET 4.0 adds the method 'Stream.CopyTo(stream, bufferSize)'.
+        /// This function could be replaced with that method once we move
+        /// totally to .NET 4.0. For versions before, this routine exists.
+        /// This routine used to be named 'CopyTo' but the int parameter has
+        /// a different meaning so this method was renamed to avoid any confusion.
         /// </remarks>
-        public static int CopyTo(this Stream copyFrom, Stream copyTo, int maximumBytesToCopy)
+        public static int CopyStream(this Stream copyFrom, Stream copyTo, int maximumBytesToCopy)
         {
             byte[] buffer = new byte[4096];
             int readBytes;