Fixes HTTP.post_form (http://ironruby.codeplex.com/WorkItem/View.aspx…

…?WorkItemId=1353). Socket#write was not flushing the data, and so a later read could block since the endpoint would not send any response

Merlin/External.LCA_RESTRICTED/Languages/IronRuby/mspec/ironruby-tags/critical_tags.txt

@@ -44,20 +44,6 @@ core\thread\critical_tags.txt:0:critical:Thread.critical= can be mismatched
 core\thread\raise_tags.txt:0:critical:Thread#raise on another thread re-raises active exception
 core\thread\critical_tags.txt:0:unstable:Thread.critical= does not change status of other existing threads
 language\method_tags.txt:0:critical:Calling a method fails with both lambda and block argument
-library\net\ftp\get_tags.txt:0:critical:Net::FTP#get (binary mode)
-library\net\ftp\getbinaryfile_tags.txt:0:critical:Net::FTP#getbinaryfile
-library\net\ftp\retrbinary_tags.txt:0:critical:Net::FTP#retrbinary
-library\net\http\http\get_print_tags.txt:0:critical:Net::HTTP.get_print when passed URI it prints the body of the specified uri to $stdout
-library\net\http\http\get_print_tags.txt:0:critical:Net::HTTP.get_print when passed host, path, port it prints the body of the specified uri to $stdout
-library\net\http\http\lock_tags.txt:0:critical:Net::HTTP#lock sends a LOCK request to the passed path and returns the response
-library\net\http\http\post_form_tags.txt:0:critical:Net::HTTP.post_form when passed URI POSTs the passed form data to the given uri
-library\net\http\http\post_tags.txt:0:critical:Net::HTTP#post
-library\net\http\http\propfind_tags.txt:0:critical:Net::HTTP#propfind
-library\net\http\http\proppatch_tags.txt:0:critical:Net::HTTP#proppatch
-library\net\http\http\put_tags.txt:0:critical:Net::HTTP#put
-library\net\http\http\request_tags.txt:0:critical:Net::HTTP#request
-library\net\http\http\send_request_tags.txt:0:critical:Net::HTTP#send_request
-library\net\http\http\unlock_tags.txt:0:critical:Net::HTTP#unlock
 library\resolv\get_address_tags.txt:0:critical:Resolv#getaddress
 library\resolv\get_addresses_tags.txt:0:critical:Resolv#getaddresses
 library\resolv\get_name_tags.txt:0:critical:Resolv#getname

Merlin/External.LCA_RESTRICTED/Languages/IronRuby/mspec/ironruby-tags/library/net/ftp/get_tags.txt

@@ -1,4 +1,4 @@
-critical:Net::FTP#get (binary mode)
+fails:Net::FTP#get (binary mode)
 fails:Net::FTP#get (text mode) sends the RETR command to the server
 fails:Net::FTP#get (text mode) returns nil
 fails:Net::FTP#get (text mode) saves the contents of the passed remote file to the passed local file

Merlin/External.LCA_RESTRICTED/Languages/IronRuby/mspec/ironruby-tags/library/net/ftp/getbinaryfile_tags.txt

@@ -1 +1 @@
-critical:Net::FTP#getbinaryfile
+fails:Net::FTP#getbinaryfile

Merlin/External.LCA_RESTRICTED/Languages/IronRuby/mspec/ironruby-tags/library/net/ftp/retrbinary_tags.txt

@@ -1 +1 @@
-critical:Net::FTP#retrbinary
+fails:Net::FTP#retrbinary

Merlin/Main/Languages/Ruby/Libraries.LCA_RESTRICTED/socket/SocketStream.cs

@@ -49,10 +49,15 @@ internal class SocketStream : System.IO.Stream {
         }
 
         public override void Flush() {
+            if (_internalWriteBuffer.Count == 0) {
+                return;
+            }
+
             byte[] bufferedData = _internalWriteBuffer.ToArray();
             int bytesSent = _socket.Send(bufferedData);
             if (bytesSent < bufferedData.Length) {
                 // TODO: Resend the rest
+                System.Diagnostics.Debug.Assert(false, "Partial data sent");
             }
             _internalWriteBuffer.Clear();
         }
@@ -119,6 +124,7 @@ internal class SocketStream : System.IO.Stream {
                     Flush();
                 }
             }
+            Flush();
         }
     }
 }