[Mono-dev] Bug in Socket.BeginSendFile

[Torello Querci]

Hi,

working on Socket class I find that BeginSendFile method is broken.
Main.cs in attach is a test case.
On unpatched mono version I get

Unhandled Exception:
System.ArgumentException: Invalid IAsyncResult -
Datatype:System.Runtime.Remoting.Messaging.AsyncResult
Parameter name: syncResult
  at System.Net.Sockets.Socket.EndSendFile (IAsyncResult asyncResult)
[0x00000] in <filename unknown>:0
  at test_sendfile.MainClass.FileSendCallback (IAsyncResult ar) [0x00000]
in <filename unknown>:0


Since I need to have async send file working I try to fix it instead
realize all on my code.
Patch is included in this mail.

Please can anyone give a look?
Need I to fill a bug report?

Best Regards
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