[Mono-bugs] [Bug 329649] Socket(SocketInformation) constructor not implemented.

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https://bugzilla.novell.com/show_bug.cgi?id=329649#c1


Dick Porter <dick at novell.com> changed:

           What    |Removed                                         |Added
----------------------------------------------------------------------------
           Severity|Normal                                          |Enhancement




--- Comment #1 from Dick Porter <dick at novell.com>  2007-11-01 15:19:56 MST ---
After researching the gaps in the documentation, I've found:

http://blogs.msdn.com/malarch/archive/2005/12/14/503884.aspx (Socket
Duplication, pt 1)
http://blogs.msdn.com/malarch/archive/2005/12/26/507461.aspx (Socket
Duplication, pt 2)

which explain that the SocketInformation.ProtocolInformation property holds a
WSAPROTOCOL_INFO struct.  This is obtained from an unmanaged
WSADuplicateSocket() call, which is used for passing sockets to other
processes.

To implement this on Linux (and POSIX) systems will involve passing file
descriptors over Unix domain sockets using sendmsg().  Doable, but with
problems: the ugliest being, do we have each process listen on a socket from
startup; or do we somehow interrupt and signal a process to tell it to pick up
a fd we're trying to send to it?


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