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On Dienstag, 20. Oktober 2009, 岳利军 wrote:
> Dear all:
> can you tell me why?
> After "ext_accpt" by server ,when server try to use
> "ext_close(connect_fd)" to close the sctp connect,it caused an error !!
> "ERROR: ext_close(1022) ---still in use!" I have a test later,even the sctp
> client have exit,the error will occur also. Then I add the code
> "ext_close(fd)" to the api socket_programes after "fd = ext_accpt()",the
> same error appear! when I use "ext_shutdown(fd,2)" ,it can down the
> connect,but can't close the fd.
> Can you tell me how can I close the connect fd in the server part,by
> the way,I can't close the "server_fd" by "ext_close(server_fd)" after did
> "ext_accpt" also!

The sctplib socket API implementation assumes that all SDs accepted by
ext_accept() are closed before the SD accepting the incoming connections is
closed.

Example:
sd = socket(...)

newSD1 = ext_accept()
...
ext_close(newSD1)
ext_close(sd)

If you call ext_close(sd) before ext_close(newSD1), you get the "still in
use"
error.


Best regards
--
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Dr. Thomas Dreibholz

University of Duisburg-Essen, Room ES210
Inst. for Experimental Mathematics Ellernstraße 29
Computer Networking Technology Group D-45326 Essen/Germany
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E-Mail:
dreibh AT iem.uni-due.de
Homepage: http://www.iem.uni-due.de/~dreibh
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• [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/20/2009
  • Re: [SCTP-Discussion] help:ext_close error!!, Michael Tüxen, 10/20/2009
  • Re: [SCTP-Discussion] help:ext_close error!!, Thomas Dreibholz, 10/20/2009
  • <Possible follow-up(s)>
  • [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/21/2009
    • Re: [SCTP-Discussion] help:ext_close error!!, Thomas Dreibholz, 10/21/2009
      • Re: [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/21/2009
  • [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/21/2009
  • [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/21/2009
    • [SCTP-Discussion] help:ext_close error!!, 岳利军, 10/21/2009

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