vb.net - How to politely stop a TcpListener? -


i have tcp server works ok need stop , threads in safe way. far research abort method not ok

i debugged and, when server started , have no connections, seems code halts on line

server = new tcplistener(ipaddress.any, port)

so when call stopserver error wsacancelblokingcall can't figured out how stops server.

here's code complete except starttcpclient data received.

#region "tcp receive variables"     dim tcpopen boolean = false     private server tcplistener = nothing     private serverthread thread = nothing     friend ackstring string = "" #end region  #region "tcp"     public sub stopserver()         server.stop()         serverthread.abort()         tcpopen = false     end sub     public sub initserver(byval port integer)         server = new tcplistener(ipaddress.any, port)         serverthread = new thread(addressof connectionlistener)         serverthread.isbackground = true         serverthread.start()         tcpopen = true     end sub      private sub connectionlistener()         server.start()         while true             dim client tcpclient = server.accepttcpclient()             dim t new thread(addressof starttcpclient)             t.isbackground = true             t.start(client)         end while     end sub #end region

edit: make changes in code , seem work need.

public sub stopserver()     tcpopen = false     server.stop()     serverthread = nothing end sub private sub connectionlistener()     server.start()     while true         if tcpopen             if server.pending                 dim client tcpclient = server.accepttcpclient()                 dim t new thread(addressof starttcpclient)                 t.isbackground = true                 t.start(client)             else                 system.threading.thread.sleep(10)             end if         else             exit while         end if     end while end sub

  1. the connection should closed client (not server).

  2. the client should send application message server stop processing.

  3. the server should stop processing

  4. the server should perform begindisconnect

  5. the server should send response client indicating connection can closed

  6. the client should close connection.

  7. the server when beingdisconnect occurs should close/dispose listener.


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