Due: 12/10/1999	CS 429: HW # 4	Points 50  .../hw4.html

• Implement asynchronous or non-blocking Client.
• When server is done, server 'calls back' client with results.

• Write sortClientHomework4.c
• Write sortServerHomework4.c
• Client
  • Register the 'call back' routine. Use registerrpc
  • Set timeout = 0 before invoking server. Use clnt_control to do it.
  • Invoke server.
  • Invoke svc_run()... just wait since nothing better to do.
  • In real-world, parent would invoke svc_run while child can be busy with other computations. But, for now, let us keep to one process.
  • Eventually server will call the call back routine.
• Server
  • When client calls do NOT send any result in response since client is not waiting there.
  • Do server computation.
  • Since sorting does not take much time, use sleep(someSeconds) to simulate a longer computation.
  • Invoke client's call back routine and send results.
  • All done.
• Use hydra.cs.bgsu.edu cc compiler. Allegro is flaky (same account as Allegro).
• Run the program several times.
• Create a readme4 file... Enable read access to me.
• Hand-in a printed copy of readme4 file, program listing, input, output.
• Resources: Today's class discussion and rpc resource on web.
  • RPC directory...
  • Sample rpc program readme file
  • Sample rpc program interface spec for sort program (sort.x)
  • Sample rpc program client
  • Sample rpc program server