drivers/network/afd/doc/simple_select.txt

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   4    ActivePoll -> Timer, Dpc, Handles
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   7    FCB -> Polls Involved In ...
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  10 What poll needs to do:
  11  Accumulate:
  12   for each fcb
  13    If error is set, check error condition on fcb on entry
  14    If writable is set, check fcb on entry for zero send content
  15    If readable is set, check fcb has nonzero read content
  16
  17  If any handle was not valid, complete fail
  18
  19  If any of the above checks were true, complete success
  20  Otherwise:
  21   make an active poll object
  22   for each fcb, make a poll entry
  23    chain the poll entry to the fcb
  24    set summary bits in fcb state for polling (what must be polled)
  25   chain the active poll object to the device ext
  26   set timer and dpc
  27   pending
  28
  29 complete select:
  30  for each fcb
  31   find the poll entry in the fcb and unchain it
  32   rescan poll bits for this fcb
  33  get irp from poll object, and deallocate poll object
  34  complete irp
  35
  36 select timeout:
  37  Find the poll object in the device ext chain and unchain it
  38  complete select with timeout
  39
  40 fcb send complete and connect complete:
  41  if no more send irps and send bit set in summary
  42   find each poll entry with send bit set and complete select with (1) on it
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  44 fcb recv complete:
  45  if fcb has recv data and recv bit set in summary
  46   find each poll entry with recv bit set and complete select with (1) on it
  47