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 Devices:
 serial.device
  AbortIO
  BeginIO
  CMD_CLEAR
  CMD_FLUSH
  CMD_READ
  CMD_RESET
  CMD_START
  CMD_STOP
  CMD_WRITE
  CloseDevice
  OpenDevice
  SDCMD_BREAK
  SDCMD_QUERY
  SDCMD_SETPARAMS
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GuruMeditation
Docs » Autodocs » serial.device » AbortIO

NAME

       AbortIO(ioRequest) -- abort an I/O request
               A1

FUNCTION

      This is an exec.library call.
      This function attempts to aborts a specified read or write request.
      If the request is active, it is stopped immediately. If the request is
      queued, it is painlessly removed.  The request will be returned
      in the same way any completed request it.
      After AbortIO(), you must generally do a WaitIO().

INPUTS

      iORequest  -- pointer to the IORequest Block that is to be aborted.

RESULT

      io_Error -- if the Abort succeded, then io_Error will be
           #IOERR_ABORTED (-2) and the request will be flagged as
           aborted (bit 5 of io_Flags is set). If the Abort
           failed, then the Error will be zero.

BUGS

       Previous to version 34, the serial.device would often hang when
       aborting CTS/RTS handshake requests.  This was the cause of the
       incorrect assumption that AbortIO() does not need to be followed
       by a wait for a reply (or a WaitIO()).

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