xio_readef(3)                       CLIX                       xio_readef(3)



  NAME

    xio_readef, xio_clref, xio_setef - Event flag mask functions

  LIBRARY

    Intergraph XIO Library (libix.a)

  SYNOPSIS

    unsigned long xio_readef(
      void );

    unsigned long xio_clref(
      unsigned long mask );

    unsigned long xio_setef(
      unsigned long mask );

  PARAMETERS

    mask   Specifies the event flag mask.

  DESCRIPTION

    The xio_readef() function returns the event flag mask.  Cleared bits in
    the mask possibly represent asynchronous requests that have not completed.
    The process monitors which bits in the event flag mask are currently used
    by asynchronous requests.

    The xio_clref() function provides a mechanism to clear event flag numbers
    in the event flag mask.  All bits set in mask will be cleared.

    The xio_setef() function provides a mechanism to set event flag numbers in
    the event flag mask.  All bits set in mask will be set.

  RETURN VALUES

    Upon successful completion, the event flag mask is returned.  No errors
    are possible.

  RELATED INFORMATION

    Functions:  xio_allocef(3), xio_waitfr(3), xio_notify(3), intro(3)










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