dat_evd_set_unwaitable(3dat) [opensolaris man page]

dat_evd_set_unwaitable(3DAT)			     Direct Access Transport Library Functions			      dat_evd_set_unwaitable(3DAT)

NAME

       dat_evd_set_unwaitable - transition the Event Dispatcher into an unwaitable state

SYNOPSIS

       cc [ flag... ] file... -ldat [ library... ]
       #include <dat/udat.h>

       DAT_RETURN
	   dat_evd_set_unwaitable(
	   IN	 DAT_EVD_HANDLE    evd_handle
	   )

PARAMETERS

       evd_handle    Handle for an instance of Event Dispatcher.

DESCRIPTION

       The  dat_evd_set_unwaitable()  transitions the Event Dispatcher into an unwaitable state. In this state, calls to dat_evd_wait(3DAT) return
       synchronously  with  a  DAT_INVALID_STATE  error,  and  threads	already  blocked  in  dat_evd_wait()  are  awakened  and  return  with	 a
       DAT_INVALID_STATE  error  without  any  further	action	by  the  Consumer.  The actual state of the Event Dispatcher is accessible through
       dat_evd_query(3DAT) and is DAT_EVD_UNWAITABLE after the return of this operation.

       This call does not affect a CNO associated with this EVD at all. Events arriving on the EVD after it is set unwaitable  still  trigger  the
       CNO  (if  appropriate), and can be retrieved with dat_evd_dequeue(3DAT). Because events can arrive normally on the EVD, the EVD might over-
       flow; the Consumer is expected to protect against this possibility.

RETURN VALUES

       DAT_SUCCESS	     The operation was successful.

       DAT_INVALID_HANDLE    The evd_handle parameter is invalid.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard: uDAPL, 1.1, 1.2    |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dat_evd_clear_unwaitable(3DAT), dat_evd_dequeue(3DAT), dat_evd_query(3DAT), dat_evd_wait(3DAT), libdat(3LIB), attributes(5)

SunOS 5.11							    16 Jul 2004 				      dat_evd_set_unwaitable(3DAT)

dat_evd_free(3DAT)				     Direct Access Transport Library Functions					dat_evd_free(3DAT)

NAME

       dat_evd_free - destroy an instance of the Event Dispatcher

SYNOPSIS

       cc [ flag... ] file... -ldat [ library... ]
       #include <dat/udat.h>

       DAT_RETURN
	   dat_evd_free (
	   IN	 DAT_EVD_HANDLE    evd_handle
	   )

PARAMETERS

       evd_handle      Handle for an instance of the Event Dispatcher.

DESCRIPTION

       The dat_evd_free() function destroys a specified instance of the Event Dispatcher.

       All  events  on	the  queue  of the specified Event Dispatcher are lost. The destruction of the Event Dispatcher instance does not have any
       effect on any DAT Objects that originated an Event Stream that had fed events to the Event Dispatcher instance. There should  be  no  event
       streams feeding the Event Dispatcher and no threads blocked on the Event Dispatcher when the EVD is being closed as at the time when it was
       created.

       Use of the handle of the destroyed Event Dispatcher in any consequent operation fails.

RETURN VALUES

       DAT_SUCCESS	       The operation was successful.

       DAT_INVALID_HANDLE      The evd_handle parameter is invalid

       DAT_INVALID_STATE       Invalid parameter. There are Event Streams associated with the Event Dispatcher feeding it.

USAGE

       Consumers are advised to destroy all Objects that originate Event Streams that feed an instance of the Event Dispatcher	before	destroying
       it. An exception to this rule is Event Dispatchers of an IA.

       Freeing an IA automatically destroys all Objects associated with it directly and indirectly, including Event Dispatchers.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard: uDAPL, 1.1, 1.2    |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libdat(3LIB), attributes(5)

SunOS 5.10							    16 Jul 2004 						dat_evd_free(3DAT)