DAT_EVD_POST_SE(3DAT) Direct Access Transport Library Functions

NAME

dat_evd_post_se - post Software event to the Event Dispatcher event
queue

SYNOPSIS

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

DAT_RETURN
dat_evd_post_se(
IN DAT_EVD_HANDLE evd_handle,
IN const DAT_EVENT *event
)

PARAMETERS

evd_handle
Handle for an instance of the Event Dispatcher


event
A pointer to a Consumer created Software Event.

DESCRIPTION

The dat_evd_post_se() function posts Software events to the Event
Dispatcher event queue. This is analogous to event arrival on the
Event Dispatcher software Event Stream. The event that the Consumer
provides adheres to the event format as defined in <dat.h>. The first
element in the event provides the type of the event
(DAT_EVENT_TYPE_SOFTWARE); the rest provide the event-type-specific
parameters. These parameters are opaque to a Provider. Allocation and
release of the memory referenced by the event pointer in a software
event are the Consumer's responsibility.


There is no ordering between events from different Event Streams. All
the synchronization issues between multiple Consumer contexts trying
to post events to an Event Dispatcher instance simultaneously are
left to a Consumer.


If the event queue is full, the operation is completed unsuccessfully
and returns DAT_QUEUE_FULL. The event is not queued. The queue
overflow condition does takes place and, therefore, the asynchronous
Event Dispatcher is not effected.

RETURN VALUES

DAT_SUCCESS
The operation was successful.


DAT_INVALID_HANDLE
The evd_handle parameter is invalid.


DAT_INVALID_PARAMETER
The event parameter is invalid.


DAT_QUEUE_FULL
The Event Dispatcher queue is full.

ATTRIBUTES

See attributes(7) 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(7)

July 16, 2004 DAT_EVD_POST_SE(3DAT)