DAT_RSP_CREATE(3DAT)DAT_RSP_CREATE(3DAT)NAMEdat_rsp_create - create a Reserved Service Point
SYNOPSIS
cc [ flag... ] file... -ldat [ library... ]
#include <dat/udat.h>
DAT_RETURN
dat_rsp_create (
IN DAT_IA_HANDLE ia_handle,
IN DAT_CONN_QUAL conn_qual,
IN DAT_EP_HANDLE ep_handle,
IN DAT_EVD_HANDLE evd_handle,
OUT DAT_RSP_HANDLE *rsp_handle
)
PARAMETERS
ia_handle
Handle for an instance of DAT IA.
conn_qual
Connection Qualifier of the IA the Reserved Service Point
listens to.
ep_handle
Handle for the Endpoint associated with the Reserved Ser‐
vice Point that is the only Endpoint that can accept a
Connection Request on this Service Point. The value
DAT_HANDLE_NULL requests the Provider to associate a
Provider-created Endpoint with this Service Point.
evd_handle
The Event Dispatcher to which an event of Connection
Request arrival is generated.
rsp_handle
Handle to an opaque Reserved Service Point.
DESCRIPTION
The dat_rsp_create() function creates a Reserved Service Point with the
specified Endpoint that generates, at most, one Connection Request that
is delivered to the specified Event Dispatcher in a Notification event.
RETURN VALUES
DAT_SUCCESS
The operation was successful.
DAT_INSUFFICIENT_RESOURCES
The operation failed due to resource lim‐
itations.
DAT_INVALID_HANDLE
The ia_handle, evd_handle, or ep_handle
parameter is invalid.
DAT_INVALID_PARAMETER
The conn_qual parameter is invalid.
DAT_INVALID_STATE
Parameter in an invalid state. For exam‐
ple, an Endpoint was not in the Idle
state.
DAT_CONN_QUAL_IN_USE
Specified Connection Qualifier is in use.
USAGE
The usage of a Reserve Service Point is as follows:
o The DAT Consumer creates a Local Endpoint and configures it
appropriately.
o The DAT Consumer creates a Reserved Service Point specifying
the Local Endpoint.
o The Reserved Service Point performs the following:
o Collects native transport information reflecting a
received Connection Request.
o Creates a Pending Connection Request.
o Creates a Connection Request Notice (event) that
includes the Pending Connection Request (which includes,
among others, Reserved Service Point Connection Quali‐
fier, its Local Endpoint, and information about remote
Endpoint).
o Delivers the Connection Request Notice to the Consumer-
specified target (CNO) evd_handle. The Local Endpoint is
transitioned from Reserved to Passive Connection Pending
state.
o Upon receiving a connection request, or at some time subse‐
quent to that, the DAT Consumer must either accept() or
reject() the Pending Connection Request.
o If accepted, the original Local Endpoint is now in a Con‐
nected state and fully usable for this connection, pending
only native transport mandated RTU messages. This includes
binding it to the IA port if that was not done previously.
The Consumer is notified that the Endpoint is in a Connected
state by a Connection Established Event on the Endpoint con‐
nect_evd_handle.
o If rejected, the Local Endpoint point transitions into
Unconnected state. The DAT Consumer can elect to destroy it
or reuse it for other purposes.
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 ALSOlibdat(3LIB), attributes(5)
Jul 16, 2004 DAT_RSP_CREATE(3DAT)
