When the notify exit gains control, it receives the following information:

• The lock index for which there is contention
• The LOCKDATA information you specified when you obtained the lock. This information can help your notify exit decide how to handle the lock contention. For instance, you might be able to determine why you obtained the lock and whether you can release it.
• Whether the lock is a persistent lock, which is indicated by a LOCKDATA field of zero.
• The connection ID (CONID) and connection name (CONNAME) associated with the request causing the contention
• The type of lock request (LOCKOPER=SET or LOCKOPER=NOTHELD) causing the contention.

This information is passed to the notify exit in the notify exit parameter list (NEPL), mapped by the IXLYNEPL macro:

NEPLCONTOKEN

Your connection token.

NEPLCONNAME

Your connection name.

NEPLCONDATA

Connect-time data you specified when you issued the IXLCONN macro to connect to the list structure. The use of this optional field is user defined. One possibility is to store the address and ALET of an area containing information used by your connection.

NEPLLIST

Indicates that the notify exit received control as a result of an IXLLIST request.

NEPLREBUILD

Indicates whether the target list structure was being rebuilt. When a list structure is being rebuilt, there is an interval in which the new structure and the old structure can both be the target of an IXLLIST request.

0

The target list structure was not being rebuilt or, if so, the target list structure was the original structure.

1

The target list structure was being rebuilt, and the target list structure was the new list structure.

NEPLLOCKINDEX

The lock table index for the lock for which there is contention.

NEPLOWNERLOCKDATA

The lock data specified with the LOCKDATA parameter when the lock was obtained

NEPLOWNERPERSISTENTLOCK

The lock was previously a persistent lock and the LOCKDATA field is now set to zero. See Recovering Persistent Locks and Reconnecting with Persistent Locks for more information about persistent locks.

NEPLPENDINGCONID

The connection ID associated with the pending request

NEPLPENDINGREQUESTTYPE

The pending request type

0

The pending request is LOCKOPER=NOTHELD

1

The pending request is LOCKOPER=SET

NEPLPENDINGCONNAME

The connection name of the pending request