Release 10.1A: OpenEdge Development:
Progress 4GL Reference

ASYNC-REQUEST-COUNT attribute

The number of active asynchronous requests for the specified procedure or AppServer.

Data type: INTEGER

Access: Readable

Applies to: Procedure object handle, Server object handle, THIS-PROCEDURE system handle

For a procedure handle, this attribute is only meaningful if PROXY and PERSISTENT are set to TRUE. In all other cases, this attribute returns zero (0).

Progress sets this attribute to one (1) on the following handles:

A proxy persistent procedure handle created for an initial asynchronous request.
The server handle of the AppServer where the asynchronous persistent procedure is instantiated.

Progress increments this attribute:

On any proxy persistent procedure handle where an internal procedure defined in the specified remote persistent procedure context is executed asynchronously.
On any server handle where an internal or external procedure is executed asynchronously on the specified AppServer.

Progress decrements this attribute as part of processing the PROCEDURE-COMPLETE event for one of the associated asynchronous requests. The attribute is decremented before any associated event procedure is executed in the context of a PROCESS EVENTS, WAIT-FOR, or other I/O-blocking statement.