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Browse Prior Art Database

Performance Improvement to the EHLLAPI Wait (4) Function

IP.com Disclosure Number: IPCOM000102004D
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Covey, E: AUTHOR [+2]

Abstract

Disclosed is an expansion to the Emulation High Level Language Application Programming Interface (EHLLAPI) available in OS/2* Extended Edition 1.3 that increases the performance of the Wait (4) function up to 1/2 second.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 63% of the total text.

Performance Improvement to the EHLLAPI Wait (4) Function

       Disclosed is an expansion to the Emulation High Level
Language Application Programming Interface (EHLLAPI) available in
OS/2* Extended Edition 1.3 that increases the performance of the Wait
(4) function up to 1/2 second.

      The Emulator High Level Language Programming Interface is an
IBM product that enables interaction between 3270 and 5250-type
emulation sessions running under the OS/2 Extended Edition 1.3
Communications Manager. An EHLLAPI application program acts as a
programmed operator (a program that performs and monitors activities
in a workstation that are usually done by a human). Examples of this
are:
      1. Automation of repetitive tasks
      2. Consolidation of several complicated tasks into a
         single simple task.
      3. Simplification of existing host application
         interfaces.
      4. The monitoring of response time and availability.
      5. Automation of console operations.
      6. Transfer of data between the host and PC.

      The EHLLAPI Wait (4) function checks the status of the
3270/5250 emulation session. If the session is waiting on a host
response (indicated by X SYSTEM or X[] in the OIA), the Wait (4)
function will wait a specified interval of time to see if the
condition clears. When the condition clears or the time interval
lapses, the request is returned to the requester.

      Prior implementa...