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Automatic Retry in Pc-Host Processing

IP.com Disclosure Number: IPCOM000034772D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Decker, SR: AUTHOR

Abstract

This article describes a method used in the Professional Work Manager (PWM) to compensate for the different processing characteristics of the Host and a PC or PS2 workstation connected to it during automated interaction between these two processors. PWM provides a command facility that allows its users to create procedures call Activities. These Activities have the ability to interact with a Host system or application on behalf of the user. An Exception is an unexpected event that inhibits the continuation of an Activity's execution. It is often important in the execution of a PWM Activity to look for a unique character string that provides assurance by its presence that all is going according to plan. The Search command is used to look in the Host's presentation space (a buffer area used to hold the Host screen image).

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Automatic Retry in Pc-Host Processing

This article describes a method used in the Professional Work Manager (PWM) to compensate for the different processing characteristics of the Host and a PC or PS2 workstation connected to it during automated interaction between these two processors. PWM provides a command facility that allows its users to create procedures call Activities. These Activities have the ability to interact with a Host system or application on behalf of the user. An Exception is an unexpected event that inhibits the continuation of an Activity's execution. It is often important in the execution of a PWM Activity to look for a unique character string that provides assurance by its presence that all is going according to plan. The Search command is used to look in the Host's presentation space (a buffer area used to hold the Host screen image). Search also positions the cursor to the point where the string is found. When a Search fails to find an expected character string, the PWM user can employ a command called Retry, which repeats the search for a given number of times. It performs a slight delay and then searches the Host presentation space again looking for the string that was the object of the last failed Search. If the last Search was successful, the Retry command is not performed. The underlying purpose of Retry is to give a busy Host time to complete its current operations in order to respond with the string in question. For instance, if the VM 370 command "Q RDR" were sent to the Host, the response time would depend on how bus...