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Programming  
The following are Michael's collection of tips, techniques, and helpful info for RPG programmers.

 

Style Guide

Click Here for my personal RPG PROGRAMMING style guide. (Updated January / 2011 )
 

 Click Here for the JobLog_Write function and service program code. (Updated January / 2011 )

The sleep() and usleep() api's (Added August/2008)
These "C" library functions are a very clean way to make your program sleep (delay), and give you the ability to create a delay of a single microsecond. (Something the DLYJOB can not do.)

 

Time_TopOfTheHour Function (Added August/2008)
Here's a nifty function that returns the top of the hour for the system time, or for a time value passed as an option parameter.

 

The TIME_DelayJobUntil Procedure (Added August/2008)
This procedure allows you to do something the DLYJOB can not do; delay a job and resume at a later time while intermittingly checking for a shutdown request.  No longer do your jobs have to be ended abnormally if you need to shut down the job, subsystem, or system.  This procedure will check at frequent intervals for a shutdown (10 second default, but practically any value can be optionally passed.)  The procedure will also resume at the very microsecond that the requested time is reached.

 

RDi Free Trial (Added July/2008)
 Click this link to be directed to the IBM site where you can download a free 60 day trial of the new Rational Developer for System i V7.1, also known as Rdi.    If you've been using Websphere, then RDi will look identical.  If you have been stuck on PDM/SEU, then this trial will give you some exposure to the future direction of application development on the i5 platform.

 

The system() api (Added August/2008)
Click this link to look at an example of using the system() api call.  The system() api is a great alternative to QCMDEXC.

 

Executing i5/OS Commands From RPG - The Clean and Easy Way (Added August/2008)
Click this link to see how to create a service program of i5/OS commands that can quickly and cleanly be used in RPG programs.