Using the Callout Gateway

• About This Book
• Introduction
• Callout Gateway Concepts and Terminology
• Overview of $ZF Functions
• Compatible Languages and Compilers
• Running Programs or System Commands with $ZF(-100)
• Introduction
• Program Execution
• Logging Commands and Redirecting Output
• Adding the %System_Callout:USE Privilege
• Creating an InterSystems Callout Library
• Introduction to Callout Libraries
• ZFEntry Linkage Options
• Callout Library Runup and Rundown Functions
• Troubleshooting
• Invoking Callout Library Functions
• Callout Library Interfaces
• Using $ZF(-3) for Simple Library Function Calls
• Using $ZF(-5) to Access Libraries by System ID
• Using $ZF(-6) to Access Libraries by User Index
• Statically Linked Callout Functions
• Invoking Statically Linked Callout Functions
• Creating a Custom CACHE.EXE File in Windows
• Creating a Custom CACHE.EXE File in UNIX®, Linux, or OS-X
• Special Considerations for UNIX® and Related Operating Systems
• Additional Call-Out Signal Processing
• InterSystems Callout Quick Reference
• Using Statically Linked Functions
• $ZF(-100): Running Programs or System Commands
• $ZF(-3) and $ZF(-5): Accessing Libraries by Name
• $ZF(-6): Accessing Libraries by User Index