Host Language Interface (HLI)

Overview

The Model 204 Host Language Interface (HLI) facility enables you to invoke nearly all the system functions from applications written in programming languages such as COBOL, FORTRAN, PL/1, Assembler, Pascal, and C.

Using the HLI facility, you can access Model 204 from a host language application and process against the database.

HLI programming guide topics

The HLI programming guide consists of the pages listed below.

This guide is directed primarily to the application programmer who is using the HLI facility for the first time.

The information about multiple cursor IFSTRT threads is provided for both first-time and experienced HLI application programmers who are using that functionality for the first time.

This list is also available as a "See also" link from each of the programming guide pages.

• HLI: Threads
• HLI: IFSTRT processing
• HLI: IFDIAL processing
• HLI: Using Model 204 completion return codes
• HLI: Model 204 parameters
• HLI: Model 204 files and records
• HLI: Model 204 fields and variables
• HLI: Find criteria for Model 204 data
• HLI: Locking behavior of HLI calls
• HLI: Record locking conflicts
• HLI: Model 204 security
• HLI: Model 204 tables
• HLI: Model 204 data sets in HLI jobs
• HLI: IFAM2 CICS processing
• HLI: Transactions
• HLI: Model 204 recovery and checkpoints