File Handling

Table of Contents

Index

Chapter 7: Callable File Handler and Callable Sort APIs

• 7.1 Callable File Handler
  • 7.1.1 Overview
  • 7.1.2 Data Structures
    • 7.1.2.1 File Control Description (FCD)
    • 7.1.2.2 Record Area
    • 7.1.2.3 Filename Area
    • 7.1.2.4 Key Definition Block
      • 7.1.2.4.1 Global Information Area
      • 7.1.2.4.2 Key Definition Area
      • 7.1.2.4.3 Component Definition Area
  • 7.1.3 Accessing the FCD
  • 7.1.4 Operation Codes
  • 7.1.5 Relative Byte Addressing
    • 7.1.5.1 Read a Record
    • 7.1.5.2 Rewrite a Record
    • 7.1.5.3 Delete a Record
  • 7.1.6 Creating Your Own File Handler
  • 7.1.7 Creating a New Index File
  • 7.1.8 Compression Routines
    • 7.1.8.1 Micro Focus Compression Routines
      • 7.1.8.1.1 CBLDC001 Compression Routine
      • 7.1.8.1.2 CBLDC003 Compression Routine
      • 7.1.8.1.3 Calling a Micro Focus Compression Routine
    • 7.1.8.2 User Supplied Compression Routines
• 7.2 Callable Sort Module