File Handling

Table of Contents

Index

Chapter 7: File Handler API

• 7.1 Overview
• 7.2 Data Structures
  • 7.2.1 File Control Description (FCD)
  • 7.2.2 Record Area
  • 7.2.3 Filename Area
  • 7.2.4 Key Definition Block
    • 7.2.4.1 Global Information Area
    • 7.2.4.2 Key Definition Area
    • 7.2.4.3 Component Definition Area
• 7.3 Accessing the FCD
• 7.4 Operation Codes
  • 7.4.1 Standard Operation Codes
  • 7.4.2 Special Operation Codes
• 7.5 Relative Byte Addressing
  • 7.5.1 Read a Record
  • 7.5.2 Rewrite a Record
  • 7.5.3 Delete a Record
• 7.6 Creating Your Own File Handler
  • 7.6.1 Using Your Own File Handler
  • 7.6.2 Using Your Own File-type Specific File Handler
• 7.7 Creating a New Index File
• 7.8 Compression Routines
  • 7.8.1 Micro Focus Compression Routines
    • 7.8.1.1 CBLDC001
    • 7.8.1.2 CBLDC003
    • 7.8.1.3 Calling a Micro Focus Compression Routine
  • 7.8.2 User-supplied Compression Routines