Programmer's Guide to File Handling

Table of Contents

Index

Chapter 13: Callable File Handler (ExtFH)

• 13.1 Overview
  • 13.1.1 Supported Environments
  • 13.1.2 Supported Languages
  • 13.1.3 Supported Files
    • 13.1.3.1 Large Indexed Files
  • 13.1.4 File Operations
  • 13.1.5 File Position Indicator
• 13.2 Using the Callable File Handler
• 13.3 Calling the File Handler
  • 13.3.1 Calling the Callable File Handler from COBOL
  • 13.3.2 Calling the Callable File Handler from "C"
• 13.4 Data Structures
  • 13.4.1 File Control Description
  • 13.4.2 Record Area
    • 13.4.2.1 Using the Record Area
  • 13.4.3 Filename Area
    • 13.4.3.1 Using the Filename Area
  • 13.4.4 Key Definition Block
    • 13.4.4.1 Global Information Area
    • 13.4.4.2 Key Definition Area
    • 13.4.4.3 Component Definition Area
• 13.5 Operation Codes
  • 13.5.1 Standard Operation Codes
  • 13.5.2 Special Operation Codes
• 13.6 Relative Byte Addressing
  • 13.6.1 Obtaining the Relative Byte Address
  • 13.6.2 Using the Relative Byte Address
    • 13.6.2.1 Reading a Record
    • 13.6.2.2 Rewriting a Record
    • 13.6.2.3 Deleting a Record
• 13.7 Creating a New Index
• 13.8 Accessing a Compiler-generated FCD
• 13.9 Your Own File Handler
  • 13.9.1 File Handler Vectoring on UNIX Systems
• 13.10 Trace Facility
  • 13.10.1 How Tracing Works
  • 13.10.2 Operation
  • 13.10.3 The Configuration File
• 13.11 Configuring the Callable File Handler
  • 13.11.1 Configuration Options
  • 13.11.2 Example Configuration File
• 13.12 File Striping
  • 13.12.1 File Striping Configuration Options
  • 13.12.2 File Striping and Fileshare
• 13.13 Sample Program