Programmer's Guide to File Handling

Table of Contents

Index

Chapter 6: Sharing Files

• 6.1 Overview
• 6.2 File and Record Locking
  • 6.2.1 Default locking
  • 6.2.2 Locking Files
  • 6.2.3 Locking Records
    • 6.2.3.1 Single Record Locking
      • 6.2.3.1.1 Manual Single Record Locking
      • 6.2.3.1.2 Automatic Single Record Locking
    • 6.2.3.2 Multiple Record Locking
      • 6.2.3.2.1 Manual Multiple Record Locking
      • 6.2.3.2.2 Automatic Multiple Record Locking
• 6.3 File Status Codes
• 6.4 Encountering a Locked Record
• 6.5 OPEN WITH LOCK
• 6.6 Examples of File and Record Locking
• 6.7 Locking Rules for Each File Organization
  • 6.7.1 Record Sequential, Relative and Indexed Files
  • 6.7.2 Line Sequential Files
  • 6.7.3 All File Types
• 6.8 Programming Considerations
• 6.9 Sample Programs
  • 6.9.1 Running the Sample Programs
    • 6.9.1.1 Creating the file
    • 6.9.1.2 Sharing the file