COBOL Manual for TNS/E Programs (H06.03+)

Contents

HP COBOL Manual for TNS/E Programs—520347-003

28. Disk Input and Output (continued)

Optimizing Disk File Storage 28-37

Avoiding Deadlock 28-37

Locking and Unlocking Files and Records 28-38

Setting Time Limits on Input-Output Operations 28-38

Using Enscribe and Operating System Routines 28-39

Physical File Names 28-40

Obtaining File Numbers and Other File Attributes 28-41

Determining Whether Two COBOL File Names Specify the Same Physical

File 28-41

Purging a File From an HP COBOL Program 28-42

Purging the Contents of a File From an HP COBOL Program 28-43

Renaming a File From an HP COBOL Program 28-44

Creating a File Having Alternate Keys From an HP COBOL Program 28-44

29. Terminal Input and Output

Using ACCEPT and DISPLAY With a Terminal 29-2

Guardian Environment 29-2

OSS Environment 29-4

Using a Terminal as a File 29-4

Prompting the Terminal Operator for Input 29-6

Sharing a Terminal 29-8

Terminal Associated With a Command Interpreter 29-8

Terminal Not Associated With a Command Interpreter 29-8

Non-COBOL Modules 29-8

Getting Break Ownership 29-9

Transferring Break Ownership

29-9

Communicating With an Operator or Process

29-10

Writing to a Console 29-11

Writing to a Terminal or Printer 29-12

Reading From a Terminal or Process 29-12

Reading and Writing Numeric Data 29-13

Logging Program Activity Information to a Terminal 29-15

30. Printer and Spooler Output

Using a Printer Directly 30-1

Understanding Spoolers 30-2

Spooler Components 30-2

Jobs 30-4