What is Monmsg in as400?

What is Monmsg in as400?

MONMSG Introduction-Go4As400.com. The monitor message (MONMSG) command monitors for the escape/status/notification messages that exist in a program at run time and allows us to take the corrective action for those messages. The messages are sent to the program message queue for the conditions specified in the command.

How do I view end of file in CL?

The CL program or ILE CL procedure receives a record sequentially from the database file named INPUT. The procedure monitors for the end-of-file exception CPF0864 and goes to label EOF when the message is received.

What is CPF0000?

Monitors for every message with a generic message identifier that begins with a specific licensed program ( ppp ). For example, CPF0000 indicates that all notify, status, and escape messages beginning with CPF are monitored. If an error message is not monitored, it becomes a CPF9999 (function check).

How do you write CL program in as400?

To enter CL source, follow these steps:

1. Select option 8 (Edit source) on the Programmer Menu and specify STARTUP in the Parm field.
2. Specify CLLE in the Type field and press the Enter key.
3. On the SEU display, use the I (insert) line command to enter the CL commands (CALL is a CL command).

How do I read a file in as400?

READ opcode in rpgle-go4as400.com. Read operation reads the records of a full procedural file. First of all it reads the record where currently the pointer is and then advances the pointer to the next record. The READ operation applies a record lock to files that are open in update mode.

What is message file in as400?

Message is information that is communicated between users, programs and workstation. Since it is not defined in the system, it will not have message-id or message file. All impromptu messages are supplied message text with the message command itself.

What is * PSSR in Rpgle?

The *PSSR error subroutine is coded on the calculation specifications. If a program error occurs, ILE RPG passes control to the *PSSR error subroutine. The subroutine checks to determine if the exception was caused by a divide operation in which the divisor is zero.

What is data area?

Data areas are used to communicate and store data used by several programs either within a job or between jobs. A program can use the value of a data area by using the Retrieve Data Area (RTVDTAARA) command. The system does not allow two commands to change the same data area at the same time.

What is monitor message (monmsg) command?

· The monitor message (MONMSG) command monitors for the escape/status/notification messages that exist in a program at run time and allows us to take the corrective action for those messages. · The messages are sent to the program message queue for the conditions specified in the command.

What is the use of monmsg?

By monitoring for status or notify message, your program can detect this condition and not allow the function to continue. The MONMSG is specified immediately following the last declared command in the CL program.

What is a program level monmsg command?

If one or more MONMSG commands are placed at the beginning of the program, immediately following the declare commands or the PGM command if there are no declare commands, they monitor messages sent by all of the commands in the program (maximum of 100). This is called a program-level MONMSG command.

What is the difference between Goto and Exec in monsg?

If a command is coded for the EXEC parameter on a MONMSG command that is placed at the beginning of a program, only the GOTO command can be used, and it must specify the label for the command to which control is to be passed if a monitored message occurs.