- 1 What is the max size of Commarea?
- 2 What is Commarea and how this is useful?
- 3 What is link and XCTL in CICS?
- 4 What is the maximum size of a dfhcommarea?
What is the max size of Commarea?
The length of a COMMAREA on a RETURN command can vary from transaction to transaction, up to a theoretical upper limit of 32 763 bytes.
What happens if we try to send the data with size more than 32K in CICS?
Re: COBOL CICS passing data more than 32K However, program A will not be ignoring “data more than 32K” — if program B attempts to use DFHCOMMAREA with more than 32767 bytes, typically the region will ABEND — I’ve seen it happen — in which case program A will not be executing since the region will not be executing.
What is COMMAREA?
The COMMAREA specifies the name of a data area (known as a communication area ) in which data is passed to a program or transaction. It is an option of the LINK, XCTL, and RETURN commands.
What is link and XCTL and explain its difference?
Link is used to go from one module to another and then return to the first module such that the link to a module is used to provide the first some data. Whereas XCTL is used to go from one module without a need to return to the first module.
What is Nohandle Have you ever used it?
The NOHANDLE option in this command requests CICS to ignore any exception condition that occurs when the command is executed. That is, CICS returns control to the application program at the instruction immediately following the command. The program can determine the results of the command.
What is Commarea and how this is useful?
COMMAREA – generally this option is used along with the TRANSID option to send data back to program which executes the Transaction ID so that it is used while executing that transid. CHANNEL – A channel name can be supplied to send some data back.
What is Channel and container in CICS?
In simple terms, a container is a storage area managed by CICS that can hold any form of application data with no restriction on size or format and a channel is a reference to a collection of containers.
What is the use of Commarea?
What is CICS control table PCT?
Program Control Table. The Program Control Table (PCT) defines the local transaction programs (TPs) to CICS. Each TP is specified using a DFHPCT definition that includes the name by which the TP is invoked (the TRANSID field) and the corresponding load module name from the CICS library of TPs.
What is XCTL in CICS?
Description. XCTL transfers control from one application program to another at the same logical level. The program from which control is transferred is released. If the program to which control is transferred is not already in main storage, it is loaded. This command operates in the current application context.
The EXEC CICS LINK command can be helpful in reducing the amount of code that you need to write. The EXEC CICS XCTL command is helpful when you have a condition in which the calling function does not need to receive control back after the invoked function is called.
What is Nohandle in CICS?
NOHANDLE suspends the error handling that was specified in previous EXEC CICS® HANDLE CONDITION commands (or with the CICS defaults) but only for the command on which you put the NOHANDLE. It has no effect on later commands, or on the error handling that other HANDLE commands set.
Is there a maximum size for a commarea?
CICS Application Programming Guide specifies that “The length of a COMMAREA on a RETURN command can vary from transaction to transaction, up to a theoretical upper limit of 32,763 bytes. However to be safe, you should not exceed 24KB?, because of a number of factors that can reduce the limit from the theoretical maximum.?
How many bytes can be passed through commarea?
Commarea passed with XCTL & LINK can be 32,673 bytes at the max. (4 bytes less than 32K – 1. However, it is 24K on RETURN command. CICS Application Programming Guide specifies that “The length of a COMMAREA on a RETURN command can vary from transaction to transaction, up to a theoretical upper limit of 32,763 bytes.
How many kB can be passed to a CICS command?
In COBOL, C, C++, PL/I, and assembler language, the translator deals with lengths. See Application development reference for programming information, including details of when you need to specify the LENGTH option. Where possible, do not let the length specified in CICS command options exceed 24 KB.
What is the maximum size of a dfhcommarea?
The maximum size of DFHCOMMAREA is 32K, however it is recommended (by IBM) that it not exceed 24K. Actually, with the news CICSTS 2.1 or above, there is no specific limit to the size of DFHCOMMAREA.