Major call 2

Prior to Major Call 2, DFSORT sets the following fields in the EFS interface parameter list:

Action code=4
Major Call 2 is in effect.
Informational bit flag 4=0 and informational bit flag 5=0
No application is in effect.

EFSPGM requested the OPTION control statement. DFSORT makes a call to EFS program EFSPGM for each control statement requested; in this case, one. DFSORT also sets the following fields in the EFS interface parameter list:

Informational bit flag 0=0 and informational bit flag 1=1
The requested control statement came from SYSIN.
The original OPTION control statement, including all operands and corresponding subparameters
OPTION STOPAFT=30,DYNALLOC=3390
The length of the original OPTION control statement, including all operands and corresponding subparameters
The original control statement string is 31 bytes long.

DFSORT calls EFS program EFSPGM at Major Call 2, and EFSPGM sets the following fields in the EFS interface parameter list:

Informational bit flag 8=1
DFSORT must parse the control statement returned by EFSPGM.
The altered OPTION control statement, including all operands and subparameters
OPTION STOPAFT=30,DYNALLOC=3380,EQUALS
The length of the altered OPTION control statement, including all operands and subparameters
The altered control statement string is 38 bytes long.
Message list=0
EFSPGM has no messages for DFSORT to print to the message data set. General register 15 is set to zero.

Table 1 shows the original control statement sent to EFS program EFSPGM and the altered control statement returned by EFS program EFSPGM.

Table 1. Original and Altered Control Statements
Original and Altered Control StatementsControl statement format
Original OPTION control statement sent to EFSPGM OPTION STOPAFT=30,DYNALLOC=3390 Altered OPTION control statement returned by EFSPGM OPTION STOPAFT=30,DYNALLOC=3380,EQUALS Where: STOPAFT=30 is the original operand and value DYNALLOC=3380 is the original operand with a new value EQUALS option has been added