GDSX Manual

Service Routines

Extended General Device Support (GDSX) Manual–134303

8-19

^CLOSE

•

If the checkpoint buffer overflows, the backup process is deleted. To prevent this,

ensure that the MAXCPSIZE configuration parameter is large enough. The default

size is 4096 words. (For restrictions imposed by MAXCPSIZE and TASKCPSIZE,

see “MAXCPSIZE” on page 2-57 and “TASKCPSIZE” on page 2-70.)

^CLOSE

This procedure closes an open file. ^CLOSE can be called whether USCODE is

converted or unconverted. This procedure is a waited operation.

The syntax, condition code settings, and considerations regarding this procedure are the

same as given for the counterpart in the Guardian Procedure Calls Reference Manual.

^CONTROL

This procedure performs device-dependent I/O operations.

The syntax, condition code settings, and considerations regarding this procedure are the

same as the counterpart in the Guardian Procedure Calls Reference Manual.

DEALLOCATEIOCB

This procedure deallocates an IOCB when an I/O request is finished. This procedure

also clears the contents of the IOCB.

iocb input

INT .EXT:ref

iocb is a pointer to the IOCB to be deallocated.

Consideration

•

See “Transaction Flow” on page 7-7 for an explanation of how

DEALLOCATEIOCB is used in a LINE^HANDLER.

•

See the description of the ALLOCATEIOCB procedure for an example of usage of

DEALLOCATEIOCB.

^DELAY

This procedure permits a task to suspend itself for a timed interval.

Except for the following considerations, the syntax, condition code settings, and

considerations regarding this procedure are the same as the counterpart in the Guardian

Procedure Calls Reference Manual.

CALL DEALLOCATEIOCB ( iocb ); !