Guardian Programming Reference Summary for pTAL and TAL

Procedure Calls Summary (A-C)
Guardian Programming Reference Summary for pTAL and TAL—522631-001
4-36
CONTROLBUF
Performs device-dependent I/O operations requiring a data buffer.
CONTROLMESSAGESYSTEM
Controls the maximum number of receive and send XLBs (extended memory control
blocks) used by a process.
CALL CONTROLBUF ( filenum
,operation
,buffer
,count
,[ count-transferred ]
,[ tag ] );
filenum, INT:value input
operation, INT:value input
buffer, INT:ref:* input
count, INT:value input
count-transferred, INT:ref:1 output
tag, INT(32):value input
> (CCL) An error occurred (call FILEINFO).
= (CCE) CONTROLBUF was successful.
> (CCG) For a process file, the process is not accepting CONTROLBUF system messages.
error := CONTROLMESSAGESYSTEM ( actioncode
,value );
error, INT:ref:1 output
0 Successful, no error
2Bad actioncode
21 Bad value
29 Missing parameter
actioncode, INT:value input
value, INT:value input