SNAX/HLS Diagnosis and Support Manual

Command Dictionary

Using SNAX/HLS Trace Analysis Program

2–16 104706 Tandem Computers Incorporated

FROM Command The FROM command directs HLSTAP to open a trace file for analysis. If a trace file is

currently open, HLSTAP closes the file prior to opening the new trace file.

FROM

file-name

is the name of a trace file produced from a SNAX/HLS trace that was started and

stopped earlier.

Considerations

The file specified in this command is opened by using the call

ALLOCATESEGMENT. The file security of the trace file must allow read and

write access to the process owner of HLSTAP (even though HLSTAP does not

modify the file). Failure to provide appropriate security clearance will result in

file-system error 48.

The

file-name

is qualified by using the current command defaults.

Examples

This command qualifies the file name with the current system command default then

opens the file for trace analysis:

@FROM $TEXAS.HLSTRACE.TRC001

This command qualifies the file name with the current system, subvolume, and

volume default, then opens it for trace analysis:

@FROM TRC002