$UsStat
Retrieve user's statistics into string
Note: Most Sirius $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $UsStat function is the UserStatistics class.
This function allows retrieval of a specific user's statistics into a string.
The $UsStat function accepts two argument and returns a string made up of an error code and returned statistics.
Syntax
%string = $UsStat(stat_list, user_num)
Syntax terms
| %string | A string containing binary data, the first 4 bytes of which is an error code.
If the error code is negative, %string will only be 4 bytes long. If the error code is positive, it contains a number of milliseconds that the online has been up. This provides a convenient number for calculating rates for the statistics. If a positive error code is returned, the next 10 bytes contain the userid followed by 2 bytes containing the binary user number. This means that the actual data starts at offset 16 (byte number 17) in the result string. |
|---|---|
| stat_list | A string of blank-delimited words indicating the statistics to be returned. The length of each returned statistic is always a multiple of 4 bytes. This facilitates the use of $StatD with the returned string.
For more information about available statistics, see the SirMon User's Guide. |
| user_num | The user number of the user for which data is to be returned. |
Return codes
-5 - Required parameter not specified -12 - Invalid parameter (argument 2 > NUSERS) -13 - STAT not linked in -14 - Result string would be longer than 255 bytes -15 - User not logged on any more
Example
The following program displays some totals for user 0.
B %DATA IS STRING LEN 255 %DATA = $UsStat('CPU SVIO PNAME DKIO', 0) IF $LEN(%DATA) = 4 THEN PRINT '$USSTAT ERROR... RC = ' WITH - $UNBIN(%DATA) STOP END IF PRINT 'USERID = ' WITH $SUBSTR(%DATA, 5, 10) PRINT 'CPU = ' WITH $UNBIN( $SUBSTR(%DATA, 17, 4) ) PRINT 'SVIO = ' WITH $UNBIN( $SUBSTR(%DATA, 21, 4) ) PRINT 'PNAME = ' WITH SUBSTR(%DATA, 25, 16) ) PRINT 'DKIO = ' WITH $UNBIN( $SUBSTR(%DATA, 41, 4) ) END