Y (Status Interrogate) System Command
You can use the Y (Status Interrogate) system command to display the client processes that are linked to a server library process. The following is an example of this display:
Status of Job 2375/2375 at 01:14:11 Program name: *SYSTEM/GENERALSUPPORT Codefile created: Monday, July 16, 2001 (20011197) at 14:55:19 Priority: 50 Origination: Unit 0 Stack State: Frozen, Permanent This library is being used by 8 programs: The MCP 9345: *SYSTEM/SDASUPPORT ON SYS38 4972: *SYSTEM/TCPHOSTSERVICES 4876: *SYSTEM/TCPIP/BNAV2/MANAGERS/12152 6551: *OBJECT/MAIL 2953: (SWDUNCAN)MCP/39/TRAP/MULTICOMP/AMLIP 2915: (JASMITH)MCP/MM17A ON MCPS 4983: *SYSTEM/PRINT/REMOTE/SERVER
Equivalent GETSTATUS Call
A DCALGOL program can obtain the same information by using the GETSTATUS call with type 6 (Mix Entries), subclass 1, and mask bits 18 and 34 set. Mask bit 18 returns the number of client processes linked to the library. Mask bit 34 returns a list of the client processes.

