LOCK explicitly locks a member against modification. ED specifies the member to be locked and LD specifies the library containing this member. The complete type, name and version of the member must be specified.
The member remains locked until UNLOCK or END is entered or the program is terminated. The lockout applies in memory only.
Call parameters
The parameter structures must be given in the following sequence in the subroutine call.
Parameter | Field | Meaning |
CB | SCBVERSION FUNCTION SUBCODE ACC LD-RETURN | Function control block Interface version Function code X’0C’ Subcode currently not used: UNUSE Subroutine access identification Full DMS file name in LD |
LD | PASSWORD LINK MAX-NAME-LEN NAME | Library descriptor Password as per PASSWORD command Link name Maximum length of library name Library name |
ED | TYP NAME VERSION | Member descriptor Member type Member name Member version |
Return parameters
Parameter | Field | Meaning |
CB | RETURNCODE LMS-MSG DMS-MSG PLAM-MSG | Function control block Return code LMS message code DMS message code PLAM message code |
LD | NAME | Library descriptor Full DMS file name of library (dependent on LD-RETURN field of CB) |
ED | VERSION | Member descriptor Member version (if call used *HIGH) |