====== LOCK.RECORD ======

==== Purpose ====

Used to lock records or files.

==== Arguments ====

^Argument^Input/Output^Value^
|CODE|Input|5|
| |Output|unchanged|
|BFS|Input|BFS List|
| |Output|unchanged|
|HANDLE|Input|File Handle|
| |Output|unchanged|
|NAME|Input|Record Key, if a record is being locked; NULL if a file is being locked|
| |Output|unchanged|
|FMC|Input|Lock Type|
| |Output|unchanged|
|RECORD|Input|null|
| |Output|Lock semaphore|
|STATUS|Input|unassigned|
| |Output|TRUE$ if lock successful|

==== Note ====
The MFS should not alter the semaphore returned in the RECORD argument.  This information is used by the system to set lock information stored internally in the system.

==== Called by ====

BASIC+ [[lock|LOCK statement]]