NAME

lock − lock a process in primary memory

SYNOPSIS

lock(flag)

DESCRIPTION

If the flag argument is non-zero, the process executing this call will not be swapped except if it is required to grow.  If the argument is zero, the process is unlocked. This call may only be executed by the superuser.

DIAGNOSTICS

Lock will fail if:

[EPERM] The effective user ID is not the superuser. 

RESTRICTIONS

Locked processes interfere with the compaction of primary memory and can cause deadlock. This system call is not considered a permanent part of the system.

ASSEMBLER

(lock = 53.) 
sys lock; flag