mef@remus.rutgers.edu (Marc E. Fiuczynski) (12/10/90)
Does anyone know have a man page on plock() funciton?
As far as I know it is supposed to give a process very
highpriority!!! I remember seeing it used on a 3B2 running
SVR3.2.1.
--
================================================================================
Marc Fiuczynski | mef@remus.rutgers.edu
| mef@klinzhai.rutgers.edu
Rpo 5814, Po Box 5063 |
New Brunswick, NJ 08903 | Tel.: (908)/878-9388
================================================================================james@dlss2.UUCP (James Cummings) (12/10/90)
SYSNOPIS #include <sys/lock.h> int plock(op) int op; DESCRIPTION plock allows the calling process to lock its text segment (text lock), its data segment (datalock), or both its text and data segments (process lock) into memory. Locked segments are immune to all routine swapping. plock also allows these segments to be unlocked. The effective user ID of the calling process must be super-user to use this call Op specifies the following: PROCLOCK - process lock TXTLOCK - text lock DATLOCK - data lock UNLOCK - remove locks Hope that helps.
craig@attcan.UUCP (Craig Campbell) (12/11/90)
In article <Dec.9.18.47.25.1990.17008@remus.rutgers.edu> mef@remus.rutgers.edu (Marc E. Fiuczynski) writes: >Does anyone know have a man page on plock() funciton? >As far as I know it is supposed to give a process very >highpriority!!! I remember seeing it used on a 3B2 running >SVR3.2.1. >-- >================================================================================ >Marc Fiuczynski | mef@remus.rutgers.edu > | mef@klinzhai.rutgers.edu >Rpo 5814, Po Box 5063 | >New Brunswick, NJ 08903 | Tel.: (908)/878-9388 >================================================================================ plock(2) - lock process, text, or data in memory #include <sys/lock.h> int plock(op) int op; Description plock allows the calling process to lock its text segment (text locks), its data segment (data lock), or both its text and data segment (process lock) into memory. Locked segments are immune to all routine swapping. plock also allows these segments to be unlocked. The effective user iID of the calling process must be super-user to use this call. op specifies the following: PROCLOC lock text and data segments into memory (process lock) TXTLOCK lock text segment into memory (text lock) DATLOCK lock data segment into memory (data lock) UNLOCK removes locks. I'm tired of typing...... stuff omitted....... For return codes and reasons for failures, see the Programmer's Reference Manual, section 2. craig
jgo@mcgp1.UUCP (John Opalko, N7KBT) (12/11/90)
The plock() system call doesn't give your process a high priority, but it
does prevent it from being swapped out.
SYNOPSIS
#include <sys/lock.h>
int plock (op)
int op;
Op specifies the following:
PROCLOCK - lock text and data segments into memory (process lock)
TXTLOCK - lock text segment into memory (text lock)
DATLOCK - lock data segment into memory (data lock)
UNLOCK - remove locks
As you might suspect, you have to be root to use this hummer and, as usual,
it returns 0 if successful and -1 if not, with the obligatory setting
of errno.
Hope this helps.