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GETPRIORITY(2)                System Calls Manual               GETPRIORITY(2)

NAME
       getpriority, setpriority - get and set scheduling priority

SYNOPSIS
       #include <sys/resource.h>

       int getpriority(int which, int who)
       int setpriority(int which, int who, int prio)

DESCRIPTION
       Getpriority  returns  the  scheduling  priority of the process, process
       group, or user referred to in who. Which of the three is  indicated  in
       which,  by  PRIO_PROCESS,  PRIO_PGRP  and  PRIO_USER, respectively.  In
       MINIX 3, currently only PRIO_PROCESS is implemented.

       The range of the returned  value  is  between  PRIO_MIN  and  PRIO_MAX,
       currently  between  -20  and  20,  and is the so-called nice value of a
       process. The higher the nice value, the less favourable the  scheduling
       priority.

       Setpriority  sets  the  priority  indicated  by  who and which to prio.
       prio, which is the nice value, may only be lowered by the super-user.

RETURN VALUES
       These functions both return -1 on failure, and set errno in this  case.
       Because  getpriority  can  return -1 as the real nice value, the caller
       has to reset errno and check errno afterwards to distinguish between an
       error condition and a negative nice value.

SEE ALSO
       nice(1)

AUTHOR
       Ben Gras <beng@few.vu.nl>

4th Berkeley Distribution         Jul 1, 2005                   GETPRIORITY(2)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | AUTHOR