Unit 'BaseUnix'	Package
[Overview][Constants][Types][Procedures and functions][Index]	[#rtl]

fpSetPriority

Set process priority.

Declaration

Source position: bunxh.inc line 111

function fpSetPriority(

Which: cint;

Who: cint;

What: cint

):cint;

Description

fpSetPriority sets the priority with which a process is running. Which process(es) is determined by the Which and Who variables. Which can be one of the predefined constants:

Prio_Process: Who is interpreted as process ID
Prio_PGrp: Who is interpreted as process group ID
Prio_User: Who is interpreted as user ID

Prio is a value in the range -20 to 20.

For an example, see FpNice.

The function returns zero on success, -1 on failure

Errors

Extended error information is returned by the FpGetErrno function.

sys_esrch: No process found using which and who.
sys_einval: Which was not one of Prio_Process, Prio_Grp or Prio_User.
sys_eperm: A process was found, but neither its effective or real user ID match the effective user ID of the caller.
sys_eacces: A non-superuser tried to a priority increase.

FpGetPriority		Return process priority.
FpNice		Set process priority.

fpSetPriority

Declaration

Description

Errors

See also