getpriority.2 (2010 09)

getpriority(2) getpriority(2)

ERRORS

If getpriority()

or setpriority()

fails, errno is set to one of the following values:

[EACCES] The calling process does not have access rights to change one or more of the indi-

cated processes. All processes for which access is allowed are still affected.

[EINVAL] which is not one of the choices listed above, or who is out of range.

[EPERM] The calling process attempted to change the priority of a process to a smaller prior-

ity value without having appropriate privileges.

[ESRCH] Processes indicated by which and who cannot be found.

WARNINGS

getpriority()

can return -1 both when it successfully ﬁnds a priority of

-1 and when it fails. To

determine whether a failure occurred, set

errno

to 0 before calling getpriority(), then examine

errno after the call returns.

AUTHOR

getpriority()

and setpriority()

were developed by the University of California, Berkeley.