sched_get_priority_max

, sched_get_priority_min

- get scheduling parameter limits

Synopsis

cc [ flag... ] file... -lrt [ library... ]
#include <sched.h>

int sched_get_priority_max(int policy);

int sched_get_priority_min(int policy);

Description

The sched_get_priority_max() and sched_get_priority_min() functions return the appropriate maximum or minimum, respectfully, for the scheduling policy specified by policy.

The value of policy is one of the scheduling policy values defined in <sched.h>.

Return Values

If successful, the sched_get_priority_max() and sched_get_priority_min() functions return the appropriate maximum or minimum values, respectively. If unsuccessful, they return -1 and set errno to indicate the error.

Errors

The sched_get_priority_max() and sched_get_priority_min() functions will fail if:

EINVAL

The value of the policy parameter does not represent a defined scheduling policy.

ENOSYS

The sched_get_priority_max(), sched_get_priority_min() and sched_rr_get_interval(3RT) functions are not supported by the system.

Attributes

See attributes(5) for descriptions of the following attributes:

See Also

librt(3LIB), sched.h(3HEAD), sched_getparam(3RT), sched_setparam(3RT), sched_getscheduler(3RT), sched_rr_get_interval(3RT), sched_setscheduler(3RT), time.h(3HEAD), attributes(5)

Notes

Solaris 2.6 was the first release to support libposix4/librt. Prior to this release, this function always returned -1 and set errno to ENOSYS.