sched_get_priority_max and sched_get_priority_min Subroutine
Purpose
Retrieves priority limits.
Library
Standard C Library (libc.a)
Syntax
#include <sched.h>
int sched_get_priority_max (policy)
int policy;
int sched_get_priority_min (policy)
int policy;Description
The sched_get_priority_max and sched_get_priority_min subroutines return the appropriate maximum or minimum, respectively, for the scheduling policy specified by the policy parameter.
The value of the policy parameter is one of the scheduling policy values defined in the sched.h header file.
Parameters
| Item | Description |
|---|---|
| policy | Specifies the scheduling policy. |
Return Values
If successful, the sched_get_priority_max and sched_get_priority_min subroutines return the appropriate maximum or minimum values, respectively. If unsuccessful, they return -1 and set errno to indicate the error.
Error Codes
The sched_get_priority_max and sched_get_priority_min subroutines
fail if:
| Item | Description |
|---|---|
| EINVAL | The value of the policy parameter does not represent a defined scheduling policy. |
| ENOTSUP | This interface does not support processes capable of checkpoint. |