PTHREAD_ATTR(3) | Library Functions Manual | PTHREAD_ATTR(3) |
pthread_attr_getschedpolicy
,
pthread_attr_setschedpolicy
—
thread attribute operations
#include
<pthread.h>
int
pthread_attr_getschedpolicy
(const
pthread_attr_t *restrict attr, int *restrict
policy);
int
pthread_attr_setschedpolicy
(pthread_attr_t
*attr, int policy);
Thread attributes are used to specify parameters to
pthread_create
().
One attribute object can be used in multiple calls to
pthread_create
(), with or without modifications
between calls.
The functions
pthread_attr_setschedpolicy
()
and
pthread_attr_getschedpolicy
(),
set and get the attribute in the attr argument related
to the scheduling policy. The value for the aforementioned attribute can be
SCHED_FIFO, SCHED_RR and SCHED_OTHER.
If successful, these functions return 0. Otherwise, an error
number is returned to indicate the error.
pthread_attr_getschedpolicy
(), on success, will copy
the value of the thread's scheduling policy attribute to the location
pointed to by the second function parameter.
pthread_attr_getschedpolicy
() will fail
if:
EINVAL
]pthread_attr_setschedpolicy
() will fail
if:
pthread_create(3), pthread_attr_init(3), pthread_attr_setschedparam(3), pthread_attr_setinheritsched(3)
pthread_attr_setschedpolicy
(),
pthread_attr_getschedpolicy
() conform to
Version 2 of the Single UNIX Specification
(“SUSv2”)
December 31, 2007 | macOS 14.6 |