PTHREAD_ATTR(3) | Library Functions Manual | PTHREAD_ATTR(3) |
pthread_attr_getschedparam
,
pthread_attr_setschedparam
—
thread attribute operations
#include
<pthread.h>
int
pthread_attr_getschedparam
(const
pthread_attr_t *restrict attr, struct sched_param
*restrict param);
int
pthread_attr_setschedparam
(pthread_attr_t
*restrict attr, const struct sched_param *restrict
param);
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.
pthread_attr_getschedparam
()
and
pthread_attr_setschedparam
()
get and set the scheduling parameters within the attr
argument. See /usr/include/sched.h
for the
definition of struct sched_param. The
sched_priority field of struct
sched_param must be within the range returned by the
sched_get_priority_min(2)
and
sched_get_priority_max(2)
system calls.
If successful, these functions return 0. Otherwise, an error
number is returned to indicate the error.
pthread_attr_getschedparam
(), on success, will copy
the value of the thread's scheduling parameter attribute to the location
pointed to by the second function parameter.
pthread_attr_getschedparam
() will fail
if:
EINVAL
]pthread_attr_setschedparam
() will fail
if:
pthread_create(3), pthread_attr_init(3), pthread_attr_setinheritsched(3)
pthread_attr_setschedparam
(),
pthread_attr_getschedparam
() conform to
Version 2 of the Single UNIX Specification
(“SUSv2”)
December 31, 2007 | macOS 14.6 |