PTHREAD_ATTR_GETSCHEDPARAM(3C) Standard C Library Functions

NAME

pthread_attr_getschedparam, pthread_attr_setschedparam - get or set
schedparam attribute

SYNOPSIS

cc -mt [ flag... ] file... -lpthread [ library... ]
#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);

DESCRIPTION

The functions pthread_attr_setschedparam() and
pthread_attr_getschedparam(), respectively, set and get the scheduling
parameter attributes in the attr argument. The contents of the param
structure are defined in <sched.h>. The only required member of param is
sched_priority.

RETURN VALUES

If successful, the pthread_attr_setschedparam() and
pthread_attr_getschedparam() functions return 0. Otherwise, an error
number is returned to indicate the error.

ERRORS

The pthread_attr_setschedparam() function may fail if:

EINVAL
attr is invalid.


The pthread_attr_getschedparam() function may fail if:

EINVAL
attr or param is invalid.

USAGE

After these attributes have been set, a thread can be created with the
specified attributes using pthread_create(). Using these routines does
not affect the current running thread.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------+
|Interface Stability | Committed |
+--------------------+-------------------+
|MT-Level | MT-Safe |
+--------------------+-------------------+
|Standard | See standards(7). |
+--------------------+-------------------+

SEE ALSO

pthread_attr_init(3C), pthread_attr_setinheritsched(3C),
pthread_attr_setschedpolicy(3C), pthread_attr_setscope(3C),
pthread_create(3C), pthread_setschedparam(3C), attributes(7),
standards(7)

April 1, 2008 PTHREAD_ATTR_GETSCHEDPARAM(3C)