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pthread_attr_getschedparam, pthread_attr_setschedparam - get or set schedparam attribute

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);

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.

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

The pthread_attr_setschedparam() function may fail if: EINVAL

The pthread_attr_getschedparam() function may fail if: EINVAL

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.

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

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Committed

MT-Level MT-Safe

Standard See standards(7).

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)