Manual Pages  — PTHREAD_SCHEDPARAM

pthread_setschedparam, pthread_getschedparam – thread scheduling parameter manipulation

LIBRARY SYNOPSIS DESCRIPTION RETURN VALUES ERRORS SEE ALSO STANDARDS

POSIX Threads Library (libpthread, -lpthread)

#include <pthread.h>

int
pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param);

int
pthread_getschedparam(pthread_t thread, int *restrict policy, struct sched_param *restrict param);

If successful, these functions return 0. Otherwise, an error number is returned to indicate the error.

The pthread_setschedparam() function will fail if:

[EINVAL]
	Invalid value for policy.
[ENOTSUP]
	Invalid value for scheduling parameters.
[EPERM]
	The calling thread does not have sufficient privilege to perform the operation.
[ESRCH]
	Non-existent thread thread.

The pthread_getschedparam() function will fail if:

[ESRCH]
	Non-existent thread thread.

The pthread_setschedparam() and pthread_getschedparam() functions conform to Version 2 of the Single UNIX Specification.