Use pthread_attr_getschedpolicy(3C) to retrieve the scheduling policy.
int pthread_attr_getschedpolicy(pthread_attr_t *restrict tattr, int *restrict policy);
#include <pthread.h> pthread_attr_t tattr; int policy; int ret; /* get scheduling policy of thread */ ret = pthread_attr_getschedpolicy (&tattr, &policy);
pthread_attr_getschedpolicy() returns zero after completing successfully. Any other return value indicates that an error occurred. If the following condition occurs, the function fails and returns the corresponding value.
EINVAL
Description:The parameter policy is NULL or tattr is invalid.