例 3–2 は、親スレッドとは異なった優先順位を持つ子スレッドを生成する例です。
#include <pthread.h> #include <sched.h> pthread_attr_t tattr; pthread_t tid; int ret; int newprio = 20; sched_param param; /* initialized with default attributes */ ret = pthread_attr_init (&tattr); /* safe to get existing scheduling param */ ret = pthread_attr_getschedparam (&tattr, ¶m); /* set the priority; others are unchanged */ param.sched_priority = newprio; /* setting the new scheduling param */ ret = pthread_attr_setschedparam (&tattr, ¶m); /* specify explicit scheduling */ ret = pthread_attr_setinheritsched (&tattr, PTHREAD_EXPLICIT_SCHED); /* with new priority specified */ ret = pthread_create (&tid, &tattr, func, arg);