mailing list of musl libc

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 #include "pthread_impl.h"
#include "lock.h"

int pthread_getschedparam(pthread_t t, int *restrict policy, struct sched_param *restrict param)
{
	int r;
	LOCK(t->killlock);
	if (!t->tid) {
		r = ESRCH;
	} else {
		r = -__syscall(SYS_sched_getparam, t->tid, param);
		if (!r) {
                       r = -__syscall(SYS_sched_getscheduler, t->tid);
                       if (r <= 0) {
                               *policy = -r;
                               r = 0;
                       }
		}
	}
	UNLOCK(t->killlock);
	return r;
}