fusl/src/thread/thrd_sleep.c

#include <threads.h>
#include <errno.h>
#include "syscall.h"

int thrd_sleep(const struct timespec* req, struct timespec* rem) {
  int ret = __syscall(SYS_nanosleep, req, rem);
  switch (ret) {
    case 0:
      return 0;
    case -EINTR:
      return -1; /* value specified by C11 */
    default:
      return -2;
  }
}