third_party/ulib/musl/src/unistd/usleep.c

#define _GNU_SOURCE
#include <time.h>
#include <unistd.h>

int usleep(unsigned useconds) {
    struct timespec tv = {.tv_sec = useconds / 1000000, .tv_nsec = (useconds % 1000000) * 1000};
    return nanosleep(&tv, &tv);
}