#include <assert.h>
#include <time.h>
#include <zircon/compiler.h>
#include <zircon/syscalls.h>

#include "time_conversion.h"

int nanosleep(const struct timespec* req, struct timespec* rem) {
  // For now, Zircon only provides an uninterruptible nanosleep. If
  // we ever introduce an asynchronous mechanism that would require
  // some EINTR-like logic, then we will also want a nanosleep call
  // which reports back how much time is remaining. Until then,
  // always report back 0 timeout remaining.

  __UNUSED int ret = _zx_nanosleep(__duration_timespec_to_deadline(*req));
  assert(ret == 0);
  if (rem) {
    *rem = (struct timespec){
        .tv_sec = 0,
        .tv_nsec = 0,
    };
  }
  return 0;
}