Function lock_remove

isolate.c:227–237

}

static void
lock_remove(void)
{
  // To avoid race conditions, we must never unlink lock files.
  // We just truncate them to zero length.
  assert(lock_fd >= 0);
  if (ftruncate(lock_fd, 0) < 0)
    die("Cannot truncate lock file: %m");
  close(lock_fd);
  lock_fd = -1;
}

/*** Messages and exits ***/