MAGIC_WAIT_FD
if (!ASYNC_WAIT_CTX_set_wait_fd(waitctx, waitctx, MAGIC_WAIT_FD, NULL, NULL))
|| fd != MAGIC_WAIT_FD
|| fd != MAGIC_WAIT_FD
|| delfd != MAGIC_WAIT_FD
if (!ASYNC_WAIT_CTX_set_wait_fd(waitctx, waitctx, MAGIC_WAIT_FD, NULL, NULL))