Function completion

examples/napi-busy-poll-server.c:221–251

}

static void completion(struct ctx *ctx, struct io_uring_cqe *cqe)
{
	char type;
	int  fd;
	int  res = cqe->res;

	decodeUserData(cqe->user_data, &type, &fd);
	if (res < 0) {
		fprintf(stderr, "unexpected %s failure: (%d) %s\n",
			opTypeToStr(type), -res, strerror(-res));
		abort();
	}

	switch (type) {
	case IOURING_SENDMSG:
		receivePing(ctx);
		--ctx->num_pings;
		break;
	case IOURING_RECVMSG:
		ctx->iov.iov_len = res;
		sendPing(ctx);
		if (!ctx->napi_check)
			reportNapi(ctx);
		break;
	default:
		fprintf(stderr, "unexpected %s completion\n",
			opTypeToStr(type));
		abort();
		break;
	}
}

int main(int argc, char *argv[])
{