Function receivePing

examples/napi-busy-poll-server.c:199–219

}

static void receivePing(struct ctx *ctx)
{
	struct io_uring_sqe *sqe;

	bzero(&ctx->msg, sizeof(struct msghdr));
	if (opt.ipv6) {
		ctx->msg.msg_name    = &ctx->saddr6;
		ctx->msg.msg_namelen = sizeof(struct sockaddr_in6);
	} else {
		ctx->msg.msg_name    = &ctx->saddr;
		ctx->msg.msg_namelen = sizeof(struct sockaddr_in);
	}
	ctx->iov.iov_base    = ctx->buffer;
	ctx->iov.iov_len     = MAXBUFLEN;
	ctx->msg.msg_iov     = &ctx->iov;
	ctx->msg.msg_iovlen  = 1;

	sqe = io_uring_get_sqe(&ctx->ring);
	io_uring_prep_recvmsg(sqe, ctx->sockfd, &ctx->msg, 0);
	sqe->user_data = encodeUserData(IOURING_RECVMSG, ctx->sockfd);
}

static void completion(struct ctx *ctx, struct io_uring_cqe *cqe)
{