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/* SPDX-License-Identifier: MIT */
#include <netdb.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include "liburing.h"
#include "helpers.h"
#include "../src/syscall.h"
static struct io_uring io_uring;
static int sys_io_uring_enter(const int fd, const unsigned to_submit,
const unsigned min_complete,
const unsigned flags, sigset_t * const sig)
{
return __sys_io_uring_enter(fd, to_submit, min_complete, flags, sig);
}
static int submit_sqe(void)
{
struct io_uring_sq *sq = &io_uring.sq;
const unsigned tail = *sq->ktail;
sq->array[tail & sq->ring_mask] = 0;
io_uring_smp_store_release(sq->ktail, tail + 1);
return sys_io_uring_enter(io_uring.ring_fd, 1, 0, 0, NULL);
}
int main(int argc, char **argv)
{
struct addrinfo *addr_info_list = NULL;
struct addrinfo *ai, *addr_info = NULL;
struct io_uring_params params;
struct io_uring_sqe *sqe;
struct addrinfo hints;
struct sockaddr sa;
socklen_t sa_size = sizeof(sa);
int ret, listen_fd, connect_fd, val, i;
if (argc > 1)
return T_EXIT_SKIP;
memset(¶ms, 0, sizeof(params));
ret = t_io_uring_init_sqarray(4, &io_uring, ¶ms);
if (ret) {
fprintf(stderr, "io_uring_init_failed: %d\n", ret);
return T_EXIT_FAIL;
}
if (!(params.features & IORING_FEAT_SUBMIT_STABLE)) {
fprintf(stdout, "FEAT_SUBMIT_STABLE not there, skipping\n");
return T_EXIT_SKIP;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV;
ret = getaddrinfo(NULL, "12345", &hints, &addr_info_list);
if (ret < 0) {
perror("getaddrinfo");
return T_EXIT_FAIL;
}
for (ai = addr_info_list; ai; ai = ai->ai_next) {
if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) {
addr_info = ai;
break;
}
}
if (!addr_info) {
fprintf(stderr, "addrinfo not found\n");
return T_EXIT_FAIL;
}
sqe = &io_uring.sq.sqes[0];
listen_fd = -1;
ret = socket(addr_info->ai_family, SOCK_STREAM,
addr_info->ai_protocol);
if (ret < 0) {
perror("socket");
return T_EXIT_FAIL;
}
listen_fd = ret;
val = 1;
setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(int));
setsockopt(listen_fd, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(int));
ret = bind(listen_fd, addr_info->ai_addr, addr_info->ai_addrlen);
if (ret < 0) {
perror("bind");
return T_EXIT_FAIL;
}
ret = listen(listen_fd, SOMAXCONN);
if (ret < 0) {
perror("listen");
return T_EXIT_FAIL;
}
memset(&sa, 0, sizeof(sa));
io_uring_prep_accept(sqe, listen_fd, &sa, &sa_size, 0);
sqe->user_data = 1;
ret = submit_sqe();
if (ret != 1) {
fprintf(stderr, "submit failed: %d\n", ret);
return T_EXIT_FAIL;
}
connect_fd = -1;
ret = socket(addr_info->ai_family, SOCK_STREAM, addr_info->ai_protocol);
if (ret < 0) {
perror("socket");
return T_EXIT_FAIL;
}
connect_fd = ret;
io_uring_prep_connect(sqe, connect_fd, addr_info->ai_addr,
addr_info->ai_addrlen);
sqe->user_data = 2;
ret = submit_sqe();
if (ret != 1) {
fprintf(stderr, "submit failed: %d\n", ret);
return T_EXIT_FAIL;
}
for (i = 0; i < 2; i++) {
struct io_uring_cqe *cqe = NULL;
ret = io_uring_wait_cqe(&io_uring, &cqe);
if (ret) {
fprintf(stderr, "io_uring_wait_cqe: %d\n", ret);
return T_EXIT_FAIL;
}
switch (cqe->user_data) {
case 1:
if (cqe->res < 0) {
fprintf(stderr, "accept failed: %d\n", cqe->res);
return T_EXIT_FAIL;
}
break;
case 2:
if (cqe->res) {
fprintf(stderr, "connect failed: %d\n", cqe->res);
return T_EXIT_FAIL;
}
break;
}
io_uring_cq_advance(&io_uring, 1);
}
freeaddrinfo(addr_info_list);
io_uring_queue_exit(&io_uring);
return T_EXIT_PASS;
}
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