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#include "../config-host.h"
/* SPDX-License-Identifier: MIT */
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <assert.h>
#include <pthread.h>
#include <sys/socket.h>
#include <netinet/tcp.h>
#include <netinet/in.h>
#include <poll.h>
#include <arpa/inet.h>
#include "liburing.h"
#include "helpers.h"
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
static int recv_thread_ready = 0;
static int recv_thread_done = 0;
static void signal_var(int *var)
{
pthread_mutex_lock(&mutex);
*var = 1;
pthread_cond_signal(&cond);
pthread_mutex_unlock(&mutex);
}
static void wait_for_var(int *var)
{
pthread_mutex_lock(&mutex);
while (!*var)
pthread_cond_wait(&cond, &mutex);
pthread_mutex_unlock(&mutex);
}
struct data {
unsigned expected[2];
unsigned just_positive[2];
unsigned long timeout;
unsigned short port;
unsigned int addr;
int stop;
};
static void *send_thread(void *arg)
{
struct data *data = arg;
int ret;
wait_for_var(&recv_thread_ready);
if (data->stop)
return NULL;
int s0 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
assert(s0 != -1);
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = data->port;
addr.sin_addr.s_addr = data->addr;
ret = connect(s0, (struct sockaddr*)&addr, sizeof(addr));
assert(ret != -1);
wait_for_var(&recv_thread_done);
close(s0);
return NULL;
}
void *recv_thread(void *arg)
{
struct data *data = arg;
struct io_uring ring;
int i, ret;
ret = io_uring_queue_init(8, &ring, 0);
assert(ret == 0);
int s0 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
assert(s0 != -1);
int32_t val = 1;
ret = setsockopt(s0, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val));
assert(ret != -1);
ret = setsockopt(s0, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
assert(ret != -1);
struct sockaddr_in addr;
addr.sin_family = AF_INET;
data->addr = inet_addr("127.0.0.1");
addr.sin_addr.s_addr = data->addr;
i = 0;
do {
data->port = htons(1025 + (rand() % 64510));
addr.sin_port = data->port;
if (bind(s0, (struct sockaddr*)&addr, sizeof(addr)) != -1)
break;
} while (++i < 100);
if (i >= 100) {
printf("Can't find good port, skipped\n");
data->stop = 1;
signal_var(&recv_thread_ready);
goto out;
}
ret = listen(s0, 128);
assert(ret != -1);
signal_var(&recv_thread_ready);
struct io_uring_sqe *sqe;
sqe = io_uring_get_sqe(&ring);
assert(sqe != NULL);
io_uring_prep_accept(sqe, s0, NULL, NULL, 0);
sqe->flags |= IOSQE_IO_LINK;
sqe->user_data = 1;
sqe = io_uring_get_sqe(&ring);
assert(sqe != NULL);
struct __kernel_timespec ts;
ts.tv_sec = data->timeout / 1000000000;
ts.tv_nsec = data->timeout % 1000000000;
io_uring_prep_link_timeout(sqe, &ts, 0);
sqe->user_data = 2;
ret = io_uring_submit(&ring);
assert(ret == 2);
for (i = 0; i < 2; i++) {
struct io_uring_cqe *cqe;
int idx;
if (io_uring_wait_cqe(&ring, &cqe)) {
fprintf(stderr, "wait cqe failed\n");
goto err;
}
idx = cqe->user_data - 1;
if (cqe->res != data->expected[idx]) {
if (cqe->res > 0 && data->just_positive[idx])
goto ok;
if (cqe->res == -EBADF) {
fprintf(stdout, "Accept not supported, skipping\n");
data->stop = 1;
goto out;
}
fprintf(stderr, "cqe %" PRIu64 " got %d, wanted %d\n",
(uint64_t) cqe->user_data, cqe->res,
data->expected[idx]);
goto err;
}
ok:
if (cqe->user_data == 1 && cqe->res > 0)
close(cqe->res);
io_uring_cqe_seen(&ring, cqe);
}
signal_var(&recv_thread_done);
out:
close(s0);
return NULL;
err:
close(s0);
return (void *) 1;
}
static int test_accept_timeout(int do_connect, unsigned long timeout)
{
struct io_uring ring;
struct io_uring_params p = {};
pthread_t t1, t2;
struct data d;
void *tret;
int ret, fast_poll;
ret = io_uring_queue_init_params(1, &ring, &p);
if (ret) {
fprintf(stderr, "queue_init: %d\n", ret);
return 1;
};
fast_poll = (p.features & IORING_FEAT_FAST_POLL) != 0;
io_uring_queue_exit(&ring);
recv_thread_ready = 0;
recv_thread_done = 0;
memset(&d, 0, sizeof(d));
d.timeout = timeout;
if (!do_connect) {
if (fast_poll) {
d.expected[0] = -ECANCELED;
d.expected[1] = -ETIME;
} else {
d.expected[0] = -EINTR;
d.expected[1] = -EALREADY;
}
} else {
d.expected[0] = -1U;
d.just_positive[0] = 1;
d.expected[1] = -ECANCELED;
}
pthread_create(&t1, NULL, recv_thread, &d);
if (do_connect)
pthread_create(&t2, NULL, send_thread, &d);
pthread_join(t1, &tret);
if (tret)
ret++;
if (do_connect) {
pthread_join(t2, &tret);
if (tret)
ret++;
}
return ret;
}
int main(int argc, char *argv[])
{
if (argc > 1)
return T_EXIT_SKIP;
if (test_accept_timeout(0, 200000000)) {
fprintf(stderr, "accept timeout 0 failed\n");
return T_EXIT_FAIL;
}
if (test_accept_timeout(1, 1000000000)) {
fprintf(stderr, "accept and connect timeout 0 failed\n");
return T_EXIT_FAIL;
}
return T_EXIT_PASS;
}
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