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/* SPDX-License-Identifier: MIT */
/*
* Test that we exit properly with SQPOLL and having a request that
* adds a circular reference to the ring itself.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <poll.h>
#include "liburing.h"
static unsigned long long mtime_since(const struct timeval *s,
const struct timeval *e)
{
long long sec, usec;
sec = e->tv_sec - s->tv_sec;
usec = (e->tv_usec - s->tv_usec);
if (sec > 0 && usec < 0) {
sec--;
usec += 1000000;
}
sec *= 1000;
usec /= 1000;
return sec + usec;
}
static unsigned long long mtime_since_now(struct timeval *tv)
{
struct timeval end;
gettimeofday(&end, NULL);
return mtime_since(tv, &end);
}
int main(int argc, char *argv[])
{
struct io_uring_params p = {};
struct timeval tv;
struct io_uring ring;
struct io_uring_sqe *sqe;
int ret;
if (argc > 1)
return 0;
p.flags = IORING_SETUP_SQPOLL;
p.sq_thread_idle = 100;
ret = io_uring_queue_init_params(1, &ring, &p);
if (ret) {
if (geteuid()) {
printf("%s: skipped, not root\n", argv[0]);
return 0;
}
fprintf(stderr, "queue_init=%d\n", ret);
return 1;
}
if (!(p.features & IORING_FEAT_SQPOLL_NONFIXED)) {
fprintf(stdout, "Skipping\n");
return 0;
}
sqe = io_uring_get_sqe(&ring);
io_uring_prep_poll_add(sqe, ring.ring_fd, POLLIN);
io_uring_submit(&ring);
gettimeofday(&tv, NULL);
do {
usleep(1000);
} while (mtime_since_now(&tv) < 1000);
return 0;
}
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