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