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/* SPDX-License-Identifier: MIT */
/*
* Description: test use of eventfds with multiple rings
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <poll.h>
#include <sys/eventfd.h>
#include "liburing.h"
#include "helpers.h"
int main(int argc, char *argv[])
{
struct io_uring_params p = {};
struct io_uring ring1, ring2;
struct io_uring_sqe *sqe;
int ret, evfd1, evfd2;
if (argc > 1)
return T_EXIT_SKIP;
ret = io_uring_queue_init_params(8, &ring1, &p);
if (ret) {
fprintf(stderr, "ring setup failed: %d\n", ret);
return T_EXIT_FAIL;
}
if (!(p.features & IORING_FEAT_CUR_PERSONALITY)) {
fprintf(stdout, "Skipping\n");
return T_EXIT_SKIP;
}
ret = io_uring_queue_init(8, &ring2, 0);
if (ret) {
fprintf(stderr, "ring setup failed: %d\n", ret);
return T_EXIT_FAIL;
}
evfd1 = eventfd(0, EFD_CLOEXEC);
if (evfd1 < 0) {
perror("eventfd");
return T_EXIT_FAIL;
}
evfd2 = eventfd(0, EFD_CLOEXEC);
if (evfd2 < 0) {
perror("eventfd");
return T_EXIT_FAIL;
}
ret = io_uring_register_eventfd(&ring1, evfd1);
if (ret) {
fprintf(stderr, "failed to register evfd: %d\n", ret);
return T_EXIT_FAIL;
}
ret = io_uring_register_eventfd(&ring2, evfd2);
if (ret) {
fprintf(stderr, "failed to register evfd: %d\n", ret);
return T_EXIT_FAIL;
}
sqe = io_uring_get_sqe(&ring1);
io_uring_prep_poll_add(sqe, evfd2, POLLIN);
sqe->user_data = 1;
sqe = io_uring_get_sqe(&ring2);
io_uring_prep_poll_add(sqe, evfd1, POLLIN);
sqe->user_data = 1;
ret = io_uring_submit(&ring1);
if (ret != 1) {
fprintf(stderr, "submit: %d\n", ret);
return T_EXIT_FAIL;
}
ret = io_uring_submit(&ring2);
if (ret != 1) {
fprintf(stderr, "submit: %d\n", ret);
return T_EXIT_FAIL;
}
sqe = io_uring_get_sqe(&ring1);
io_uring_prep_nop(sqe);
sqe->user_data = 3;
ret = io_uring_submit(&ring1);
if (ret != 1) {
fprintf(stderr, "submit: %d\n", ret);
return T_EXIT_FAIL;
}
return T_EXIT_PASS;
}
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