77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Description: test eventfd registration+unregistration
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*
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <sys/eventfd.h>
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#include "liburing.h"
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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 io_uring ring;
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int ret, evfd[2], i;
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if (argc > 1)
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return 0;
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ret = io_uring_queue_init_params(8, &ring, &p);
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if (ret) {
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fprintf(stderr, "ring setup failed: %d\n", ret);
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return 1;
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}
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evfd[0] = eventfd(0, EFD_CLOEXEC);
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evfd[1] = eventfd(0, EFD_CLOEXEC);
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if (evfd[0] < 0 || evfd[1] < 0) {
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perror("eventfd");
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return 1;
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}
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ret = io_uring_register_eventfd(&ring, evfd[0]);
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if (ret) {
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fprintf(stderr, "failed to register evfd: %d\n", ret);
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return 1;
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}
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/* Check that registrering again will get -EBUSY */
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ret = io_uring_register_eventfd(&ring, evfd[1]);
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if (ret != -EBUSY) {
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fprintf(stderr, "unexpected 2nd register: %d\n", ret);
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return 1;
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}
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close(evfd[1]);
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ret = io_uring_unregister_eventfd(&ring);
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if (ret) {
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fprintf(stderr, "unexpected unregister: %d\n", ret);
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return 1;
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}
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/* loop 100 registers/unregister */
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for (i = 0; i < 100; i++) {
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ret = io_uring_register_eventfd(&ring, evfd[0]);
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if (ret) {
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fprintf(stderr, "failed to register evfd: %d\n", ret);
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return 1;
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}
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ret = io_uring_unregister_eventfd(&ring);
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if (ret) {
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fprintf(stderr, "unexpected unregister: %d\n", ret);
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return 1;
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}
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}
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close(evfd[0]);
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return 0;
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}
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