75 lines
1.3 KiB
C
75 lines
1.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Description: test that sigfd reading/polling works. A regression test for
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* the upstream commit:
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*
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* fd7d6de22414 ("io_uring: don't recurse on tsk->sighand->siglock with signalfd")
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*/
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#include <unistd.h>
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#include <sys/signalfd.h>
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#include <sys/epoll.h>
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#include <sys/poll.h>
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#include <stdio.h>
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#include "liburing.h"
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static int setup_signal(void)
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{
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sigset_t mask;
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int sfd;
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sigemptyset(&mask);
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sigaddset(&mask, SIGINT);
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sigprocmask(SIG_BLOCK, &mask, NULL);
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sfd = signalfd(-1, &mask, SFD_NONBLOCK);
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if (sfd < 0)
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perror("signalfd");
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return sfd;
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}
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static int test_uring(int sfd)
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{
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struct io_uring_sqe *sqe;
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struct io_uring_cqe *cqe;
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struct io_uring ring;
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int ret;
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io_uring_queue_init(32, &ring, 0);
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sqe = io_uring_get_sqe(&ring);
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io_uring_prep_poll_add(sqe, sfd, POLLIN);
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io_uring_submit(&ring);
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kill(getpid(), SIGINT);
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io_uring_wait_cqe(&ring, &cqe);
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if (cqe->res & POLLIN) {
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ret = 0;
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} else {
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fprintf(stderr, "Unexpected poll mask %x\n", cqe->res);
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ret = 1;
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}
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io_uring_cqe_seen(&ring, cqe);
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io_uring_queue_exit(&ring);
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return ret;
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}
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int main(int argc, char *argv[])
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{
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int sfd, ret;
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if (argc > 1)
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return 0;
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sfd = setup_signal();
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if (sfd < 0)
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return 1;
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ret = test_uring(sfd);
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if (ret)
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fprintf(stderr, "test_uring signalfd failed\n");
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close(sfd);
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return ret;
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}
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