Add cross-link

1 files changed, 114 insertions, 0 deletions

diff --git a/contrib/libs/liburing/test/eventfd.c b/contrib/libs/liburing/test/eventfd.c
new file mode 100644
index 0000000000..317de29fb4
--- /dev/null
+++ b/contrib/libs/liburing/test/eventfd.c
@@ -0,0 +1,114 @@
+#include "../config-host.h"
+/* SPDX-License-Identifier: MIT */
+/*
+ * Description: run various nop tests
+ *
+ */
+#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_sqe *sqe;
+	struct io_uring_cqe *cqe;
+	struct io_uring ring;
+	uint64_t ptr;
+	struct iovec vec = {
+		.iov_base = &ptr,
+		.iov_len = sizeof(ptr)
+	};
+	int ret, evfd, i;
+
+	if (argc > 1)
+		return T_EXIT_SKIP;
+
+	ret = io_uring_queue_init_params(8, &ring, &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;
+	}
+
+	evfd = eventfd(0, EFD_CLOEXEC);
+	if (evfd < 0) {
+		perror("eventfd");
+		return T_EXIT_FAIL;
+	}
+
+	ret = io_uring_register_eventfd(&ring, evfd);
+	if (ret) {
+		fprintf(stderr, "failed to register evfd: %d\n", ret);
+		return T_EXIT_FAIL;
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	io_uring_prep_poll_add(sqe, evfd, POLLIN);
+	sqe->flags |= IOSQE_IO_LINK;
+	sqe->user_data = 1;
+
+	sqe = io_uring_get_sqe(&ring);
+	io_uring_prep_readv(sqe, evfd, &vec, 1, 0);
+	sqe->flags |= IOSQE_IO_LINK;
+	sqe->user_data = 2;
+
+	ret = io_uring_submit(&ring);
+	if (ret != 2) {
+		fprintf(stderr, "submit: %d\n", ret);
+		return T_EXIT_FAIL;
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	io_uring_prep_nop(sqe);
+	sqe->user_data = 3;
+
+	ret = io_uring_submit(&ring);
+	if (ret != 1) {
+		fprintf(stderr, "submit: %d\n", ret);
+		return T_EXIT_FAIL;
+	}
+
+	for (i = 0; i < 3; i++) {
+		ret = io_uring_wait_cqe(&ring, &cqe);
+		if (ret) {
+			fprintf(stderr, "wait: %d\n", ret);
+			return T_EXIT_FAIL;
+		}
+		switch (cqe->user_data) {
+		case 1:
+			/* POLLIN */
+			if (cqe->res != 1) {
+				fprintf(stderr, "poll: %d\n", cqe->res);
+				return T_EXIT_FAIL;
+			}
+			break;
+		case 2:
+			if (cqe->res != sizeof(ptr)) {
+				fprintf(stderr, "read: %d\n", cqe->res);
+				return T_EXIT_FAIL;
+			}
+			break;
+		case 3:
+			if (cqe->res) {
+				fprintf(stderr, "nop: %d\n", cqe->res);
+				return T_EXIT_FAIL;
+			}
+			break;
+		}
+		io_uring_cqe_seen(&ring, cqe);
+	}
+
+	return T_EXIT_PASS;
+}