Add cross-link

1 files changed, 116 insertions, 0 deletions

diff --git a/contrib/libs/liburing/test/eeed8b54e0df.c b/contrib/libs/liburing/test/eeed8b54e0df.c
new file mode 100644
index 0000000000..c4118a2d51
--- /dev/null
+++ b/contrib/libs/liburing/test/eeed8b54e0df.c
@@ -0,0 +1,116 @@
+#include "../config-host.h"
+/* SPDX-License-Identifier: MIT */
+/*
+ * Description: -EAGAIN handling
+ *
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "helpers.h"
+#include "liburing.h"
+
+#define BLOCK	4096
+
+#ifndef RWF_NOWAIT
+#define RWF_NOWAIT	8
+#endif
+
+static int get_file_fd(void)
+{
+	ssize_t ret;
+	char *buf;
+	int fd;
+
+	fd = open("testfile", O_RDWR | O_CREAT, 0644);
+	unlink("testfile");
+	if (fd < 0) {
+		perror("open file");
+		return -1;
+	}
+
+	buf = t_malloc(BLOCK);
+	memset(buf, 0, BLOCK);
+	ret = write(fd, buf, BLOCK);
+	if (ret != BLOCK) {
+		if (ret < 0)
+			perror("write");
+		else
+			printf("Short write\n");
+		goto err;
+	}
+	fsync(fd);
+
+	if (posix_fadvise(fd, 0, 4096, POSIX_FADV_DONTNEED)) {
+		perror("fadvise");
+err:
+		close(fd);
+		free(buf);
+		return -1;
+	}
+
+	free(buf);
+	return fd;
+}
+
+int main(int argc, char *argv[])
+{
+	struct io_uring ring;
+	struct io_uring_sqe *sqe;
+	struct io_uring_cqe *cqe;
+	struct iovec iov;
+	int ret, fd;
+
+	if (argc > 1)
+		return T_EXIT_SKIP;
+
+	iov.iov_base = t_malloc(4096);
+	iov.iov_len = 4096;
+
+	ret = io_uring_queue_init(2, &ring, 0);
+	if (ret) {
+		printf("ring setup failed\n");
+		return T_EXIT_FAIL;
+
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	if (!sqe) {
+		printf("get sqe failed\n");
+		return T_EXIT_FAIL;
+	}
+
+	fd = get_file_fd();
+	if (fd < 0)
+		return T_EXIT_FAIL;
+
+	io_uring_prep_readv(sqe, fd, &iov, 1, 0);
+	sqe->rw_flags = RWF_NOWAIT;
+
+	ret = io_uring_submit(&ring);
+	if (ret != 1) {
+		printf("Got submit %d, expected 1\n", ret);
+		goto err;
+	}
+
+	ret = io_uring_peek_cqe(&ring, &cqe);
+	if (ret) {
+		printf("Ring peek got %d\n", ret);
+		goto err;
+	}
+
+	if (cqe->res != -EAGAIN && cqe->res != 4096) {
+		printf("cqe error: %d\n", cqe->res);
+		goto err;
+	}
+
+	close(fd);
+	return T_EXIT_PASS;
+err:
+	close(fd);
+	return T_EXIT_FAIL;
+}