102 lines
1.9 KiB
C
102 lines
1.9 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Test case for SQPOLL missing a 'ret' clear in case of busy.
|
|
*
|
|
* Heavily based on a test case from
|
|
* Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "helpers.h"
|
|
#include "liburing.h"
|
|
|
|
#define FILE_SIZE (128 * 1024)
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct io_uring ring;
|
|
int i, fd, ret;
|
|
struct io_uring_sqe *sqe;
|
|
struct io_uring_cqe *cqe;
|
|
struct iovec *iovecs;
|
|
struct io_uring_params p;
|
|
char *fname;
|
|
void *buf;
|
|
|
|
if (geteuid()) {
|
|
fprintf(stdout, "Test requires root, skipping\n");
|
|
return 0;
|
|
}
|
|
|
|
memset(&p, 0, sizeof(p));
|
|
p.flags = IORING_SETUP_SQPOLL;
|
|
ret = t_create_ring_params(4, &ring, &p);
|
|
if (ret == T_SETUP_SKIP)
|
|
return 0;
|
|
else if (ret < 0)
|
|
return 1;
|
|
|
|
if (argc > 1) {
|
|
fname = argv[1];
|
|
} else {
|
|
fname = ".sqpoll.tmp";
|
|
t_create_file(fname, FILE_SIZE);
|
|
}
|
|
|
|
fd = open(fname, O_RDONLY | O_DIRECT);
|
|
if (fd < 0) {
|
|
perror("open");
|
|
goto out;
|
|
}
|
|
|
|
iovecs = t_calloc(10, sizeof(struct iovec));
|
|
for (i = 0; i < 10; i++) {
|
|
t_posix_memalign(&buf, 4096, 4096);
|
|
iovecs[i].iov_base = buf;
|
|
iovecs[i].iov_len = 4096;
|
|
}
|
|
|
|
ret = io_uring_register_files(&ring, &fd, 1);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "register files %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
sqe = io_uring_get_sqe(&ring);
|
|
if (!sqe)
|
|
break;
|
|
|
|
io_uring_prep_readv(sqe, 0, &iovecs[i], 1, 0);
|
|
sqe->flags |= IOSQE_FIXED_FILE;
|
|
|
|
ret = io_uring_submit(&ring);
|
|
usleep(1000);
|
|
}
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
ret = io_uring_wait_cqe(&ring, &cqe);
|
|
if (ret) {
|
|
fprintf(stderr, "wait_cqe=%d\n", ret);
|
|
break;
|
|
}
|
|
if (cqe->res != 4096) {
|
|
fprintf(stderr, "ret=%d, wanted 4096\n", cqe->res);
|
|
ret = 1;
|
|
break;
|
|
}
|
|
io_uring_cqe_seen(&ring, cqe);
|
|
}
|
|
|
|
close(fd);
|
|
out:
|
|
if (fname != argv[1])
|
|
unlink(fname);
|
|
io_uring_queue_exit(&ring);
|
|
return ret;
|
|
}
|