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/* SPDX-License-Identifier: MIT */
/*
* Description: run various file registration tests
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include "helpers.h"
#include "liburing.h"
static void close_files(int *files, int nr_files, int add)
{
char fname[32];
int i;
for (i = 0; i < nr_files; i++) {
if (files)
close(files[i]);
if (!add)
sprintf(fname, ".reg.%d", i);
else
sprintf(fname, ".add.%d", i + add);
unlink(fname);
}
if (files)
free(files);
}
static int *open_files(int nr_files, int extra, int add)
{
char fname[32];
int *files;
int i;
files = t_calloc(nr_files + extra, sizeof(int));
for (i = 0; i < nr_files; i++) {
if (!add)
sprintf(fname, ".reg.%d", i);
else
sprintf(fname, ".add.%d", i + add);
files[i] = open(fname, O_RDWR | O_CREAT, 0644);
if (files[i] < 0) {
perror("open");
free(files);
files = NULL;
break;
}
}
if (extra) {
for (i = nr_files; i < nr_files + extra; i++)
files[i] = -1;
}
return files;
}
static int test_update_multiring(struct io_uring *r1, struct io_uring *r2,
struct io_uring *r3, int do_unreg)
{
int *fds, *newfds;
fds = open_files(10, 0, 0);
newfds = open_files(10, 0, 1);
if (io_uring_register_files(r1, fds, 10) ||
io_uring_register_files(r2, fds, 10) ||
io_uring_register_files(r3, fds, 10)) {
fprintf(stderr, "%s: register files failed\n", __FUNCTION__);
goto err;
}
if (io_uring_register_files_update(r1, 0, newfds, 10) != 10 ||
io_uring_register_files_update(r2, 0, newfds, 10) != 10 ||
io_uring_register_files_update(r3, 0, newfds, 10) != 10) {
fprintf(stderr, "%s: update files failed\n", __FUNCTION__);
goto err;
}
if (!do_unreg)
goto done;
if (io_uring_unregister_files(r1) ||
io_uring_unregister_files(r2) ||
io_uring_unregister_files(r3)) {
fprintf(stderr, "%s: unregister files failed\n", __FUNCTION__);
goto err;
}
done:
close_files(fds, 10, 0);
close_files(newfds, 10, 1);
return 0;
err:
close_files(fds, 10, 0);
close_files(newfds, 10, 1);
return 1;
}
static int test_sqe_update(struct io_uring *ring)
{
struct io_uring_sqe *sqe;
struct io_uring_cqe *cqe;
int *fds, i, ret;
fds = t_malloc(sizeof(int) * 10);
for (i = 0; i < 10; i++)
fds[i] = -1;
sqe = io_uring_get_sqe(ring);
io_uring_prep_files_update(sqe, fds, 10, 0);
ret = io_uring_submit(ring);
if (ret != 1) {
fprintf(stderr, "submit: %d\n", ret);
return 1;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret) {
fprintf(stderr, "wait: %d\n", ret);
return 1;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret == -EINVAL) {
fprintf(stdout, "IORING_OP_FILES_UPDATE not supported, skipping\n");
return 0;
}
return ret != 10;
}
int main(int argc, char *argv[])
{
struct io_uring r1, r2, r3;
int ret;
if (argc > 1)
return 0;
if (io_uring_queue_init(8, &r1, 0) ||
io_uring_queue_init(8, &r2, 0) ||
io_uring_queue_init(8, &r3, 0)) {
fprintf(stderr, "ring setup failed\n");
return 1;
}
ret = test_update_multiring(&r1, &r2, &r3, 1);
if (ret) {
fprintf(stderr, "test_update_multiring w/unreg\n");
return ret;
}
ret = test_update_multiring(&r1, &r2, &r3, 0);
if (ret) {
fprintf(stderr, "test_update_multiring wo/unreg\n");
return ret;
}
ret = test_sqe_update(&r1);
if (ret) {
fprintf(stderr, "test_sqe_update failed\n");
return ret;
}
return 0;
}
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