mirror of
https://github.com/openharmony/third_party_liburing.git
synced 2026-07-20 22:58:41 -04:00
fangzhiyi18
332 lines
6.5 KiB
C
332 lines
6.5 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Description: test fd passing with MSG_RING
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*
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include "liburing.h"
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#include "helpers.h"
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static int no_msg;
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static int no_sparse;
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static int no_fd_pass;
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struct data {
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pthread_t thread;
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pthread_barrier_t barrier;
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int ring_flags;
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int ring_fd;
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char buf[32];
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};
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static void *thread_fn(void *__data)
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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 data *d = __data;
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struct io_uring ring;
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int ret, fd = -1;
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io_uring_queue_init(8, &ring, d->ring_flags);
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ret = io_uring_register_files(&ring, &fd, 1);
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if (ret) {
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if (ret != -EINVAL && ret != -EBADF)
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fprintf(stderr, "thread file register: %d\n", ret);
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no_sparse = 1;
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pthread_barrier_wait(&d->barrier);
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return NULL;
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}
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d->ring_fd = ring.ring_fd;
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pthread_barrier_wait(&d->barrier);
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/* wait for MSG */
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ret = io_uring_wait_cqe(&ring, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe dst: %d\n", ret);
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return NULL;
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}
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if (cqe->res < 0) {
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fprintf(stderr, "cqe error dst: %d\n", cqe->res);
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return NULL;
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}
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fd = cqe->res;
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io_uring_cqe_seen(&ring, cqe);
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sqe = io_uring_get_sqe(&ring);
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io_uring_prep_read(sqe, fd, d->buf, sizeof(d->buf), 0);
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sqe->flags |= IOSQE_FIXED_FILE;
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io_uring_submit(&ring);
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ret = io_uring_wait_cqe(&ring, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe dst: %d\n", ret);
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return NULL;
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}
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if (cqe->res < 0) {
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fprintf(stderr, "cqe error dst: %d\n", cqe->res);
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return NULL;
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}
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io_uring_queue_exit(&ring);
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return NULL;
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}
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static int test_remote(struct io_uring *src, int ring_flags)
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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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int fds[2], fd, ret;
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struct data d;
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char buf[32];
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void *tret;
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int i;
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if (no_fd_pass)
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return 0;
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pthread_barrier_init(&d.barrier, NULL, 2);
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d.ring_flags = ring_flags;
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pthread_create(&d.thread, NULL, thread_fn, &d);
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pthread_barrier_wait(&d.barrier);
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memset(d.buf, 0, sizeof(d.buf));
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if (no_sparse)
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return 0;
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if (pipe(fds) < 0) {
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perror("pipe");
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return 1;
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}
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fd = fds[0];
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ret = io_uring_register_files(src, &fd, 1);
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if (ret) {
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fprintf(stderr, "register files failed: %d\n", ret);
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return 1;
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}
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for (i = 0; i < ARRAY_SIZE(buf); i++)
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buf[i] = rand();
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sqe = io_uring_get_sqe(src);
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io_uring_prep_write(sqe, fds[1], buf, sizeof(buf), 0);
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sqe->user_data = 1;
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sqe = io_uring_get_sqe(src);
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io_uring_prep_msg_ring_fd(sqe, d.ring_fd, 0, 0, 0, 0);
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sqe->user_data = 2;
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io_uring_submit(src);
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for (i = 0; i < 2; i++) {
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ret = io_uring_wait_cqe(src, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe: %d\n", ret);
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return 1;
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}
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if (cqe->res < 0) {
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fprintf(stderr, "cqe res %d\n", cqe->res);
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return 1;
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}
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if (cqe->user_data == 1 && cqe->res != sizeof(buf)) {
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fprintf(stderr, "short write %d\n", cqe->res);
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return 1;
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}
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io_uring_cqe_seen(src, cqe);
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}
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pthread_join(d.thread, &tret);
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if (memcmp(buf, d.buf, sizeof(buf))) {
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fprintf(stderr, "buffers differ\n");
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return 1;
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}
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close(fds[0]);
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close(fds[1]);
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io_uring_unregister_files(src);
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return 0;
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}
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static int test_local(struct io_uring *src, struct io_uring *dst)
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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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int fds[2], fd, ret;
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char buf[32], dst_buf[32];
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int i;
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if (no_fd_pass)
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return 0;
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fd = -1;
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ret = io_uring_register_files(dst, &fd, 1);
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if (ret) {
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if (ret == -EBADF || ret == -EINVAL)
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return 0;
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fprintf(stderr, "register files failed: %d\n", ret);
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return 1;
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}
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if (pipe(fds) < 0) {
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perror("pipe");
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return 1;
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}
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fd = fds[0];
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ret = io_uring_register_files(src, &fd, 1);
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if (ret) {
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fprintf(stderr, "register files failed: %d\n", ret);
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return 1;
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}
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memset(dst_buf, 0, sizeof(dst_buf));
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for (i = 0; i < ARRAY_SIZE(buf); i++)
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buf[i] = rand();
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sqe = io_uring_get_sqe(src);
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io_uring_prep_write(sqe, fds[1], buf, sizeof(buf), 0);
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sqe->user_data = 1;
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sqe = io_uring_get_sqe(src);
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io_uring_prep_msg_ring_fd(sqe, dst->ring_fd, 0, 0, 10, 0);
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sqe->user_data = 2;
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io_uring_submit(src);
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fd = -1;
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for (i = 0; i < 2; i++) {
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ret = io_uring_wait_cqe(src, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe: %d\n", ret);
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return 1;
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}
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if (cqe->user_data == 2 && cqe->res == -EINVAL) {
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no_fd_pass = 1;
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} else if (cqe->res < 0) {
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fprintf(stderr, "cqe res %d\n", cqe->res);
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return 1;
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}
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if (cqe->user_data == 1 && cqe->res != sizeof(buf)) {
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fprintf(stderr, "short write %d\n", cqe->res);
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return 1;
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}
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io_uring_cqe_seen(src, cqe);
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}
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if (no_fd_pass)
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goto out;
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ret = io_uring_wait_cqe(dst, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe dst: %d\n", ret);
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return 1;
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}
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if (cqe->res < 0) {
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fprintf(stderr, "cqe error dst: %d\n", cqe->res);
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return 1;
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}
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fd = cqe->res;
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io_uring_cqe_seen(dst, cqe);
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sqe = io_uring_get_sqe(dst);
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io_uring_prep_read(sqe, fd, dst_buf, sizeof(dst_buf), 0);
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sqe->flags |= IOSQE_FIXED_FILE;
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sqe->user_data = 3;
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io_uring_submit(dst);
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ret = io_uring_wait_cqe(dst, &cqe);
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if (ret) {
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fprintf(stderr, "wait_cqe dst: %d\n", ret);
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return 1;
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}
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if (cqe->res < 0) {
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fprintf(stderr, "cqe error dst: %d\n", cqe->res);
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return 1;
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}
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if (cqe->res != sizeof(dst_buf)) {
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fprintf(stderr, "short read %d\n", cqe->res);
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return 1;
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}
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if (memcmp(buf, dst_buf, sizeof(buf))) {
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fprintf(stderr, "buffers differ\n");
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return 1;
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}
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out:
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close(fds[0]);
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close(fds[1]);
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io_uring_unregister_files(src);
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io_uring_unregister_files(dst);
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return 0;
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}
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static int test(int ring_flags)
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{
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struct io_uring ring, ring2;
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int ret;
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ret = io_uring_queue_init(8, &ring, ring_flags);
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if (ret) {
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if (ret == -EINVAL)
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return 0;
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fprintf(stderr, "ring setup failed: %d\n", ret);
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return T_EXIT_FAIL;
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}
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ret = io_uring_queue_init(8, &ring2, ring_flags);
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if (ret) {
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fprintf(stderr, "ring setup failed: %d\n", ret);
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return T_EXIT_FAIL;
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}
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ret = test_local(&ring, &ring2);
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if (ret) {
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fprintf(stderr, "test local failed\n");
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return T_EXIT_FAIL;
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}
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if (no_msg)
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return T_EXIT_SKIP;
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ret = test_remote(&ring, ring_flags);
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if (ret) {
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fprintf(stderr, "test_remote failed\n");
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return T_EXIT_FAIL;
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}
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io_uring_queue_exit(&ring);
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io_uring_queue_exit(&ring2);
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return T_EXIT_PASS;
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}
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int main(int argc, char *argv[])
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{
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int ret;
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if (argc > 1)
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return T_EXIT_SKIP;
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ret = test(0);
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if (ret != T_EXIT_PASS) {
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fprintf(stderr, "ring flags 0 failed\n");
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return ret;
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}
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if (no_msg)
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return T_EXIT_SKIP;
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ret = test(IORING_SETUP_SINGLE_ISSUER|IORING_SETUP_DEFER_TASKRUN);
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if (ret != T_EXIT_PASS) {
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fprintf(stderr, "ring flags defer failed\n");
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return ret;
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}
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return ret;
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}
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