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/*
* Description: check that STDOUT write works
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include "liburing.h"
static int test_pipe_io(struct io_uring *ring)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct iovec vecs;
int ret;
vecs.iov_base = "This is a pipe test\n";
vecs.iov_len = strlen(vecs.iov_base);
sqe = io_uring_get_sqe(ring);
if (!sqe) {
printf("get sqe failed\n");
goto err;
}
io_uring_prep_writev(sqe, STDOUT_FILENO, &vecs, 1, 0);
ret = io_uring_submit(ring);
if (ret < 1) {
printf("Submitted only %d\n", ret);
goto err;
} else if (ret < 0) {
printf("sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
printf("wait completion %d\n", ret);
goto err;
}
if (cqe->res < 0) {
printf("STDOUT write error: %s\n", strerror(-cqe->res));
goto err;
}
if (cqe->res != vecs.iov_len) {
printf("Got %d write, wanted %d\n", cqe->res, (int)vecs.iov_len);
goto err;
}
io_uring_cqe_seen(ring, cqe);
return 0;
err:
return 1;
}
int main(int argc, char *argv[])
{
struct io_uring ring;
int ret;
ret = io_uring_queue_init(8, &ring, 0);
if (ret) {
printf("ring setup failed\n");
return 1;
}
ret = test_pipe_io(&ring);
if (ret) {
printf("test_pipe_io failed\n");
return ret;
}
return 0;
}
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