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Add chain failure handling test case

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Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2019-05-14 19:08:37 -06:00
parent 0ba9503f79
commit 1982bfd44d
2 changed files with 78 additions and 4 deletions
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3
examples/link-cp.c
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@@ -82,6 +82,9 @@ static void handle_cqe(struct io_uring_cqe *cqe)
{ {
struct io_data *data; struct io_data *data;
if (cqe->res < 0)
printf("cqe error: %s\n", strerror(cqe->res));
data = io_uring_cqe_get_data(cqe); data = io_uring_cqe_get_data(cqe);
if (!data) if (!data)
return; return;

79
test/link.c
View File

@@ -11,6 +11,64 @@
#include "../src/liburing.h" #include "../src/liburing.h"
/*
* Test failing head of chain, and dependent getting -ECANCELED
*/
static int test_single_link_fail(struct io_uring *ring)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
int ret, i;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
printf("get sqe failed\n");
goto err;
}
io_uring_prep_nop(sqe);
sqe->flags |= IOSQE_IO_LINK;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
printf("get sqe failed\n");
goto err;
}
io_uring_prep_nop(sqe);
ret = io_uring_submit(ring);
if (ret <= 0) {
printf("sqe submit failed: %d\n", ret);
goto err;
}
for (i = 0; i < 2; i++) {
ret = io_uring_peek_cqe(ring, &cqe);
if (ret < 0) {
printf("wait completion %d\n", ret);
goto err;
}
if (!cqe) {
printf("failed to get cqe\n");
goto err;
}
if (i == 0 && cqe->res != -EINVAL) {
printf("sqe0 failed with %d, wanted -EINVAL\n", cqe->res);
goto err;
}
if (i == 1 && cqe->res != -ECANCELED) {
printf("sqe0 failed with %d, wanted -ECANCELED\n", cqe->res);
goto err;
}
io_uring_cqe_seen(ring, cqe);
}
return 0;
err:
return 1;
}
/* /*
* Test two independent chains * Test two independent chains
*/ */
@@ -53,7 +111,7 @@ static int test_double_chain(struct io_uring *ring)
} }
io_uring_prep_nop(sqe); io_uring_prep_nop(sqe);
ret = io_uring_submit(ring); ret = io_uring_submit(ring);
if (ret <= 0) { if (ret <= 0) {
printf("sqe submit failed: %d\n", ret); printf("sqe submit failed: %d\n", ret);
@@ -108,7 +166,7 @@ static int test_double_link(struct io_uring *ring)
} }
io_uring_prep_nop(sqe); io_uring_prep_nop(sqe);
ret = io_uring_submit(ring); ret = io_uring_submit(ring);
if (ret <= 0) { if (ret <= 0) {
printf("sqe submit failed: %d\n", ret); printf("sqe submit failed: %d\n", ret);
@@ -154,7 +212,7 @@ static int test_single_link(struct io_uring *ring)
} }
io_uring_prep_nop(sqe); io_uring_prep_nop(sqe);
ret = io_uring_submit(ring); ret = io_uring_submit(ring);
if (ret <= 0) { if (ret <= 0) {
printf("sqe submit failed: %d\n", ret); printf("sqe submit failed: %d\n", ret);
@@ -177,7 +235,7 @@ err:
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
struct io_uring ring; struct io_uring ring, poll_ring;
int ret; int ret;
ret = io_uring_queue_init(8, &ring, 0); ret = io_uring_queue_init(8, &ring, 0);
@@ -187,6 +245,13 @@ int main(int argc, char *argv[])
} }
ret = io_uring_queue_init(8, &poll_ring, IORING_SETUP_IOPOLL);
if (ret) {
printf("poll_ring setup failed\n");
return 1;
}
ret = test_single_link(&ring); ret = test_single_link(&ring);
if (ret) { if (ret) {
printf("test_single_link failed\n"); printf("test_single_link failed\n");
@@ -205,5 +270,11 @@ int main(int argc, char *argv[])
return ret; return ret;
} }
ret = test_single_link_fail(&poll_ring);
if (ret) {
printf("test_single_link_fail failed\n");
return ret;
}
return 0; return 0;
} }