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tests: test timeout cancellation fails links

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Test that we appropriately fail linked requests when we cancel a
normal timeout.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e9acec809a3d86cab22601fe87c963c4ffac61e6.1631358658.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2021-09-11 12:11:56 +01:00
committed by Jens Axboe
parent 86a5d92390
commit fa4a89bea5
1 changed files with 84 additions and 0 deletions
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test/timeout.c
+84
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@@ -10,6 +10,8 @@
#include <string.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "liburing.h"
#include "../src/syscall.h"
@@ -1171,6 +1173,82 @@ err:
return 1;
}
static int test_timeout_link_cancel(void)
{
struct io_uring ring;
struct io_uring_cqe *cqe;
pid_t p;
int ret, i, wstatus;
ret = io_uring_queue_init(8, &ring, 0);
if (ret) {
fprintf(stderr, "ring create failed: %d\n", ret);
return 1;
}
p = fork();
if (p == -1) {
fprintf(stderr, "fork() failed\n");
return 1;
}
if (p == 0) {
struct io_uring_sqe *sqe;
struct __kernel_timespec ts;
const char *prog_path = "./exec-target";
msec_to_ts(&ts, 10000);
sqe = io_uring_get_sqe(&ring);
io_uring_prep_timeout(sqe, &ts, 0, 0);
sqe->flags |= IOSQE_IO_LINK;
sqe->user_data = 0;
sqe = io_uring_get_sqe(&ring);
io_uring_prep_nop(sqe);
sqe->user_data = 1;
ret = io_uring_submit(&ring);
if (ret != 2) {
fprintf(stderr, "%s: got %d, wanted 1\n", __FUNCTION__, ret);
exit(1);
}
/* trigger full cancellation */
ret = execl(prog_path, prog_path, NULL);
if (ret) {
fprintf(stderr, "exec failed %i\n", errno);
exit(1);
}
exit(0);
}
if (waitpid(p, &wstatus, 0) == (pid_t)-1) {
perror("waitpid()");
return 1;
}
if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus)) {
fprintf(stderr, "child failed %i\n", WEXITSTATUS(wstatus));
return 1;
}
for (i = 0; i < 2; ++i) {
ret = io_uring_wait_cqe(&ring, &cqe);
if (ret) {
fprintf(stderr, "wait_cqe=%d\n", ret);
return 1;
}
if (cqe->res != -ECANCELED) {
fprintf(stderr, "invalid result, user_data: %i res: %i\n",
(int)cqe->user_data, cqe->res);
return 1;
}
io_uring_cqe_seen(&ring, cqe);
}
io_uring_queue_exit(&ring);
return 0;
}
int main(int argc, char *argv[])
{
struct io_uring ring, sqpoll_ring;
@@ -1348,6 +1426,12 @@ int main(int argc, char *argv[])
return ret;
}
ret = test_timeout_link_cancel();
if (ret) {
fprintf(stderr, "test_timeout_link_cancel failed\n");
return ret;
}
if (sqpoll)
io_uring_queue_exit(&sqpoll_ring);
return 0;