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test/poll-cancel: improve test case

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- Add a timeout, if we don't finish in one second we are definitely
  hung because the poll remove command didn't work.
- Don't assume completion ordering

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2019-01-18 08:29:44 -07:00
parent 3640699bea
commit d58ea1a0ea
1 changed files with 38 additions and 9 deletions
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47
test/poll-cancel.c
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@@ -7,18 +7,32 @@
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <sys/poll.h>
#include <sys/wait.h>
#include <sys/signal.h>
#include "../src/liburing.h"
struct poll_data {
unsigned is_poll;
unsigned is_cancel;
};
static void sig_alrm(int sig)
{
printf("Timed out!\n");
exit(1);
}
int main(int argc, char *argv[])
{
struct io_uring ring;
int pipe1[2];
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
void *addr;
struct poll_data *pd, pds[2];
struct sigaction act;
int ret;
if (pipe(pipe1) != 0) {
@@ -32,6 +46,12 @@ int main(int argc, char *argv[])
return 1;
}
memset(&act, 0, sizeof(act));
act.sa_handler = sig_alrm;
act.sa_flags = SA_RESTART;
sigaction(SIGALRM, &act, NULL);
alarm(1);
sqe = io_uring_get_sqe(&ring);
if (!sqe) {
printf("child: get sqe failed\n");
@@ -39,8 +59,10 @@ int main(int argc, char *argv[])
}
io_uring_prep_poll_add(sqe, pipe1[0], POLLIN);
io_uring_sqe_set_data(sqe, sqe);
addr = sqe;
pds[0].is_poll = 1;
pds[0].is_cancel = 0;
io_uring_sqe_set_data(sqe, &pds[0]);
ret = io_uring_submit(&ring);
if (ret <= 0) {
@@ -54,8 +76,10 @@ int main(int argc, char *argv[])
return 1;
}
io_uring_prep_poll_remove(sqe, addr);
io_uring_sqe_set_data(sqe, sqe);
pds[1].is_poll = 0;
pds[1].is_cancel = 0;
io_uring_prep_poll_remove(sqe, &pds[0]);
io_uring_sqe_set_data(sqe, &pds[1]);
ret = io_uring_submit(&ring);
if (ret <= 0) {
@@ -69,8 +93,10 @@ int main(int argc, char *argv[])
return 1;
}
if (cqe->user_data != (unsigned long) addr) {
printf("first complete not poll\n");
pd = (struct poll_data *) (uintptr_t) cqe->user_data;
if (cqe->res != 0) {
printf("sqe (add=%d/remove=%d) failed with %ld\n", pd->is_poll,
pd->is_cancel, (long) cqe->res);
return 1;
}
@@ -79,8 +105,11 @@ int main(int argc, char *argv[])
printf("parent: get failed\n");
return 1;
}
if (cqe->user_data != (unsigned long) sqe) {
printf("second not cancel\n");
pd = (struct poll_data *) (uintptr_t) cqe->user_data;
if (cqe->res != 0) {
printf("sqe (add=%d/remove=%d) failed with %ld\n", pd->is_poll,
pd->is_cancel, (long) cqe->res);
return 1;
}