test: use poll instead of a busy wait

Drop the busy loop we had waiting for an event to appear and just call poll on
the libinput fd.

This actually makes the tests more correct, if we now time out where we didn't
before it means we're not setting the timers correctly.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/test/litest.c b/test/litest.c
index a91207e..df521fe 100644 (file)
--- a/test/litest.c
+++ b/test/litest.c
@@ -1560,6 +1560,7 @@ litest_wait_for_event_of_type(struct libinput *li, ...)
        enum libinput_event_type types[32] = {LIBINPUT_EVENT_NONE};
        size_t ntypes = 0;
        enum libinput_event_type type;
+       struct pollfd fds;
 
        va_start(args, li);
        type = va_arg(args, int);
@@ -1571,12 +1572,16 @@ litest_wait_for_event_of_type(struct libinput *li, ...)
        }
        va_end(args);
 
+       fds.fd = libinput_get_fd(li);
+       fds.events = POLLIN;
+       fds.revents = 0;
+
        while (1) {
                size_t i;
                struct libinput_event *event;
 
                while ((type = libinput_next_event_type(li)) == LIBINPUT_EVENT_NONE) {
-                       msleep(10);
+                       poll(&fds, 1, -1);
                        libinput_dispatch(li);
                }