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libinput/test/path.c
Peter Hutterer 5b5b6bca06 Drop seat events 
seats are more a compositor concept than a concept of the input library. All
devices in a libinput context are associated with the seat given on creation
of the seat (maps to ID_SEAT in udev for the udev backend).

A logical seat may be assigned to a device (e.g. WL_SEAT) but this does not
necessarily map to the creation of the seat in the compositor.
Drop the seat events but keep seat objects around so that the caller can still
identify which seat a device belongs to.

If the libinput_seat_unref() in the udev backend destroys the seat, the device
list of that seat is invalid and we'd be accessing already freed bytes. To
avoid this, ref the seat before the device removal loop, then unref it once
we're done - that unref then may trigger the actual removal of the seat.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-01-17 18:17:11 +10:00

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/*
* Copyright © 2013 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <check.h>
#include <errno.h>
#include <fcntl.h>
#include <libinput.h>
#include <libudev.h>
#include <unistd.h>
#include "litest.h"
static int open_func_count = 0;
static int close_func_count = 0;
static int open_restricted(const char *path, int flags, void *data)
{
int fd;
open_func_count++;
fd = open(path, flags);
return fd < 0 ? -errno : fd;
}
static void close_restricted(int fd, void *data)
{
close_func_count++;
close(fd);
}
const struct libinput_interface simple_interface = {
.open_restricted = open_restricted,
.close_restricted = close_restricted,
};
START_TEST(path_create_NULL)
{
struct libinput *li;
const struct libinput_interface interface;
const char *path = "foo";
open_func_count = 0;
close_func_count = 0;
li = libinput_create_from_path(NULL, NULL, NULL);
ck_assert(li == NULL);
li = libinput_create_from_path(&interface, NULL, NULL);
ck_assert(li == NULL);
li = libinput_create_from_path(NULL, NULL, path);
ck_assert(li == NULL);
ck_assert_int_eq(open_func_count, 0);
ck_assert_int_eq(close_func_count, 0);
}
END_TEST
START_TEST(path_create_invalid)
{
struct libinput *li;
const char *path = "/tmp";
open_func_count = 0;
close_func_count = 0;
li = libinput_create_from_path(&simple_interface, NULL, path);
ck_assert(li == NULL);
ck_assert_int_eq(open_func_count, 1);
ck_assert_int_eq(close_func_count, 0);
libinput_destroy(li);
ck_assert_int_eq(close_func_count, 0);
}
END_TEST
START_TEST(path_create_destroy)
{
struct libinput *li;
struct libevdev *evdev;
struct libevdev_uinput *uinput;
int rc;
void *userdata = &rc;
evdev = libevdev_new();
ck_assert(evdev != NULL);
libevdev_set_name(evdev, "test device");
libevdev_enable_event_code(evdev, EV_KEY, BTN_LEFT, NULL);
libevdev_enable_event_code(evdev, EV_KEY, BTN_RIGHT, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_Y, NULL);
rc = libevdev_uinput_create_from_device(evdev,
LIBEVDEV_UINPUT_OPEN_MANAGED,
&uinput);
ck_assert_int_eq(rc, 0);
libevdev_free(evdev);
li = libinput_create_from_path(&simple_interface, userdata,
libevdev_uinput_get_devnode(uinput));
ck_assert(li != NULL);
ck_assert(libinput_get_user_data(li) == userdata);
ck_assert_int_eq(open_func_count, 1);
libevdev_uinput_destroy(uinput);
libinput_destroy(li);
ck_assert_int_eq(close_func_count, 1);
}
END_TEST
START_TEST(path_added_seat)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
struct libinput_event *event;
struct libinput_event_added_device *device_event;
struct libinput_device *device;
struct libinput_seat *seat;
const char *seat_name;
enum libinput_event_type type;
libinput_dispatch(li);
event = libinput_get_event(li);
ck_assert(event != NULL);
type = libinput_event_get_type(event);
ck_assert_int_eq(type, LIBINPUT_EVENT_ADDED_DEVICE);
device_event = (struct libinput_event_added_device*)event;
device = libinput_event_added_device_get_device(device_event);
seat = libinput_device_get_seat(device);
ck_assert(seat != NULL);
seat_name = libinput_seat_get_name(seat);
ck_assert_int_eq(strcmp(seat_name, "default"), 0);
libinput_event_destroy(event);
}
END_TEST
START_TEST(path_added_device)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
struct libinput_event *event;
struct libinput_event_added_device *device_event = NULL;
struct libinput_device *device;
libinput_dispatch(li);
while ((event = libinput_get_event(li))) {
enum libinput_event_type type;
type = libinput_event_get_type(event);
if (type == LIBINPUT_EVENT_ADDED_DEVICE) {
device_event = (struct libinput_event_added_device*)event;
break;
}
libinput_event_destroy(event);
}
ck_assert(device_event != NULL);
device = libinput_event_added_device_get_device(device_event);
ck_assert(device != NULL);
libinput_event_destroy(event);
}
END_TEST
START_TEST(path_suspend)
{
struct libinput *li;
struct libevdev *evdev;
struct libevdev_uinput *uinput;
int rc;
void *userdata = &rc;
evdev = libevdev_new();
ck_assert(evdev != NULL);
libevdev_set_name(evdev, "test device");
libevdev_enable_event_code(evdev, EV_KEY, BTN_LEFT, NULL);
libevdev_enable_event_code(evdev, EV_KEY, BTN_RIGHT, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_Y, NULL);
rc = libevdev_uinput_create_from_device(evdev,
LIBEVDEV_UINPUT_OPEN_MANAGED,
&uinput);
ck_assert_int_eq(rc, 0);
libevdev_free(evdev);
li = libinput_create_from_path(&simple_interface, userdata,
libevdev_uinput_get_devnode(uinput));
ck_assert(li != NULL);
libinput_suspend(li);
libinput_resume(li);
libevdev_uinput_destroy(uinput);
libinput_destroy(li);
}
END_TEST
START_TEST(path_double_suspend)
{
struct libinput *li;
struct libevdev *evdev;
struct libevdev_uinput *uinput;
int rc;
void *userdata = &rc;
evdev = libevdev_new();
ck_assert(evdev != NULL);
libevdev_set_name(evdev, "test device");
libevdev_enable_event_code(evdev, EV_KEY, BTN_LEFT, NULL);
libevdev_enable_event_code(evdev, EV_KEY, BTN_RIGHT, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_Y, NULL);
rc = libevdev_uinput_create_from_device(evdev,
LIBEVDEV_UINPUT_OPEN_MANAGED,
&uinput);
ck_assert_int_eq(rc, 0);
libevdev_free(evdev);
li = libinput_create_from_path(&simple_interface, userdata,
libevdev_uinput_get_devnode(uinput));
ck_assert(li != NULL);
libinput_suspend(li);
libinput_suspend(li);
libinput_resume(li);
libevdev_uinput_destroy(uinput);
libinput_destroy(li);
}
END_TEST
START_TEST(path_double_resume)
{
struct libinput *li;
struct libevdev *evdev;
struct libevdev_uinput *uinput;
int rc;
void *userdata = &rc;
evdev = libevdev_new();
ck_assert(evdev != NULL);
libevdev_set_name(evdev, "test device");
libevdev_enable_event_code(evdev, EV_KEY, BTN_LEFT, NULL);
libevdev_enable_event_code(evdev, EV_KEY, BTN_RIGHT, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(evdev, EV_REL, REL_Y, NULL);
rc = libevdev_uinput_create_from_device(evdev,
LIBEVDEV_UINPUT_OPEN_MANAGED,
&uinput);
ck_assert_int_eq(rc, 0);
libevdev_free(evdev);
li = libinput_create_from_path(&simple_interface, userdata,
libevdev_uinput_get_devnode(uinput));
ck_assert(li != NULL);
libinput_suspend(li);
libinput_resume(li);
libinput_resume(li);
libevdev_uinput_destroy(uinput);
libinput_destroy(li);
}
END_TEST
int main (int argc, char **argv) {
litest_add("path:create", path_create_NULL, LITEST_ANY, LITEST_ANY);
litest_add("path:create", path_create_invalid, LITEST_ANY, LITEST_ANY);
litest_add("path:create", path_create_destroy, LITEST_ANY, LITEST_ANY);
litest_add("path:suspend", path_suspend, LITEST_ANY, LITEST_ANY);
litest_add("path:suspend", path_double_suspend, LITEST_ANY, LITEST_ANY);
litest_add("path:suspend", path_double_resume, LITEST_ANY, LITEST_ANY);
litest_add("path:seat events", path_added_seat, LITEST_ANY, LITEST_ANY);
litest_add("path:device events", path_added_device, LITEST_ANY, LITEST_ANY);
return litest_run(argc, argv);
}
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