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seat: Let client manage its own resources

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This makes seat_client resources inert when seats and/or input devices are
destroyed, rather than destroying the resources.

When the client calls e.g. wl_keyboard_release(), it's not expecting the
keyboard global to be already destroyed, so this results in an error such
as this:

    wl_display@1: error 0: invalid object 22
This commit is contained in:
Andri Yngvason 2023-04-02 10:18:28 +00:00 committed by Simon Ser
parent 1689a3503b
commit 3898bb482d
5 changed files with 45 additions and 33 deletions
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1
types/data_device/wlr_data_device.c
View file

@ -99,6 +99,7 @@ static const struct wl_data_device_interface data_device_impl = {
static void data_device_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
}

68
types/seat/wlr_seat.c
View file

@ -18,6 +18,9 @@ static void seat_handle_get_pointer(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wlr_seat_client_from_resource(seat_resource);
if (!seat_client) {
return;
}
if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_POINTER)) {
wl_resource_post_error(seat_resource, WL_SEAT_ERROR_MISSING_CAPABILITY,
"wl_seat.get_pointer called when no pointer capability has existed");
@ -32,6 +35,9 @@ static void seat_handle_get_keyboard(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wlr_seat_client_from_resource(seat_resource);
if (!seat_client) {
return;
}
if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
wl_resource_post_error(seat_resource, WL_SEAT_ERROR_MISSING_CAPABILITY,
"wl_seat.get_keyboard called when no keyboard capability has existed");
@ -46,6 +52,9 @@ static void seat_handle_get_touch(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wlr_seat_client_from_resource(seat_resource);
if (!seat_client) {
return;
}
if (!(seat_client->seat->accumulated_capabilities & WL_SEAT_CAPABILITY_TOUCH)) {
wl_resource_post_error(seat_resource, WL_SEAT_ERROR_MISSING_CAPABILITY,
"wl_seat.get_touch called when no touch capability has existed");
@ -56,16 +65,7 @@ static void seat_handle_get_touch(struct wl_client *client,
seat_client_create_touch(seat_client, version, id);
}
static void seat_client_handle_resource_destroy(
struct wl_resource *seat_resource) {
struct wlr_seat_client *client =
wlr_seat_client_from_resource(seat_resource);
wl_list_remove(wl_resource_get_link(seat_resource));
if (!wl_list_empty(&client->resources)) {
return;
}
static void seat_client_destroy(struct wlr_seat_client *client) {
wl_signal_emit_mutable(&client->events.destroy, client);
if (client == client->seat->pointer_state.focused_client) {
@ -81,27 +81,47 @@ static void seat_client_handle_resource_destroy(
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &client->pointers) {
wl_resource_destroy(resource);
seat_client_destroy_pointer(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->keyboards) {
wl_resource_destroy(resource);
seat_client_destroy_keyboard(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->touches) {
wl_resource_destroy(resource);
seat_client_destroy_touch(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->data_devices) {
// Make the data device inert
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
}
wl_resource_for_each_safe(resource, tmp, &client->resources) {
// Make the seat resource inert
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
struct wl_list *link = wl_resource_get_link(resource);
wl_list_remove(link);
wl_list_init(link);
}
wl_list_remove(&client->link);
free(client);
}
static void seat_client_handle_resource_destroy(
struct wl_resource *seat_resource) {
struct wlr_seat_client *client =
wlr_seat_client_from_resource(seat_resource);
if (!client) {
return;
}
wl_list_remove(wl_resource_get_link(seat_resource));
if (!wl_list_empty(&client->resources)) {
return;
}
seat_client_destroy(client);
}
static void seat_handle_release(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
@ -207,19 +227,7 @@ void wlr_seat_destroy(struct wlr_seat *seat) {
struct wlr_seat_client *client, *tmp;
wl_list_for_each_safe(client, tmp, &seat->clients, link) {
struct wl_resource *resource, *next;
/* wl_resource_for_each_safe isn't safe to use here, because the last
* wl_resource_destroy will also destroy the head we cannot do the last
* 'next' update that usually is harmless here.
* Work around this by breaking one step ahead
*/
wl_resource_for_each_safe(resource, next, &client->resources) {
// will destroy other resources as well
wl_resource_destroy(resource);
if (wl_resource_get_link(next) == &client->resources) {
break;
}
}
seat_client_destroy(client);
}
wlr_global_destroy_safe(seat->global);

3
types/seat/wlr_seat_keyboard.c
View file

@ -59,7 +59,6 @@ static struct wlr_seat_client *seat_client_from_keyboard_resource(
}
static void keyboard_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
seat_client_destroy_keyboard(resource);
}
@ -445,5 +444,7 @@ void seat_client_destroy_keyboard(struct wl_resource *resource) {
if (seat_client == NULL) {
return;
}
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
}

3
types/seat/wlr_seat_pointer.c
View file

@ -114,7 +114,6 @@ static const struct wl_pointer_interface pointer_impl = {
};
static void pointer_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
seat_client_destroy_pointer(resource);
}
@ -538,6 +537,8 @@ void seat_client_destroy_pointer(struct wl_resource *resource) {
if (seat_client == NULL) {
return;
}
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
}

3
types/seat/wlr_seat_touch.c
View file

@ -66,7 +66,6 @@ static const struct wl_touch_interface touch_impl = {
};
static void touch_handle_resource_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
seat_client_destroy_touch(resource);
}
@ -449,6 +448,8 @@ void seat_client_destroy_touch(struct wl_resource *resource) {
if (seat_client == NULL) {
return;
}
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
}