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backend/session: add wlr_device.events.remove

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This commit is contained in:
Simon Ser 2020-12-27 12:54:35 +01:00
parent c49ea9ef4f
commit 5597776914
2 changed files with 16 additions and 5 deletions
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20
backend/session/session.c
View file

@ -139,7 +139,7 @@ static bool is_drm_card(const char *sysname) {
return true; return true;
} }
static int udev_event(int fd, uint32_t mask, void *data) { static int handle_udev_event(int fd, uint32_t mask, void *data) {
struct wlr_session *session = data; struct wlr_session *session = data;
struct udev_device *udev_dev = udev_monitor_receive_device(session->mon); struct udev_device *udev_dev = udev_monitor_receive_device(session->mon);
@ -170,15 +170,24 @@ static int udev_event(int fd, uint32_t mask, void *data) {
.path = devnode, .path = devnode,
}; };
wlr_signal_emit_safe(&session->events.add_drm_card, &event); wlr_signal_emit_safe(&session->events.add_drm_card, &event);
} else if (strcmp(action, "change") == 0) { } else if (strcmp(action, "change") == 0 || strcmp(action, "remove") == 0) {
dev_t devnum = udev_device_get_devnum(udev_dev); dev_t devnum = udev_device_get_devnum(udev_dev);
struct wlr_device *dev; struct wlr_device *dev;
wl_list_for_each(dev, &session->devices, link) { wl_list_for_each(dev, &session->devices, link) {
if (dev->dev == devnum) { if (dev->dev != devnum) {
continue;
}
if (strcmp(action, "change") == 0) {
wlr_log(WLR_DEBUG, "DRM device %s changed", sysname); wlr_log(WLR_DEBUG, "DRM device %s changed", sysname);
wlr_signal_emit_safe(&dev->events.change, NULL); wlr_signal_emit_safe(&dev->events.change, NULL);
break; } else if (strcmp(action, "remove") == 0) {
wlr_log(WLR_DEBUG, "DRM device %s removed", sysname);
wlr_signal_emit_safe(&dev->events.remove, NULL);
} else {
assert(0);
} }
break;
} }
} }
@ -229,7 +238,7 @@ struct wlr_session *wlr_session_create(struct wl_display *disp) {
int fd = udev_monitor_get_fd(session->mon); int fd = udev_monitor_get_fd(session->mon);
session->udev_event = wl_event_loop_add_fd(event_loop, fd, session->udev_event = wl_event_loop_add_fd(event_loop, fd,
WL_EVENT_READABLE, udev_event, session); WL_EVENT_READABLE, handle_udev_event, session);
if (!session->udev_event) { if (!session->udev_event) {
wlr_log_errno(WLR_ERROR, "Failed to create udev event source"); wlr_log_errno(WLR_ERROR, "Failed to create udev event source");
goto error_mon; goto error_mon;
@ -299,6 +308,7 @@ struct wlr_device *wlr_session_open_file(struct wlr_session *session,
dev->dev = st.st_rdev; dev->dev = st.st_rdev;
dev->device_id = device_id; dev->device_id = device_id;
wl_signal_init(&dev->events.change); wl_signal_init(&dev->events.change);
wl_signal_init(&dev->events.remove);
wl_list_insert(&session->devices, &dev->link); wl_list_insert(&session->devices, &dev->link);
return dev; return dev;

1
include/wlr/backend/session.h
View file

@ -16,6 +16,7 @@ struct wlr_device {
struct { struct {
struct wl_signal change; struct wl_signal change;
struct wl_signal remove;
} events; } events;
}; };