+static int button_handle(
+ Button *b,
+ InhibitWhat inhibit_key,
+ HandleAction handle,
+ bool ignore_inhibited,
+ bool is_edge) {
+
+ int r;
+
+ assert(b);
+
+ r = manager_handle_action(b->manager, inhibit_key, handle, ignore_inhibited, is_edge);
+ if (r > 0)
+ /* We are executing the operation, so make sure we don't
+ * execute another one until the lid is opened/closed again */
+ b->lid_close_queued = false;
+
+ return 0;
+}
+
+static int button_dispatch(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+ Button *b = userdata;
+ struct input_event ev;
+ ssize_t l;
+
+ assert(s);
+ assert(fd == b->fd);
+ assert(b);
+
+ l = read(b->fd, &ev, sizeof(ev));
+ if (l < 0)
+ return errno != EAGAIN ? -errno : 0;
+ if ((size_t) l < sizeof(ev))
+ return -EIO;
+
+ if (ev.type == EV_KEY && ev.value > 0) {
+
+ switch (ev.code) {
+
+ case KEY_POWER:
+ case KEY_POWER2:
+ log_struct(LOG_INFO,
+ "MESSAGE=Power key pressed.",
+ MESSAGE_ID(SD_MESSAGE_POWER_KEY),
+ NULL);
+
+ button_handle(b, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true);
+ break;
+
+ /* The kernel is a bit confused here:
+
+ KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend"
+ KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate"
+ */
+
+ case KEY_SLEEP:
+ log_struct(LOG_INFO,
+ "MESSAGE=Suspend key pressed.",
+ MESSAGE_ID(SD_MESSAGE_SUSPEND_KEY),
+ NULL);
+
+ button_handle(b, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true);
+ break;
+
+ case KEY_SUSPEND:
+ log_struct(LOG_INFO,
+ "MESSAGE=Hibernate key pressed.",
+ MESSAGE_ID(SD_MESSAGE_HIBERNATE_KEY),
+ NULL);
+
+ button_handle(b, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true);
+ break;
+ }
+
+ } else if (ev.type == EV_SW && ev.value > 0) {
+
+ if (ev.code == SW_LID) {
+ log_struct(LOG_INFO,
+ "MESSAGE=Lid closed.",
+ MESSAGE_ID(SD_MESSAGE_LID_CLOSED),
+ NULL);
+
+ b->lid_close_queued = true;
+ button_handle(b, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, true);
+ }
+
+ } else if (ev.type == EV_SW && ev.value == 0) {
+
+ if (ev.code == SW_LID) {
+ log_struct(LOG_INFO,
+ "MESSAGE=Lid opened.",
+ MESSAGE_ID(SD_MESSAGE_LID_OPENED),
+ NULL);
+
+ b->lid_close_queued = false;
+ }
+ }
+
+ return 0;
+}
+