+static void term_schedule_tblink(Terminal *term);
+static void term_schedule_cblink(Terminal *term);
+
+static void term_timer(void *ctx, long now)
+{
+ Terminal *term = (Terminal *)ctx;
+ int update = FALSE;
+
+ if (term->tblink_pending && now - term->next_tblink >= 0) {
+ term->tblinker = !term->tblinker;
+ term->tblink_pending = FALSE;
+ term_schedule_tblink(term);
+ update = TRUE;
+ }
+
+ if (term->cblink_pending && now - term->next_cblink >= 0) {
+ term->cblinker = !term->cblinker;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+ update = TRUE;
+ }
+
+ if (term->in_vbell && now - term->vbell_end >= 0) {
+ term->in_vbell = FALSE;
+ update = TRUE;
+ }
+
+ if (update ||
+ (term->window_update_pending && now - term->next_update >= 0))
+ term_update(term);
+}
+
+/*
+ * Call this whenever the terminal window state changes, to queue
+ * an update.
+ */
+static void seen_disp_event(Terminal *term)
+{
+ term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */
+ if (!term->window_update_pending) {
+ term->window_update_pending = TRUE;
+ term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term);
+ }
+}
+
+/*
+ * Call when the terminal's blinking-text settings change, or when
+ * a text blink has just occurred.
+ */
+static void term_schedule_tblink(Terminal *term)
+{
+ if (term->blink_is_real) {
+ if (!term->tblink_pending)
+ term->next_tblink = schedule_timer(TBLINK_DELAY, term_timer, term);
+ term->tblink_pending = TRUE;
+ } else {
+ term->tblinker = 1; /* reset when not in use */
+ term->tblink_pending = FALSE;
+ }
+}
+
+/*
+ * Likewise with cursor blinks.
+ */
+static void term_schedule_cblink(Terminal *term)
+{
+ if (term->cfg.blink_cur && term->has_focus) {
+ if (!term->cblink_pending)
+ term->next_cblink = schedule_timer(CBLINK_DELAY, term_timer, term);
+ term->cblink_pending = TRUE;
+ } else {
+ term->cblinker = 1; /* reset when not in use */
+ term->cblink_pending = FALSE;
+ }
+}
+
+/*
+ * Call to reset cursor blinking on new output.
+ */
+static void term_reset_cblink(Terminal *term)
+{
+ seen_disp_event(term);
+ term->cblinker = 1;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+}
+
+/*
+ * Call to begin a visual bell.
+ */
+static void term_schedule_vbell(Terminal *term, int already_started,
+ long startpoint)
+{
+ long ticks_already_gone;
+
+ if (already_started)
+ ticks_already_gone = GETTICKCOUNT() - startpoint;
+ else
+ ticks_already_gone = 0;
+
+ if (ticks_already_gone < VBELL_DELAY) {
+ term->in_vbell = TRUE;
+ term->vbell_end = schedule_timer(VBELL_DELAY - ticks_already_gone,
+ term_timer, term);
+ } else {
+ term->in_vbell = FALSE;
+ }
+}
+