commit 1dd45fb4f3371f0256653b2186c8b4b3d26b3f41
author Bram Moolenaar <Bram@vim.org> Wed Jan 31 21:10:01 2018 +0100
committer Bram Moolenaar <Bram@vim.org> Wed Jan 31 21:10:01 2018 +0100
tree 1a98ce1bfba438843ef01ee54267da7fdd37b47e
parent a338adcf222b6a24e26ea5ae6a2ad27f914acb38

patch 8.0.1450: GUI: endless loop when stopping cursor blinking

Problem:    Endless loop when gui_mch_stop_blink() is called while blink_state
            is BLINK_OFF. (zdohnal)
Solution:   Avoid calling gui_update_cursor() recursively.

src/gui_photon.c

diff --git a/src/gui_photon.c b/src/gui_photon.c
index faed61d..fcfb4f6 100644
--- a/src/gui_photon.c
+++ b/src/gui_photon.c
@@ -383,7 +383,7 @@
 	    else
 	    {
 		gui_focus_change(FALSE);
-		gui_mch_stop_blink();
+		gui_mch_stop_blink(TRUE);
 	    }
 	    break;
 
@@ -2273,11 +2273,11 @@
 }
 
     void
-gui_mch_stop_blink(void)
+gui_mch_stop_blink(int may_call_gui_update_cursor)
 {
     PtSetResource(gui_ph_timer_cursor, Pt_ARG_TIMER_INITIAL, 0, 0);
 
-    if (blink_state == BLINK_OFF)
+    if (blink_state == BLINK_OFF && may_call_gui_update_cursor)
 	gui_update_cursor(TRUE, FALSE);
 
     blink_state = BLINK_NONE;