From 7be1d57200e9672910ae0cef74ee0074e171dbf1 Mon Sep 17 00:00:00 2001
From: Joshua Judson Rosen
Date: Sun, 26 Mar 2017 22:24:41 -0400
Subject: Invert GTK+/guile thread relationship

Making the GTK+ thread the main thread, and subordinating the guile thread,
lets the GUI continue to live after the robot has died--
which means that we'll be able to switch to just doing
everything in the GUI without requiring a separate xterm
to see the final stats after the robot dies.
---
 src/ui-window.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

(limited to 'src/ui-window.c')

diff --git a/src/ui-window.c b/src/ui-window.c
index fb6f2ed..e923c24 100644
--- a/src/ui-window.c
+++ b/src/ui-window.c
@@ -56,16 +56,21 @@ static void ui_window_init(UIWindow *window)
 
 	gtk_window_set_title(GTK_WINDOW(window), "GNU Robots");
 	gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
+
+	window->priv->cmdwin = ui_cmdwin_new();
+	window->priv->arena = ui_arena_new();
 }
 
-void ui_window_postinit(UIWindow *window, Map* map)
+void ui_window_postinit(UIWindow *window, Map* volatile* map)
 {
 	GtkWidget *vbox;
 
 	vbox = gtk_vbox_new(FALSE, 2);
-	window->priv->cmdwin = ui_cmdwin_new();
-	window->priv->arena = ui_arena_new();
-	ui_arena_set_map(UI_ARENA(window->priv->arena), map);
+
+	while(!*map); /* wait for map object creation by guile thread */
+
+	/* ... because we need guile to load the map before we do this: */
+	ui_arena_set_map(UI_ARENA(window->priv->arena), *map);
 
 	/* TODO: Add menu first etc */
 	gtk_box_pack_start(GTK_BOX(vbox), window->priv->arena, TRUE, TRUE, 0);
-- 
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