From 94608f2544104e334bb3e60d433c17f93927863c Mon Sep 17 00:00:00 2001
From: Spencer Janssen <sjanssen@cse.unl.edu>
Date: Wed, 7 Mar 2007 07:42:23 +0100
Subject: Plan for statusbar/multithreading

darcs-hash:20070307064223-a5988-0580a4fe6cc01238e55f00d9dc637212afc3d165
---
 TODO | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'TODO')

diff --git a/TODO b/TODO
index e69de29..0103dac 100644
--- a/TODO
+++ b/TODO
@@ -0,0 +1,16 @@
+- think about the statusbar/multithreading.
+    Three shared TVars:
+        windowTitle :: TVar String
+        workspace   :: TVar Int
+        statusText  :: TVar String
+    Three threads:
+        Main thread, handles all of the events that it handles now.  When
+        necessary, it writes to workspace or windowTitle
+
+        Status IO thread, the algorithm is something like this:
+            forever $ do
+                s <- getLine
+                atomic (writeTVar statusText s)
+
+        Statusbar drawing thread, waits for changes in all three TVars, and
+        redraws whenever it finds a change.
-- 
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