From daea135424857594622573fa1a900b436d7ee0ae Mon Sep 17 00:00:00 2001
From: Julien Dessaux
Date: Sat, 29 May 2010 00:55:14 +0200
Subject: Implemented the clean killing of plugins' threads.

---
 Hsbot/Irc/Plugin.hs | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

(limited to 'Hsbot/Irc/Plugin.hs')

diff --git a/Hsbot/Irc/Plugin.hs b/Hsbot/Irc/Plugin.hs
index d972db2..28026aa 100644
--- a/Hsbot/Irc/Plugin.hs
+++ b/Hsbot/Irc/Plugin.hs
@@ -1,6 +1,7 @@
 module Hsbot.Irc.Plugin
     ( IrcPlugin
     , IrcPluginState (..)
+    , killIrcPlugin
     , listPlugins
     , loadIrcPlugin
     , sendToPlugin
@@ -72,16 +73,23 @@ listPlugins originalRequest dest = do
 -- | Unloads a plugin
 unloadIrcPlugin :: String -> IrcBot ()
 unloadIrcPlugin name = do
+    killIrcPlugin name
     ircbot <- get
-    let oldPlugins    = ircBotPlugins ircbot
-        oldResumeData = ircBotResumeData ircbot
+    let oldResumeData = ircBotResumeData ircbot
+        newPlugins    = M.keys $ ircBotPlugins ircbot
+        newResumeData = M.insert "PLUGINS" (show newPlugins) oldResumeData
+    put $ ircbot { ircBotResumeData = newResumeData }
+
+-- | kills a plugin
+killIrcPlugin :: String -> IrcBot ()
+killIrcPlugin name = do
+    ircbot <- get
+    let oldPlugins = ircBotPlugins ircbot
     -- We check if the plugin exists
     case M.lookup name oldPlugins of
         Just (_, threadId) -> do
-            let newPlugins    = M.delete name oldPlugins
-                newResumeData = M.insert "PLUGINS" (show $ M.keys newPlugins) oldResumeData
+            let newPlugins = M.delete name oldPlugins
             liftIO $ throwTo threadId UserInterrupt
-            put $ ircbot { ircBotPlugins = newPlugins
-                         , ircBotResumeData = newResumeData }
-        Nothing     -> return ()
+            put $ ircbot { ircBotPlugins = newPlugins }
+        Nothing            -> return ()
 
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