implemented global lock

[Rakka.git] / Rakka / SystemConfig.hs

diff --git a/Rakka/SystemConfig.hs b/Rakka/SystemConfig.hs
index 10b39b354fa5ba1ae986befc19f2f22ca02bfa3d..11fe124a155a62c4bcb4f8b4b28601f3804aca59 100644 (file)
--- a/Rakka/SystemConfig.hs
+++ b/Rakka/SystemConfig.hs
@@ -12,6 +12,10 @@ module Rakka.SystemConfig
     , DefaultPage(..)
     , StyleSheet(..)
     , Languages(..)
+    , GlobalLock(..)
+
+    , serializeStringPairs
+    , deserializeStringPairs
     )
     where
 
@@ -206,3 +210,15 @@ instance SysConfValue Languages where
                                  , ("pt", "Português")
                                  , ("sv", "Svenska"  )
                                  ]
+
+
+newtype GlobalLock = GlobalLock Bool deriving (Show, Typeable)
+instance SysConfValue GlobalLock where
+    confPath _      = "globalLock"
+    serialize (GlobalLock isLocked)
+        | isLocked  = "*"
+        | otherwise = ""
+    deserialize "*" = Just (GlobalLock True)
+    deserialize ""  = Just (GlobalLock False)
+    deserialize _   = Nothing
+    defaultValue _  = GlobalLock False