summaryrefslogtreecommitdiffhomepage
path: root/src/Plugins/PipeReader.hs
diff options
context:
space:
mode:
authorPavan Rikhi <pavan.rikhi@gmail.com>2018-03-17 22:48:24 -0400
committerjao <jao@gnu.org>2018-11-21 21:41:35 +0000
commit4d1402a1a7d87767267d48a77998e4fb13395b31 (patch)
tree17fd6160dc1fa9c8a0676a94bcf8d19b551c655c /src/Plugins/PipeReader.hs
parent9e2a5c7daddf683d4be7c318aefed3da3ea7a89a (diff)
downloadxmobar-4d1402a1a7d87767267d48a77998e4fb13395b31.tar.gz
xmobar-4d1402a1a7d87767267d48a77998e4fb13395b31.tar.bz2
Split Modules into Library & Executable Structure
Move the Main module to a new `app` directory. All other modules have been nested under the `Xmobar` name. Lots of module headers & imports were updated.
Diffstat (limited to 'src/Plugins/PipeReader.hs')
-rw-r--r--src/Plugins/PipeReader.hs47
1 files changed, 0 insertions, 47 deletions
diff --git a/src/Plugins/PipeReader.hs b/src/Plugins/PipeReader.hs
deleted file mode 100644
index b3e178d..0000000
--- a/src/Plugins/PipeReader.hs
+++ /dev/null
@@ -1,47 +0,0 @@
------------------------------------------------------------------------------
--- |
--- Module : Plugins.PipeReader
--- Copyright : (c) Andrea Rossato
--- License : BSD-style (see LICENSE)
---
--- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org>
--- Stability : unstable
--- Portability : unportable
---
--- A plugin for reading from named pipes
---
------------------------------------------------------------------------------
-
-module Plugins.PipeReader where
-
-import System.IO
-import Plugins
-import Environment
-import System.Posix.Files
-import Control.Concurrent(threadDelay)
-import Control.Exception
-import Control.Monad(forever, unless)
-import Control.Applicative ((<$>))
-
-data PipeReader = PipeReader String String
- deriving (Read, Show)
-
-instance Exec PipeReader where
- alias (PipeReader _ a) = a
- start (PipeReader p _) cb = do
- (def, pipe) <- split ':' <$> expandEnv p
- unless (null def) (cb def)
- checkPipe pipe
- h <- openFile pipe ReadWriteMode
- forever (hGetLineSafe h >>= cb)
- where
- split c xs | c `elem` xs = let (pre, post) = span (c /=) xs
- in (pre, dropWhile (c ==) post)
- | otherwise = ([], xs)
-
-checkPipe :: FilePath -> IO ()
-checkPipe file =
- handle (\(SomeException _) -> waitForPipe) $ do
- status <- getFileStatus file
- unless (isNamedPipe status) waitForPipe
- where waitForPipe = threadDelay 1000000 >> checkPipe file