From 677c54a4ed4e4ecb185b46a8272add4c6df04b0b Mon Sep 17 00:00:00 2001
From: Sam Truzjan <pxqr.sta@gmail.com>
Date: Sun, 16 Feb 2014 23:59:52 +0400
Subject: Move ping function to Query module

---
 src/Network/BitTorrent/DHT.hs         | 2 +-
 src/Network/BitTorrent/DHT/Query.hs   | 8 ++++++++
 src/Network/BitTorrent/DHT/Session.hs | 6 ------
 3 files changed, 9 insertions(+), 7 deletions(-)

(limited to 'src/Network')

diff --git a/src/Network/BitTorrent/DHT.hs b/src/Network/BitTorrent/DHT.hs
index 92d1ec63..8b212ee8 100644
--- a/src/Network/BitTorrent/DHT.hs
+++ b/src/Network/BitTorrent/DHT.hs
@@ -136,7 +136,7 @@ bootstrap startNodes = do
   $(logInfoS) "bootstrap" "Start node bootstrapping"
   nid <- asks thisNodeId
   -- TODO filter duplicated in startNodes list
-  aliveNodes <- queryParallel (ping <$> startNodes)
+  aliveNodes <- queryParallel (pingQ <$> startNodes)
   _ <- sourceList [aliveNodes] $= search nid (findNodeQ nid) $$ C.consume
   $(logInfoS) "bootstrap" "Node bootstrapping finished"
 
diff --git a/src/Network/BitTorrent/DHT/Query.hs b/src/Network/BitTorrent/DHT/Query.hs
index 724c07e6..dcb217d6 100644
--- a/src/Network/BitTorrent/DHT/Query.hs
+++ b/src/Network/BitTorrent/DHT/Query.hs
@@ -11,6 +11,7 @@ module Network.BitTorrent.DHT.Query
          -- * Search
          -- ** Step
        , Iteration
+       , pingQ
        , findNodeQ
        , getPeersQ
        , announceQ
@@ -85,6 +86,13 @@ handlers = [pingH, findNodeH, getPeersH, announceH]
 
 type Iteration ip o = NodeInfo ip -> DHT ip (Either [NodeInfo ip] [o ip])
 
+-- | The most basic query. May be used to check if the given node is
+-- alive or get its 'NodeId'.
+pingQ :: Address ip => NodeAddr ip -> DHT ip (NodeInfo ip)
+pingQ addr = do
+  (nid, Ping) <- queryNode addr Ping
+  return (NodeInfo nid addr)
+
 -- TODO match with expected node id
 findNodeQ :: Address ip => NodeId -> Iteration ip NodeInfo
 findNodeQ nid NodeInfo {..} = do
diff --git a/src/Network/BitTorrent/DHT/Session.hs b/src/Network/BitTorrent/DHT/Session.hs
index 11e1c81a..6f13cf78 100644
--- a/src/Network/BitTorrent/DHT/Session.hs
+++ b/src/Network/BitTorrent/DHT/Session.hs
@@ -55,7 +55,6 @@ module Network.BitTorrent.DHT.Session
        , queryNode
        , queryParallel
        , (<@>)
-       , ping
        ) where
 
 import Prelude hiding (ioError)
@@ -463,8 +462,3 @@ queryParallel queries = do
   where
     cleanup :: [Either QueryFailure a] -> [a]
     cleanup = mapMaybe (either (const Nothing) Just)
-
-ping :: Address ip => NodeAddr ip -> DHT ip (NodeInfo ip)
-ping addr = do
-  (nid, Ping) <- queryNode addr Ping
-  return (NodeInfo nid addr)
-- 
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