add som debug prints

app/Main.hs

@@ -35,6 +35,7 @@ main = do
         -- handle unsuccessful join
 
         putStrLn $ err <> " Error joining, start listening for incoming requests anyways"
+        print =<< readTVarIO thisNode
         wait =<< async (fediMainThreads serverSock thisNode)
         -- TODO: periodic retry
            )

src/Hash2Pub/DHTProtocol.hs

@@ -246,6 +246,7 @@ handleIncomingRequest :: LocalNodeStateSTM                     -- ^ the handling
                       -> SockAddr                           -- ^ source address of the request
                       -> IO ()
 handleIncomingRequest nsSTM sendQ msgSet sourceAddr = do
+    putStrLn $ "handling incoming request: " <> show msgSet
     ns <- readTVarIO nsSTM
     -- add nodestate to cache
     now <- getPOSIXTime

src/Hash2Pub/FediChord.hs

@@ -150,7 +150,6 @@ fediChordBootstrapJoin nsSTM (joinHost, joinPort) =
                            Just (FORWARD resultset) -> foldr' (addCacheEntryPure now) cacheAcc resultset
                               )
                            initCache bootstrapResponse
-               putStrLn "initialised bootstrap cache"
                fediChordJoin bootstrapCache nsSTM
                                                    )
        `catch` (\e -> pure . Left $ "Error at bootstrap joining: " <> displayException (e :: IOException))
@@ -192,6 +191,7 @@ maxEntryAge = 600
 -- | Periodically iterate through cache, clean up expired entries and verify unverified ones
 cacheVerifyThread :: LocalNodeStateSTM -> IO ()
 cacheVerifyThread nsSTM = forever $ do
+    putStrLn "cache verify run: begin"
     -- get cache
     (ns, cache) <- atomically $ do
         ns <- readTVar nsSTM
@@ -239,10 +239,12 @@ cacheVerifyThread nsSTM = forever $ do
     let nodesToQuery targetID = case queryLocalCache latestNs latestCache (lNumBestNodes latestNs) targetID of
                                   FOUND node -> [node]
                                   FORWARD nodeSet -> remoteNode <$> Set.elems nodeSet
+    print $ checkCacheSliceInvariants latestNs latestCache
     forM_ (checkCacheSliceInvariants latestNs latestCache) (\targetID ->
         forkIO $ sendQueryIdMessages targetID latestNs (Just (1 + jEntriesPerSlice latestNs)) (nodesToQuery targetID) >> pure () -- ask for 1 entry more than j because of querying the middle
                                                              )
     
+    putStrLn "cache verify run: end"
     threadDelay $ 10^6 * round maxEntryAge `div` 20
 
 
@@ -309,6 +311,8 @@ stabiliseThread :: LocalNodeStateSTM -> IO ()
 stabiliseThread nsSTM = forever $ do
     ns <- readTVarIO nsSTM
 
+    putStrLn "stabilise run: begin"
+
     -- iterate through the same snapshot, collect potential new neighbours
     -- and nodes to be deleted, and modify these changes only at the end of
     -- each stabilise run.
@@ -356,6 +360,7 @@ stabiliseThread nsSTM = forever $ do
             writeTVar nsSTM $ addSuccessors [nextEntry] latestNs
                                                                      )
 
+    putStrLn "stabilise run: end"
     -- TODO: make delay configurable
     threadDelay (60 * 10^6)
   where
@@ -420,6 +425,7 @@ sendThread sock sendQ = forever $ do
 -- | Sets up and manages the main server threads of FediChord
 fediMainThreads :: Socket -> LocalNodeStateSTM -> IO ()
 fediMainThreads sock nsSTM = do
+    (\x -> putStrLn $ "launching threads, ns: " <> show x) =<< readTVarIO nsSTM
     sendQ <- newTQueueIO
     recvQ <- newTQueueIO
     -- concurrently launch all handler threads, if one of them throws an exception

src/Hash2Pub/FediChordTypes.hs

@@ -80,6 +80,8 @@ import qualified Network.ByteOrder             as NetworkBytes
 
 import           Hash2Pub.Utils
 
+import           Debug.Trace                   (trace)
+
 
 
 -- define protocol constants