added TCP spawned parameter to probe

hbs2-core/lib/HBS2/Net/Messaging/TCP.hs

@@ -43,6 +43,7 @@ import Control.Exception
 import UnliftIO.Async
 import UnliftIO.STM
 import UnliftIO.Exception qualified as U
+import Streaming.Prelude qualified as S
 
 {-HLINT ignore "Functor law"-}
 
@@ -63,6 +64,7 @@ data MessagingTCP =
   , _tcpRecv             :: TQueue (Peer L4Proto, ByteString)
   , _tcpDefer            :: TVar (HashMap (Peer L4Proto) [(TimeSpec, ByteString)])
   , _tcpDeferEv          :: TQueue ()
+  , _tcpSpawned          :: TVar Int
   , _tcpProbe            :: TVar AnyProbe
   , _tcpOnClientStarted  :: PeerAddr L4Proto -> Word64 -> IO () -- ^ Cient TCP connection succeed
   }
@@ -91,6 +93,7 @@ newMessagingTCP pa = liftIO do
     <*> newTQueueIO
     <*> newTVarIO mempty
     <*> newTQueueIO
+    <*> newTVarIO 0
     <*> newTVarIO (AnyProbe ())
     <*> pure (\_ _ -> none) -- do nothing by default
 
@@ -182,7 +185,7 @@ spawnConnection :: forall m . MonadIO m
                -> SockAddr
                -> m ()
 
-spawnConnection tp env so sa = liftIO do
+spawnConnection tp env@MessagingTCP{..} so sa = liftIO do
 
   flip runContT pure $ do
 
@@ -224,6 +227,9 @@ spawnConnection tp env so sa = liftIO do
       atomically $ modifyTVar (view tcpPeerConn env) (HashMap.insert newP connId)
 
     when (used == 1) do
+
+      atomically $ modifyTVar _tcpSpawned succ
+
       q <- getWriteQueue connId
       updatePeer connId newP
 
@@ -270,6 +276,7 @@ spawnConnection tp env so sa = liftIO do
 
       ContT $ bracket none $ \_ -> mapM cancel [rd,wr]
       ContT $ bracket (pure connId) cleanupConn
+      ContT $ bracket none (const $ atomically $ modifyTVar _tcpSpawned pred)
 
       void $ waitAnyCatchCancel [rd,wr]
 
@@ -437,17 +444,15 @@ runMessagingTCP env@MessagingTCP{..} = liftIO do
     probes <- ContT $ withAsync $ forever do
       pause @'Seconds 10
       probe <- readTVarIO _tcpProbe
-      values <- atomically do
-        a <- readTVar _tcpConnPeer <&> HashMap.size <&> (L.singleton . ("tcpConnPeer",))
-        b <- readTVar _tcpPeerConn <&> HashMap.size <&> (L.singleton . ("tcpPeerConn",))
-        c <- readTVar _tcpConnUsed <&> HashMap.size <&> (L.singleton . ("tcpConnUsed",))
-        d <- readTVar _tcpConnQ <&> HashMap.size <&> (L.singleton . ("tcpConnQ",))
-        e <- readTVar _tcpPeerPx <&> HashMap.size <&> (L.singleton . ("tcpPeerPx",))
-        f <- readTVar _tcpPeerXp <&> HashMap.size <&> (L.singleton . ("tcpPeerXp",))
-        g <- readTVar _tcpDefer <&> HashMap.size <&> (L.singleton . ("tcpPeerDefer",))
-        pure $ mconcat [a, b, c, d, e, f, g]
-      acceptReport probe (fmap (over _2 fromIntegral) values)
-
+      acceptReport probe =<< S.toList_ do
+        S.yield =<< atomically (readTVar _tcpConnPeer <&> ("tcpConnPeer",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpPeerConn <&> ("tcpPeerConn",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpConnUsed <&> ("tcpConnUsed",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpConnQ <&> ("tcpConnQ",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpPeerPx <&> ("tcpPeerPx",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpPeerXp <&> ("tcpPeerXp",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpDefer <&> ("tcpPeerDefer",) . fromIntegral . HashMap.size)
+        S.yield =<< atomically (readTVar _tcpSpawned <&> ("tcpSpawned",) . fromIntegral)
 
     ContT $ bracket (pure ()) $ \_ -> mapM_ cancel [mon,con,stat,probes]