Fixes

misc/http_client.nim

@@ -0,0 +1,30 @@
+# nim-raft
+# Copyright (c) 2023 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+# at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+import asyncdispatch, httpclient
+
+proc nonAsyncHttp() =
+    var client = newHttpClient()
+    echo "Non async started"
+    for i in 0 .. 30:
+        let resp = client.get("http://example.com")
+        echo resp.status
+    echo "Non async finished"
+
+proc asyncHttp() {.async.} =
+    var client = newAsyncHttpClient()
+    echo "Async started"
+    for i in 0 .. 30:
+        let resp = await client.get("http://example.com")
+        echo resp.status
+    echo "Async finished"
+
+
+waitFor asyncHttp()
+nonAsyncHttp()

raft/raft_api.nim

@@ -29,7 +29,11 @@ proc RaftNodeSmInit[SmCommandType, SmStateType](stateMachine: var RaftNodeStateM
 proc new*[SmCommandType, SmStateType](T: type RaftNode[SmCommandType, SmStateType];   # Create New Raft Node
                   id: RaftNodeId; peersIds: seq[RaftNodeId];
                   # persistentStorage: RaftNodePersistentStorage,
-                  msgSendCallback: RaftMessageSendCallback): T =
+                  msgSendCallback: RaftMessageSendCallback,
+                  electionTimeout: int=150,
+                  heartBeatTimeout: int=180,
+                  appendEntriesTimeout: int=150)
+): T =
   var
     peers: RaftNodePeers
 
@@ -39,7 +43,7 @@ proc new*[SmCommandType, SmStateType](T: type RaftNode[SmCommandType, SmStateTyp
   result = T(
     id: id, state: rnsFollower, currentTerm: 0, peers: peers, commitIndex: 0, lastApplied: 0,
     msgSendCallback: msgSendCallback, votedFor: DefaultUUID, currentLeaderId: DefaultUUID,
-
+    electionTimeout: electionTimeout, heartBeatTimeout: heartBeatTimeout, appendEntriesTimeout: appendEntriesTimeout
   )
 
   RaftNodeSmInit(result.stateMachine)
@@ -118,7 +122,7 @@ template RaftTimerCreate(timerInterval: int, timerCallback: RaftTimerCallback):
 
 # Timers scheduling stuff etc.
 proc RaftNodeScheduleHeartBeat*[SmCommandType, SmStateType](node: RaftNode[SmCommandType, SmStateType]) =
-  node.heartBeatTimer = RaftTimerCreate(150, proc() = asyncSpawn RaftNodeSendHeartBeat(node))
+  node.heartBeatTimer = RaftTimerCreate(node.heartBeatTimeout, proc() = asyncSpawn RaftNodeSendHeartBeat(node))
 
 proc RaftNodeSendHeartBeat*[SmCommandType, SmStateType](node: RaftNode[SmCommandType, SmStateType]) {.async.} =
   debug "Raft Node sending Heart-Beat to peers", node_id=node.id
@@ -134,7 +138,7 @@ proc RaftNodeSendHeartBeat*[SmCommandType, SmStateType](node: RaftNode[SmCommand
   RaftNodeScheduleHeartBeat(node)
 
 proc RaftNodeScheduleElectionTimeout*[SmCommandType, SmStateType](node: RaftNode[SmCommandType, SmStateType]) =
-  node.electionTimeoutTimer = RaftTimerCreate(150 + rand(150), proc =
+  node.electionTimeoutTimer = RaftTimerCreate(node.electionTimeout + rand(node.electionTimeout), proc =
     asyncSpawn RaftNodeStartElection(node)
   )