chore: exposing online state in libwaku (#3433)

library/libwaku.h

@@ -232,6 +232,10 @@ int waku_ping_peer(void* ctx,
                         WakuCallBack callback,
                         void* userData);
 
+int waku_is_online(void* ctx,
+                        WakuCallBack callback,
+                        void* userData);
+
 #ifdef __cplusplus
 }
 #endif

library/libwaku.nim

@@ -842,5 +842,19 @@ proc waku_ping_peer(
     userData,
   )
 
+proc waku_is_online(
+    ctx: ptr WakuContext, callback: WakuCallBack, userData: pointer
+): cint {.dynlib, exportc.} =
+  initializeLibrary()
+  checkLibwakuParams(ctx, callback, userData)
+
+  handleRequest(
+    ctx,
+    RequestType.PEER_MANAGER,
+    PeerManagementRequest.createShared(PeerManagementMsgType.IS_ONLINE),
+    callback,
+    userData,
+  )
+
 ### End of exported procs
 ################################################################################

library/waku_thread/inter_thread_communication/requests/peer_manager_request.nim

@@ -15,6 +15,7 @@ type PeerManagementMsgType* {.pure.} = enum
   DIAL_PEER
   DIAL_PEER_BY_ID
   GET_CONNECTED_PEERS
+  IS_ONLINE
 
 type PeerManagementRequest* = object
   operation: PeerManagementMsgType
@@ -144,5 +145,7 @@ proc process*(
       (inPeerIds, outPeerIds) = waku.node.peerManager.connectedPeers()
       connectedPeerids = concat(inPeerIds, outPeerIds)
     return ok(connectedPeerids.mapIt($it).join(","))
+  of IS_ONLINE:
+    return ok($waku.node.peerManager.isOnline())
 
   return ok("")