1 files changed, 15 insertions, 0 deletions
diff --git a/src/net.cpp b/src/net.cpp
index 781dbfadca..5afedb1fd2 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -620,6 +620,21 @@ void CNode::copyStats(CNodeStats &stats)
     X(nSendBytes);
     X(nRecvBytes);
     stats.fSyncNode = (this == pnodeSync);
+    
+    // It is common for nodes with good ping times to suddenly become lagged,
+    // due to a new block arriving or other large transfer.
+    // Merely reporting pingtime might fool the caller into thinking the node was still responsive,
+    // since pingtime does not update until the ping is complete, which might take a while.
+    // So, if a ping is taking an unusually long time in flight,
+    // the caller can immediately detect that this is happening.
+    int64 nPingUsecWait = 0;
+    if ((0 != nPingNonceSent) && (0 != nPingUsecStart)) {
+        nPingUsecWait = GetTimeMicros() - nPingUsecStart;
+    }
+    
+    // Raw ping time is in microseconds, but show it to user as whole seconds (Bitcoin users should be well used to small numbers with many decimal places by now :)
+    stats.dPingTime = (((double)nPingUsecTime) / 1e6);
+    stats.dPingWait = (((double)nPingUsecWait) / 1e6);
 }
 #undef X