From 30d859f9a42900e0717166caefe7986f0e0a75c3 Mon Sep 17 00:00:00 2001
From: lsalzman <lsalzman@gmail.com>
Date: Wed, 8 May 2013 10:46:17 +0300
Subject: [PATCH] avoid some looping in enet_host_bandwidth_throttle

---
 host.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/host.c b/host.c
index 92fe1b6..a95fed6 100644
--- a/host.c
+++ b/host.c
@@ -334,13 +334,15 @@ enet_host_bandwidth_throttle (ENetHost * host)
            bandwidth,
            throttle = 0,
            bandwidthLimit = 0;
-    int needsAdjustment;
+    int needsAdjustment = 0;
     ENetPeer * peer;
     ENetProtocol command;
 
     if (elapsedTime < ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL)
       return;
 
+    host -> bandwidthThrottleEpoch = timeCurrent;
+
     for (peer = host -> peers;
          peer < & host -> peers [host -> peerCount];
          ++ peer)
@@ -348,6 +350,9 @@ enet_host_bandwidth_throttle (ENetHost * host)
         if (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER)
           continue;
 
+        if (peer -> incomingBandwidth != 0)
+          needsAdjustment = 1;
+
         ++ peersTotal;
         dataTotal += peer -> outgoingDataTotal;
     }
@@ -356,13 +361,17 @@ enet_host_bandwidth_throttle (ENetHost * host)
       return;
 
     peersRemaining = peersTotal;
-    needsAdjustment = 1;
 
     if (host -> outgoingBandwidth == 0)
       bandwidth = ~0;
     else
       bandwidth = (host -> outgoingBandwidth * elapsedTime) / 1000;
 
+    if (dataTotal < bandwidth)
+      throttle = ENET_PEER_PACKET_THROTTLE_SCALE;
+    else
+      throttle = (bandwidth * ENET_PEER_PACKET_THROTTLE_SCALE) / dataTotal;
+
     while (peersRemaining > 0 && needsAdjustment != 0)
     {
         needsAdjustment = 0;
@@ -398,7 +407,6 @@ enet_host_bandwidth_throttle (ENetHost * host)
 
             peer -> outgoingBandwidthThrottleEpoch = timeCurrent;
 
-            
             needsAdjustment = 1;
             -- peersRemaining;
             bandwidth -= peerBandwidth;
@@ -477,8 +485,6 @@ enet_host_bandwidth_throttle (ENetHost * host)
        } 
     }
 
-    host -> bandwidthThrottleEpoch = timeCurrent;
-
     for (peer = host -> peers;
          peer < & host -> peers [host -> peerCount];
          ++ peer)