From 29cefcbf1353b90f6b12334f8554efa87bd659c8 Mon Sep 17 00:00:00 2001
From: Ron Dreslinski <rdreslin@umich.edu>
Date: Sun, 12 Nov 2006 07:16:34 -0500
Subject: [PATCH] Don't insert reponses into the list more than once If you get
 inserted in the front, reschedule the event

--HG--
extra : convert_revision : eccbacf5ec85600e5b68eb554fee2c0e2b65e965
---
 src/mem/cache/base_cache.hh | 26 ++++++++++++++++++++++----
 src/mem/tport.cc            |  8 +++++++-
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh
index 9a79bd36c..584c2d5df 100644
--- a/src/mem/cache/base_cache.hh
+++ b/src/mem/cache/base_cache.hh
@@ -571,9 +571,15 @@ class BaseCache : public MemObject
             bool done = false;
 
             while (i != end && !done) {
-                if (time < i->first)
+                if (time < i->first) {
+                    if (i == cpuSidePort->transmitList.begin()) {
+                        //Inserting at begining, reschedule
+                        sendEvent->reschedule(time);
+                    }
                     cpuSidePort->transmitList.insert(i,std::pair<Tick,PacketPtr>
                                                      (time,pkt));
+                    done = true;
+                }
                 i++;
             }
         }
@@ -624,9 +630,15 @@ class BaseCache : public MemObject
             bool done = false;
 
             while (i != end && !done) {
-                if (time < i->first)
+                if (time < i->first) {
+                    if (i == cpuSidePort->transmitList.begin()) {
+                        //Inserting at begining, reschedule
+                        sendEvent->reschedule(time);
+                    }
                     cpuSidePort->transmitList.insert(i,std::pair<Tick,PacketPtr>
                                                      (time,pkt));
+                    done = true;
+                }
                 i++;
             }
         }
@@ -672,8 +684,14 @@ class BaseCache : public MemObject
         bool done = false;
 
         while (i != end && !done) {
-            if (time < i->first)
-                    memSidePort->transmitList.insert(i,std::pair<Tick,PacketPtr>(time,pkt));
+            if (time < i->first) {
+                if (i == memSidePort->transmitList.begin()) {
+                    //Inserting at begining, reschedule
+                    memSendEvent->reschedule(time);
+                }
+                memSidePort->transmitList.insert(i,std::pair<Tick,PacketPtr>(time,pkt));
+                done = true;
+            }
             i++;
         }
     }
diff --git a/src/mem/tport.cc b/src/mem/tport.cc
index a85ae2b14..c43c9aac0 100644
--- a/src/mem/tport.cc
+++ b/src/mem/tport.cc
@@ -118,8 +118,14 @@ SimpleTimingPort::sendTiming(PacketPtr pkt, Tick time)
     bool done = false;
 
     while (i != end && !done) {
-        if (time+curTick < i->first)
+        if (time+curTick < i->first) {
+            if (i == transmitList.begin()) {
+                //Inserting at begining, reschedule
+                sendEvent.reschedule(time+curTick);
+            }
             transmitList.insert(i,std::pair<Tick,PacketPtr>(time+curTick,pkt));
+            done = true;
+        }
         i++;
     }
 }