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diff --git a/src/mem/ruby/network/garnet-fixed-pipeline/OutVcState_d.hh b/src/mem/ruby/network/garnet-fixed-pipeline/OutVcState_d.hh
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+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * OutVCState_d.h
+ *
+ * Niket Agarwal, Princeton University
+ *
+ * */
+
+#ifndef OUT_VC_STATE_D_H
+#define OUT_VC_STATE_D_H
+
+#include "NetworkHeader.hh"
+
+class OutVcState_d {
+public:
+        OutVcState_d(int id);
+
+        int get_inport() {return m_in_port; }
+        int get_invc() { return m_in_vc; }
+        int get_credit_count() {return m_credit_count; }
+        void set_inport(int port) {m_in_port = port; }
+        void set_invc(int vc) {m_in_vc = vc; }
+
+        inline bool isInState(VC_state_type state, Time request_time)
+        {
+                return ((m_vc_state == state) && (request_time >= m_time) );
+        }
+
+        inline void setState(VC_state_type state, Time time)
+        {
+                m_vc_state = state;
+                m_time = time;
+        }
+
+        inline bool has_credits()
+        {
+                return (m_credit_count > 0);
+        }
+
+        inline void increment_credit()
+        {
+                m_credit_count++;
+        }
+
+        inline void decrement_credit()
+        {
+                m_credit_count--;
+        }
+
+private:
+        int m_id ;
+        Time m_time;
+        VC_state_type m_vc_state;
+        int m_in_port;
+        int m_in_vc;
+        int m_credit_count;
+};
+
+#endif