1 files changed, 104 insertions, 0 deletions
diff --git a/ext/dsent/model/timing_graph/ElectricalTimingNode.h b/ext/dsent/model/timing_graph/ElectricalTimingNode.h
new file mode 100644
index 000000000..01c6497da
--- /dev/null
+++ b/ext/dsent/model/timing_graph/ElectricalTimingNode.h
@@ -0,0 +1,104 @@
+#ifndef __DSENT_MODEL_ELECTRICAL_TIMING_NODE_H__
+#define __DSENT_MODEL_ELECTRICAL_TIMING_NODE_H__
+
+#include "util/CommonType.h"
+
+namespace DSENT
+{
+    class ElectricalModel;
+    
+    class ElectricalTimingNode
+    {
+        public:
+            // The starting visited number flag of all timing nodes
+            static const int TIMING_NODE_INIT_VISITED_NUM;
+
+        public:
+            ElectricalTimingNode(const String& instance_name_, ElectricalModel* model_);
+            virtual ~ElectricalTimingNode();
+
+        public:
+
+            // Calculate the delay this node contributes
+            virtual double calculateDelay() const = 0;
+            // Calculate the transition at this node 
+            virtual double calculateTransition() const = 0;
+            // get maximum of upstream drive resistance
+            virtual double getMaxUpstreamRes() const;
+            // get total amount of downstream load capacitance 
+            virtual double getTotalDownstreamCap() const;
+            // Return instance name
+            const String& getInstanceName() const;            
+            // get upstream timing nodes
+            vector<ElectricalTimingNode*>* getUpstreamNodes() const;
+            // get downstream timing nodes
+            vector<ElectricalTimingNode*>* getDownstreamNodes() const;
+            // Connect a downstream timing node
+            void addDownstreamNode(ElectricalTimingNode* node_);
+            // Return the node's parent model
+            ElectricalModel* getModel();
+            const ElectricalModel* getModel() const;
+            // Set/get false path marker
+            void setFalsePath(bool false_path_);
+            bool getFalsePath() const;
+            
+            virtual bool isDriver() const;
+            virtual bool isNet() const;
+            virtual bool isLoad() const;
+            
+            
+            //-----------------------------------------------------------------
+            // Functions for delay optimization
+            //-----------------------------------------------------------------
+            // Return true if the instance has minimum driving strength
+            virtual bool hasMinDrivingStrength() const;
+            // Return true if the instance has maximum driving strength
+            virtual bool hasMaxDrivingStrength() const;
+            // Increase driving strength index by 1
+            virtual void increaseDrivingStrength();
+            // Decrease driving strength index by 1
+            virtual void decreaseDrivingStrength();
+            //-----------------------------------------------------------------
+
+            //-----------------------------------------------------------------
+            // Node variables for critical path delay calculations
+            //-----------------------------------------------------------------
+            // Critical path marker
+            void setCritPath(int crit_path_);
+            int getCritPath() const; 
+            // Visited parity marker
+            void setVisitedNum(int visited_parity_);
+            int getVisitedNum() const;
+            // Delay left in this path
+            void setDelayLeft(double delay_left_);
+            double getDelayLeft() const;
+            //-----------------------------------------------------------------
+
+        
+        private:
+            // Disable copy constructor
+            ElectricalTimingNode(const ElectricalTimingNode& node_);
+
+        private:
+            // Name of this instance
+            String m_instance_name_;
+            // A pointer to the model that contains this node
+            ElectricalModel* m_model_;
+            // Upstream electrical nets
+            vector<ElectricalTimingNode*>* m_upstream_nodes_;
+            // Downstream electrical nets
+            vector<ElectricalTimingNode*>* m_downstream_nodes_;
+            // False path marker
+            bool m_false_path_;
+            // Critical path index (to next downstream node)
+            int m_crit_path_;
+            // Odd / even path visited (so that you don't have to clear it)
+            int m_visited_num_;
+            // The amount of delay left to the end of the timing path
+            double m_delay_left_;
+    };
+    
+} // namespace DSENT
+
+#endif // __DSENT_MODEL_ELECTRICAL_TIMING_NODE_H__
+