1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ 2 /* 3 * Copyright (c) 2008 INRIA 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation; 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 17 * 18 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> 19 */ 20 #ifndef FLOW_ID_TAG_H 21 #define FLOW_ID_TAG_H 22 23 #include "ns3/tag.h" 24 25 namespace ns3 { 26 27 class FlowIdTag : public Tag 28 { 29 public: 30 /** 31 * \brief Get the type ID. 32 * \return the object TypeId 33 */ 34 static TypeId GetTypeId (void); 35 virtual TypeId GetInstanceTypeId (void) const; 36 virtual uint32_t GetSerializedSize (void) const; 37 virtual void Serialize (TagBuffer buf) const; 38 virtual void Deserialize (TagBuffer buf); 39 virtual void Print (std::ostream &os) const; 40 FlowIdTag (); 41 42 /** 43 * Constructs a FlowIdTag with the given flow id 44 * 45 * \param flowId Id to use for the tag 46 */ 47 FlowIdTag (uint32_t flowId); 48 /** 49 * Sets the flow id for the tag 50 * \param flowId Id to assign to the tag 51 */ 52 void SetFlowId (uint32_t flowId); 53 /** 54 * Gets the flow id for the tag 55 * \returns current flow id for this tag 56 */ 57 uint32_t GetFlowId (void) const; 58 /** 59 * Uses a static variable to generate sequential flow id 60 * \returns flow id allocated 61 */ 62 static uint32_t AllocateFlowId (void); 63 private: 64 uint32_t m_flowId; //!< Flow ID 65 }; 66 67 } // namespace ns3 68 69 #endif /* FLOW_ID_TAG_H */ 70