1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 35 unchanged lines hidden (view full) --- 44#include "sim/serialize.hh" 45 46/* 47 * Reference counted class containing ethernet packet data 48 */ 49class EthPacketData 50{ 51 public: |
52 /** |
53 * Pointer to packet data will be deleted 54 */ 55 uint8_t *data; 56 |
57 /** 58 * Amount of space occupied by the payload in the data buffer |
59 */ 60 unsigned length; 61 |
62 /** 63 * Effective length, used for modeling timing in the simulator. 64 * This could be different from length if the packets are assumed 65 * to use a tightly packed or compressed format, but it's not worth 66 * the performance/complexity hit to perform that packing or compression 67 * in the simulation. 68 */ 69 unsigned simLength; 70 |
71 EthPacketData() |
72 : data(nullptr), length(0), simLength(0) |
73 { } 74 75 explicit EthPacketData(unsigned size) |
76 : data(new uint8_t[size]), length(0), simLength(0) |
77 { } 78 79 ~EthPacketData() { if (data) delete [] data; } 80 |
81 void serialize(const std::string &base, CheckpointOut &cp) const; 82 void unserialize(const std::string &base, CheckpointIn &cp); |
83}; 84 85typedef std::shared_ptr<EthPacketData> EthPacketPtr; 86 87#endif // __DEV_NET_ETHERPKT_HH__ |