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; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Lisa Hsu 30 */ 31 32/* @file 33 * Reference counted class containing ethernet packet data 34 */ 35 36#ifndef __DEV_NET_ETHERPKT_HH__ 37#define __DEV_NET_ETHERPKT_HH__ 38 39#include <cassert> 40#include <iosfwd> 41#include <memory> 42 43#include "base/types.hh" 44#include "sim/serialize.hh" 45 46/* 47 * Reference counted class containing ethernet packet data 48 */ 49class EthPacketData 50{ 51 public:
| 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; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 * Lisa Hsu 30 */ 31 32/* @file 33 * Reference counted class containing ethernet packet data 34 */ 35 36#ifndef __DEV_NET_ETHERPKT_HH__ 37#define __DEV_NET_ETHERPKT_HH__ 38 39#include <cassert> 40#include <iosfwd> 41#include <memory> 42 43#include "base/types.hh" 44#include "sim/serialize.hh" 45 46/* 47 * Reference counted class containing ethernet packet data 48 */ 49class EthPacketData 50{ 51 public:
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52 /*
| 52 /**
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53 * Pointer to packet data will be deleted 54 */ 55 uint8_t *data; 56
| 53 * Pointer to packet data will be deleted 54 */ 55 uint8_t *data; 56
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57 /* 58 * Length of the current packet
| 57 /** 58 * Amount of space occupied by the payload in the data buffer
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59 */ 60 unsigned length; 61
| 59 */ 60 unsigned length; 61
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62 public:
| 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
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63 EthPacketData()
| 71 EthPacketData()
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64 : data(NULL), length(0)
| 72 : data(nullptr), length(0), simLength(0)
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65 { } 66 67 explicit EthPacketData(unsigned size)
| 73 { } 74 75 explicit EthPacketData(unsigned size)
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68 : data(new uint8_t[size]), length(0)
| 76 : data(new uint8_t[size]), length(0), simLength(0)
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69 { } 70 71 ~EthPacketData() { if (data) delete [] data; } 72
| 77 { } 78 79 ~EthPacketData() { if (data) delete [] data; } 80
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73 public: 74
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75 void serialize(const std::string &base, CheckpointOut &cp) const; 76 void unserialize(const std::string &base, CheckpointIn &cp);
| 81 void serialize(const std::string &base, CheckpointOut &cp) const; 82 void unserialize(const std::string &base, CheckpointIn &cp);
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77 78 unsigned size() const { return length; }
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79}; 80 81typedef std::shared_ptr<EthPacketData> EthPacketPtr; 82 83#endif // __DEV_NET_ETHERPKT_HH__
| 83}; 84 85typedef std::shared_ptr<EthPacketData> EthPacketPtr; 86 87#endif // __DEV_NET_ETHERPKT_HH__
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