etherpkt.hh revision 6214
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 __ETHERPKT_HH__ 37#define __ETHERPKT_HH__ 38 39#include <iosfwd> 40#include <memory> 41#include <assert.h> 42 43#include "base/refcnt.hh" 44#include "base/types.hh" 45 46/* 47 * Reference counted class containing ethernet packet data 48 */ 49class Checkpoint; 50class EthPacketData : public RefCounted 51{ 52 public: 53 /* 54 * Pointer to packet data will be deleted 55 */ 56 uint8_t *data; 57 58 /* 59 * Length of the current packet 60 */ 61 int length; 62 63 public: 64 EthPacketData() 65 : data(NULL), length(0) 66 { } 67 68 explicit EthPacketData(size_t size) 69 : data(new uint8_t[size]), length(0) 70 { } 71 72 EthPacketData(std::auto_ptr<uint8_t> d, int l) 73 : data(d.release()), length(l) 74 { } 75 76 ~EthPacketData() { if (data) delete [] data; } 77 78 public: 79 void serialize(const std::string &base, std::ostream &os); 80 void unserialize(const std::string &base, Checkpoint *cp, 81 const std::string §ion); 82}; 83 84typedef RefCountingPtr<EthPacketData> EthPacketPtr; 85 86#endif // __ETHERPKT_HH__ 87