dev/pktfifo.cc

   1 /*
   2  * Copyright (c) 2004-2005 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
  29 #include "base/misc.hh"
  30 #include "dev/pktfifo.hh"
  31
  32 using namespace std;
  33
  34 void
  35 PacketFifo::serialize(const string &base, ostream &os)
  36 {
  37     paramOut(os, base + ".size", _size);
  38     paramOut(os, base + ".maxsize", _maxsize);
  39     paramOut(os, base + ".reserved", _reserved);
  40     paramOut(os, base + ".packets", fifo.size());
  41
  42     int i = 0;
  43     std::list<PacketPtr>::iterator p = fifo.begin();
  44     std::list<PacketPtr>::iterator end = fifo.end();
  45     while (p != end) {
  46         (*p)->serialize(csprintf("%s.packet%d", base, i), os);
  47         ++p;
  48         ++i;
  49     }
  50 }
  51
  52 void
  53 PacketFifo::unserialize(const string &base, Checkpoint *cp,
  54                         const string &section)
  55 {
  56     paramIn(cp, section, base + ".size", _size);
  57 //  paramIn(cp, section, base + ".maxsize", _maxsize);
  58     paramIn(cp, section, base + ".reserved", _reserved);
  59     int fifosize;
  60     paramIn(cp, section, base + ".packets", fifosize);
  61
  62     fifo.clear();
  63
  64     for (int i = 0; i < fifosize; ++i) {
  65         PacketPtr p = new PacketData(16384);
  66         p->unserialize(csprintf("%s.packet%d", base, i), cp, section);
  67         fifo.push_back(p);
  68     }
  69 }