src/kern/kernel_stats.hh

   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 #ifndef __KERNEL_STATS_HH__
  30 #define __KERNEL_STATS_HH__
  31
  32 #include <string>
  33
  34 #include "sim/serialize.hh"
  35 #include "sim/stats.hh"
  36
  37 // What does kernel stats expect is included?
  38 namespace Kernel {
  39
  40 class Statistics : public Serializable
  41 {
  42   protected:
  43     std::string myname;
  44
  45   protected:
  46     Stats::Scalar _arm;
  47     Stats::Scalar _quiesce;
  48
  49   public:
  50     virtual ~Statistics() {}
  51
  52     const std::string name() const { return myname; }
  53     virtual void regStats(const std::string &name);
  54
  55   public:
  56     void arm() { _arm++; }
  57     void quiesce() { _quiesce++; }
  58
  59   public:
  60     void serialize(CheckpointOut &cp) const override {}
  61     void unserialize(CheckpointIn &cp) override {}
  62 };
  63
  64 } // namespace Kernel
  65
  66 #endif // __KERNEL_STATS_HH__