src/base/stats/statdb.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  * Authors: Nathan Binkert
  29  */
  30
  31 #include "base/misc.hh"
  32 #include "base/trace.hh"
  33 #include "base/statistics.hh"
  34 #include "base/stats/statdb.hh"
  35
  36 using namespace std;
  37
  38 namespace Stats {
  39 namespace Database {
  40
  41 StatData *
  42 find(void *stat)
  43 {
  44     stat_map_t::const_iterator i = map().find(stat);
  45
  46     if (i == map().end())
  47         return NULL;
  48
  49     return (*i).second;
  50 }
  51
  52 void
  53 regStat(void *stat, StatData *data)
  54 {
  55     if (map().find(stat) != map().end())
  56         panic("shouldn't register stat twice!");
  57
  58     stats().push_back(data);
  59
  60 #ifndef NDEBUG
  61     pair<stat_map_t::iterator, bool> result =
  62 #endif
  63         map().insert(make_pair(stat, data));
  64     assert(result.second && "this should never fail");
  65     assert(map().find(stat) != map().end());
  66 }
  67
  68 void
  69 regPrint(void *stat)
  70 {
  71     StatData *data = find(stat);
  72     assert(data);
  73     data->flags |= print;
  74 }
  75
  76 TheDatabase &db()
  77 {
  78     static TheDatabase db;
  79     return db;
  80 }
  81
  82 /* namespace Database */ }
  83 /* namespace Stats */ }