Drizzled Public API Documentation

logging_stats.h

00001 /*
00002  * Copyright (C) 2010 Joseph Daly <skinny.moey@gmail.com>
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *   * Redistributions of source code must retain the above copyright notice,
00009  *     this list of conditions and the following disclaimer.
00010  *   * Redistributions in binary form must reproduce the above copyright notice,
00011  *     this list of conditions and the following disclaimer in the documentation
00012  *     and/or other materials provided with the distribution.
00013  *   * Neither the name of Joseph Daly nor the names of its contributors
00014  *     may be used to endorse or promote products derived from this software
00015  *     without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
00027  * THE POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #pragma once
00031 
00032 #include "scoreboard_slot.h"
00033 #include "cumulative_stats.h"
00034 #include "scoreboard.h"
00035 
00036 #include <drizzled/atomics.h>
00037 #include <drizzled/enum.h>
00038 #include <drizzled/plugin/logging.h>
00039 
00040 #include <string>
00041 #include <vector>
00042 
00043 class LoggingStats: public drizzled::plugin::Logging
00044 {
00045 public:
00046 
00047   LoggingStats(std::string name_arg);
00048 
00049   ~LoggingStats();
00050 
00051   virtual bool post(drizzled::Session *session);
00052 
00053   virtual bool postEnd(drizzled::Session *session);
00054 
00055   virtual bool resetGlobalScoreboard();
00056 
00057   bool isEnabled() const
00058   {
00059     return is_enabled;
00060   }
00061 
00062   void enable()
00063   {
00064     is_enabled= true;
00065   }
00066 
00067   void disable()
00068   {
00069     is_enabled= false;
00070   }
00071 
00072   Scoreboard *getCurrentScoreboard()
00073   {          
00074     return current_scoreboard;
00075   }
00076 
00077   CumulativeStats *getCumulativeStats()
00078   {
00079     return cumulative_stats;
00080   }
00081 
00082 private:
00083   Scoreboard *current_scoreboard;
00084 
00085   CumulativeStats *cumulative_stats;
00086 
00087   drizzled::atomic<bool> is_enabled;
00088 
00089   void updateCurrentScoreboard(ScoreboardSlot *scoreboard_slot, drizzled::Session *session);
00090 
00091   typedef std::vector<std::vector<ScoreboardSlot* >* > ScoreBoardVectors;
00092 };