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mongodb/db/stats/counters.h
2010-05-05 18:46:15 -04:00

133 lines
3.4 KiB
C++

// counters.h
/*
* Copyright (C) 2010 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "../../pch.h"
#include "../jsobj.h"
#include "../../util/message.h"
#include "../../util/processinfo.h"
namespace mongo {
/**
* for storing operation counters
* note: not thread safe. ok with that for speed
*/
class OpCounters {
public:
OpCounters();
AtomicUInt * getInsert(){ return _insert; }
AtomicUInt * getQuery(){ return _query; }
AtomicUInt * getUpdate(){ return _update; }
AtomicUInt * getDelete(){ return _delete; }
AtomicUInt * getGetMore(){ return _getmore; }
AtomicUInt * getCommand(){ return _command; }
void gotInsert(){ _insert[0]++; }
void gotQuery(){ _query[0]++; }
void gotUpdate(){ _update[0]++; }
void gotDelete(){ _delete[0]++; }
void gotGetMore(){ _getmore[0]++; }
void gotCommand(){ _command[0]++; }
void gotOp( int op , bool isCommand );
BSONObj& getObj(){ return _obj; }
private:
BSONObj _obj;
AtomicUInt * _insert;
AtomicUInt * _query;
AtomicUInt * _update;
AtomicUInt * _delete;
AtomicUInt * _getmore;
AtomicUInt * _command;
};
extern OpCounters globalOpCounters;
class IndexCounters {
public:
IndexCounters();
void btree( char * node ){
if ( ! _memSupported )
return;
if ( _sampling++ % _samplingrate )
return;
btree( _pi.blockInMemory( node ) );
}
void btree( bool memHit ){
if ( memHit )
_btreeMemHits++;
else
_btreeMemMisses++;
_btreeAccesses++;
}
void btreeHit(){ _btreeMemHits++; _btreeAccesses++; }
void btreeMiss(){ _btreeMemMisses++; _btreeAccesses++; }
void append( BSONObjBuilder& b );
private:
ProcessInfo _pi;
bool _memSupported;
int _sampling;
int _samplingrate;
int _resets;
long long _maxAllowed;
long long _btreeMemMisses;
long long _btreeMemHits;
long long _btreeAccesses;
};
extern IndexCounters globalIndexCounters;
class FlushCounters {
public:
FlushCounters();
void flushed(int ms);
void append( BSONObjBuilder& b );
private:
long long _total_time;
long long _flushes;
int _last_time;
Date_t _last;
};
extern FlushCounters globalFlushCounters;
class GenericCounter {
public:
void hit( const string& name , int count=0 );
BSONObj getObj();
private:
map<string,long long> _counts; // TODO: replace with thread safe map
mongo::mutex _mutex;
};
}