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// timer_stats.cpp
/* Copyright 2012 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/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/db/stats/timer_stats.h"
namespace mongo {
TimerHolder::TimerHolder( TimerStats* stats )
: _stats( stats ), _recorded( false ){
}
TimerHolder::~TimerHolder() {
if ( ! _recorded ) {
recordMillis();
}
}
int TimerHolder::recordMillis() {
_recorded = true;
if ( _stats ) {
return _stats->record( _t );
}
return _t.millis();
}
void TimerStats::recordMillis( int millis ) {
scoped_spinlock lk( _lock );
_num++;
_totalMillis += millis;
}
int TimerStats::record( const Timer& timer ) {
int millis = timer.millis();
recordMillis( millis );
return millis;
}
BSONObj TimerStats::getReport() const {
long long n, t;
{
scoped_spinlock lk( _lock );
n = _num;
t = _totalMillis;
}
BSONObjBuilder b(64);
b.appendNumber( "num", n );
b.appendNumber( "totalMillis" , t );
return b.obj();
}
}
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