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// timer_stats.cpp
/* Copyright 2012 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#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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