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// counters.cpp
/*
* 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/>.
*
* 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/pch.h"
#include "mongo/db/stats/counters.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/log.h"
namespace mongo {
OpCounters::OpCounters() {}
void OpCounters::incInsertInWriteLock(int n) {
RARELY _checkWrap();
_insert.fetchAndAdd(n);
}
void OpCounters::gotInsert() {
RARELY _checkWrap();
_insert.fetchAndAdd(1);
}
void OpCounters::gotQuery() {
RARELY _checkWrap();
_query.fetchAndAdd(1);
}
void OpCounters::gotUpdate() {
RARELY _checkWrap();
_update.fetchAndAdd(1);
}
void OpCounters::gotDelete() {
RARELY _checkWrap();
_delete.fetchAndAdd(1);
}
void OpCounters::gotGetMore() {
RARELY _checkWrap();
_getmore.fetchAndAdd(1);
}
void OpCounters::gotCommand() {
RARELY _checkWrap();
_command.fetchAndAdd(1);
}
void OpCounters::gotOp( int op , bool isCommand ) {
switch ( op ) {
case dbInsert: /*gotInsert();*/ break; // need to handle multi-insert
case dbQuery:
if ( isCommand )
gotCommand();
else
gotQuery();
break;
case dbUpdate: gotUpdate(); break;
case dbDelete: gotDelete(); break;
case dbGetMore: gotGetMore(); break;
case dbKillCursors:
case opReply:
case dbMsg:
break;
default: log() << "OpCounters::gotOp unknown op: " << op << endl;
}
}
void OpCounters::_checkWrap() {
const unsigned MAX = 1 << 30;
bool wrap =
_insert.loadRelaxed() > MAX ||
_query.loadRelaxed() > MAX ||
_update.loadRelaxed() > MAX ||
_delete.loadRelaxed() > MAX ||
_getmore.loadRelaxed() > MAX ||
_command.loadRelaxed() > MAX;
if ( wrap ) {
_insert.store(0);
_query.store(0);
_update.store(0);
_delete.store(0);
_getmore.store(0);
_command.store(0);
}
}
BSONObj OpCounters::getObj() const {
BSONObjBuilder b;
b.append( "insert" , _insert.loadRelaxed() );
b.append( "query" , _query.loadRelaxed() );
b.append( "update" , _update.loadRelaxed() );
b.append( "delete" , _delete.loadRelaxed() );
b.append( "getmore" , _getmore.loadRelaxed() );
b.append( "command" , _command.loadRelaxed() );
return b.obj();
}
void NetworkCounter::hit( long long bytesIn , long long bytesOut ) {
const long long MAX = 1ULL << 60;
// don't care about the race as its just a counter
bool overflow = _bytesIn > MAX || _bytesOut > MAX;
if ( overflow ) {
_lock.lock();
_overflows++;
_bytesIn = bytesIn;
_bytesOut = bytesOut;
_requests = 1;
_lock.unlock();
}
else {
_lock.lock();
_bytesIn += bytesIn;
_bytesOut += bytesOut;
_requests++;
_lock.unlock();
}
}
void NetworkCounter::append( BSONObjBuilder& b ) {
_lock.lock();
b.appendNumber( "bytesIn" , _bytesIn );
b.appendNumber( "bytesOut" , _bytesOut );
b.appendNumber( "numRequests" , _requests );
_lock.unlock();
}
OpCounters globalOpCounters;
OpCounters replOpCounters;
NetworkCounter networkCounter;
}
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