/usr/include/mongo/db/lockstat.h is in mongodb-dev 1:2.4.9-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | // lockstat.h
/**
* Copyright (C) 2008 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 "util/timer.h"
#include "mongo/platform/atomic_word.h"
namespace mongo {
class BSONObj;
class LockStat {
enum { N = 4 };
public:
void recordAcquireTimeMicros( char type , long long micros );
void recordLockTimeMicros( char type , long long micros );
void reset();
BSONObj report() const;
void report( StringBuilder& builder ) const;
long long getTimeLocked( char type ) const { return timeLocked[mapNo(type)].load(); }
private:
static void _append( BSONObjBuilder& builder, const AtomicInt64* data );
// RWrw
// in micros
AtomicInt64 timeAcquiring[N];
AtomicInt64 timeLocked[N];
static unsigned mapNo(char type);
static char nameFor(unsigned offset);
};
}
|