/usr/include/mongo/db/stats/top.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 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | // top.h : DB usage monitor.
/* Copyright 2009 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.
*/
#pragma once
#include <boost/date_time/posix_time/posix_time.hpp>
#include "mongo/util/string_map.h"
namespace mongo {
/**
* tracks usage by collection
*/
class Top {
public:
Top() : _lock("Top") { }
struct UsageData {
UsageData() : time(0) , count(0) {}
UsageData( const UsageData& older , const UsageData& newer );
long long time;
long long count;
void inc( long long micros ) {
count++;
time += micros;
}
};
struct CollectionData {
/**
* constructs a diff
*/
CollectionData() {}
CollectionData( const CollectionData& older , const CollectionData& newer );
UsageData total;
UsageData readLock;
UsageData writeLock;
UsageData queries;
UsageData getmore;
UsageData insert;
UsageData update;
UsageData remove;
UsageData commands;
};
typedef StringMap<CollectionData> UsageMap;
public:
void record( const StringData& ns , int op , int lockType , long long micros , bool command );
void append( BSONObjBuilder& b );
void cloneMap(UsageMap& out) const;
CollectionData getGlobalData() const { return _global; }
void collectionDropped( const string& ns );
public: // static stuff
static Top global;
private:
void _appendToUsageMap( BSONObjBuilder& b , const UsageMap& map ) const;
void _appendStatsEntry( BSONObjBuilder& b , const char * statsName , const UsageData& map ) const;
void _record( CollectionData& c , int op , int lockType , long long micros , bool command );
mutable SimpleMutex _lock;
CollectionData _global;
UsageMap _usage;
string _lastDropped;
};
} // namespace mongo
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