/usr/include/mongo/db/memconcept.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 | /**
* Copyright (C) 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/>.
*/
/* The idea here is to 'name' memory pointers so that we can do diagnostics.
these diagnostics might involve concurrency or other things. mainly would
be for _DEBUG builds. Experimental we'll see how useful.
*/
#pragma once
#include "mongo/base/string_data.h"
namespace mongo {
namespace memconcept {
/** these are like fancy enums - you can use them as "types" of things
and see if foo.concept == bar.concept.
copyable.
*/
class concept {
public:
concept() { *this = err; }
const char * toString() const { return c; }
static concept err;
static concept something;
static concept database;
static concept other;
static concept memorymappedfile;
static concept nsdetails;
static concept datafileheader;
static concept extent;
static concept record;
static concept deletedrecord;
static concept btreebucket;
private:
const char * c;
concept(const char *);
};
/** file was unmapped or something */
void invalidate(void *p, unsigned len=0);
/** note you can be more than one thing; a datafile header is also the starting pointer
for a file */
void is(void *p, concept c, const StringData& desc = StringData( "", 0 ), unsigned len=0);
#if 1
//#if !defined(_DEBUG)
inline void invalidate(void *p, unsigned len) { }
inline void is(void *p, concept c, const StringData& desc, unsigned) { }
#endif
}
}
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