/usr/include/mongo/db/dur_recover.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 | // @file dur.h durability support
/**
* Copyright (C) 2009 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 <boost/filesystem/operations.hpp>
#include <list>
#include "mongo/db/dur_journalformat.h"
#include "mongo/util/concurrency/mutex.h"
#include "mongo/util/file.h"
namespace mongo {
class MongoMMF;
namespace dur {
struct ParsedJournalEntry;
/** call go() to execute a recovery from existing journal files.
*/
class RecoveryJob : boost::noncopyable {
static class Last {
public:
Last();
MongoMMF* newEntry(const ParsedJournalEntry&, RecoveryJob&);
private:
MongoMMF *mmf;
string dbName;
int fileNo;
} last;
public:
RecoveryJob() : _lastDataSyncedFromLastRun(0),
_mx("recovery"), _recovering(false) { _lastSeqMentionedInConsoleLog = 1; }
void go(vector<boost::filesystem::path>& files);
~RecoveryJob();
/** @param data data between header and footer. compressed if recovering. */
void processSection(const JSectHeader *h, const void *data, unsigned len, const JSectFooter *f);
void close(); // locks and calls _close()
static RecoveryJob & get() { return _instance; }
private:
void write(Last& last, const ParsedJournalEntry& entry); // actually writes to the file
void applyEntry(Last& last, const ParsedJournalEntry& entry, bool apply, bool dump);
void applyEntries(const vector<ParsedJournalEntry> &entries);
bool processFileBuffer(const void *, unsigned len);
bool processFile(boost::filesystem::path journalfile);
void _close(); // doesn't lock
MongoMMF* getMongoMMF(const ParsedJournalEntry& entry);
list<boost::shared_ptr<MongoMMF> > _mmfs;
unsigned long long _lastDataSyncedFromLastRun;
unsigned long long _lastSeqMentionedInConsoleLog;
public:
mongo::mutex _mx; // protects _mmfs
private:
bool _recovering; // are we in recovery or WRITETODATAFILES
static RecoveryJob &_instance;
};
}
}
|