/usr/include/mongo/db/instance.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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | // instance.h : Global state functions.
//
/**
* 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 "curop-inl.h"
#include "cmdline.h"
#include "client.h"
#include "mongo/client/dbclientinterface.h"
namespace mongo {
extern string dbExecCommand;
/** a high level recording of operations to the database - sometimes used for diagnostics
and debugging.
*/
class DiagLog {
ofstream *f; // note this is never freed
/* 0 = off; 1 = writes, 2 = reads, 3 = both
7 = log a few reads, and all writes.
*/
int level;
mongo::mutex mutex;
void openFile();
public:
DiagLog();
int getLevel() const { return level; }
/**
* @return old
*/
int setLevel( int newLevel );
void flush();
void writeop(char *data,int len);
void readop(char *data, int len);
};
extern DiagLog _diaglog;
/* we defer response until we unlock. don't want a blocked socket to
keep things locked.
*/
struct DbResponse {
Message *response;
MSGID responseTo;
string exhaustNS; /* points to ns if exhaust mode. 0=normal mode*/
DbResponse(Message *r, MSGID rt) : response(r), responseTo(rt){ }
DbResponse() {
response = 0;
}
~DbResponse() { delete response; }
};
void assembleResponse( Message &m, DbResponse &dbresponse, const HostAndPort &client );
void getDatabaseNames( vector< string > &names , const string& usePath = dbpath );
/* returns true if there is no data on this server. useful when starting replication.
local database does NOT count.
*/
bool replHasDatabases();
/** "embedded" calls to the local server directly.
Caller does not need to lock, that is handled within.
*/
class DBDirectClient : public DBClientBase {
public:
using DBClientBase::query;
virtual auto_ptr<DBClientCursor> query(const string &ns, Query query, int nToReturn = 0, int nToSkip = 0,
const BSONObj *fieldsToReturn = 0, int queryOptions = 0, int batchSize = 0);
virtual bool isFailed() const {
return false;
}
virtual string toString() {
return "DBDirectClient";
}
virtual string getServerAddress() const {
return "localhost"; // TODO: should this have the port?
}
virtual bool call( Message &toSend, Message &response, bool assertOk=true , string * actualServer = 0 );
virtual void say( Message &toSend, bool isRetry = false , string * actualServer = 0 );
virtual void sayPiggyBack( Message &toSend ) {
// don't need to piggy back when connected locally
return say( toSend );
}
virtual void killCursor( long long cursorID );
virtual bool callRead( Message& toSend , Message& response ) {
return call( toSend , response );
}
virtual unsigned long long count(const string &ns, const BSONObj& query = BSONObj(), int options=0, int limit=0, int skip=0 );
virtual ConnectionString::ConnectionType type() const { return ConnectionString::MASTER; }
double getSoTimeout() const { return 0; }
virtual bool lazySupported() const { return true; }
virtual QueryOptions _lookupAvailableOptions();
private:
static HostAndPort _clientHost;
};
extern int lockFile;
#ifdef _WIN32
extern HANDLE lockFileHandle;
#endif
void acquirePathLock(bool doingRepair=false); // if doingRepair=true don't consider unclean shutdown an error
void maybeCreatePidFile();
void exitCleanly( ExitCode code );
} // namespace mongo
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