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// database.cpp
/**
* 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/>.
*/
#include "pch.h"
#include "pdfile.h"
#include "database.h"
#include "instance.h"
namespace mongo {
bool Database::_openAllFiles = false;
Database::Database(const char *nm, bool& newDb, const string& _path )
: name(nm), path(_path), namespaceIndex( path, name ) {
{ // check db name is valid
size_t L = strlen(nm);
uassert( 10028 , "db name is empty", L > 0 );
uassert( 10029 , "bad db name [1]", *nm != '.' );
uassert( 10030 , "bad db name [2]", nm[L-1] != '.' );
uassert( 10031 , "bad char(s) in db name", strchr(nm, ' ') == 0 );
uassert( 10032 , "db name too long", L < 64 );
}
newDb = namespaceIndex.exists();
profile = 0;
profileName = name + ".system.profile";
{
vector<string> others;
getDatabaseNames( others , path );
for ( unsigned i=0; i<others.size(); i++ ){
if ( strcasecmp( others[i].c_str() , nm ) )
continue;
if ( strcmp( others[i].c_str() , nm ) == 0 )
continue;
stringstream ss;
ss << "db already exists with different case other: [" << others[i] << "] me [" << nm << "]";
uasserted( DatabaseDifferCaseCode , ss.str() );
}
}
// If already exists, open. Otherwise behave as if empty until
// there's a write, then open.
if ( ! newDb || cmdLine.defaultProfile ) {
namespaceIndex.init();
if( _openAllFiles )
openAllFiles();
}
magic = 781231;
}
bool Database::setProfilingLevel( int newLevel , string& errmsg ){
if ( profile == newLevel )
return true;
if ( newLevel < 0 || newLevel > 2 ){
errmsg = "profiling level has to be >=0 and <= 2";
return false;
}
if ( newLevel == 0 ){
profile = 0;
return true;
}
assert( cc().database() == this );
if ( ! namespaceIndex.details( profileName.c_str() ) ){
log(1) << "creating profile ns: " << profileName << endl;
BSONObjBuilder spec;
spec.appendBool( "capped", true );
spec.append( "size", 131072.0 );
if ( ! userCreateNS( profileName.c_str(), spec.done(), errmsg , true ) ){
return false;
}
}
profile = newLevel;
return true;
}
void Database::finishInit(){
if ( cmdLine.defaultProfile == profile )
return;
string errmsg;
massert( 12506 , errmsg , setProfilingLevel( cmdLine.defaultProfile , errmsg ) );
}
bool Database::validDBName( const string& ns ){
if ( ns.size() == 0 || ns.size() > 64 )
return false;
size_t good = strcspn( ns.c_str() , "/\\. \"" );
return good == ns.size();
}
void Database::flushFiles( bool sync ){
dbMutex.assertAtLeastReadLocked();
for ( unsigned i=0; i<files.size(); i++ ){
files[i]->flush( sync );
}
}
} // namespace mongo
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