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mongodb/db/introspect.h
2008-07-20 17:37:33 -04:00

62 lines
1.5 KiB
C++

// introspect.h
// system management stuff.
/**
* 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 "../stdafx.h"
#include "jsobj.h"
#include "pdfile.h"
auto_ptr<Cursor> getSpecialCursor(const char *ns);
class SingleResultObjCursor : public Cursor {
int i;
protected:
JSObjBuilder b;
void reg(const char *as); /* register as a certain namespace */
public:
SingleResultObjCursor() { i = 0; }
virtual bool ok() { return i == 0; }
virtual Record* _current() { assert(false); return 0; }
virtual DiskLoc currLoc() { assert(false); return DiskLoc(); }
virtual void fill() = 0;
virtual JSObj current() {
assert(i == 0);
fill();
return b.done();
}
virtual bool advance() {
i++;
return false;
}
virtual const char * toString() { return "SingleResultObjCursor"; }
};
/* --- profiling --------------------------------------------
do when client->profile is set
*/
void profile(const char *str,
int millis);