/usr/include/eiskaltdcpp/dcpp/Singleton.h is in libeiskaltdcpp-dev 2.2.9-4.1.
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) 2001-2012 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "debug.h"
namespace dcpp {
class ISingleton{
public:
ISingleton(){}
virtual void release() = 0;
};
template<typename T>
class Singleton: public ISingleton {
public:
Singleton() { }
virtual ~Singleton() { }
static T* getInstance() {
return instance;
}
static void newInstance() {
if(instance)
delete instance;
instance = new T();
}
static void deleteInstance() {
delete instance;
instance = NULL;
}
virtual void release(){
deleteInstance();
}
protected:
static T* instance;
private:
Singleton(const Singleton&);
Singleton& operator=(const Singleton&);
};
template<class T> T* Singleton<T>::instance = NULL;
} // namespace dcpp
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