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authorMike Buland <eichlan@xagasoft.com>2006-05-03 02:56:51 +0000
committerMike Buland <eichlan@xagasoft.com>2006-05-03 02:56:51 +0000
commit33fef4a17290e7872293d8cc173bec826f24001c (patch)
treefc428c53b45fe17d2f1d35c48e9340006b3fd694 /src/singleton.h
parent1587314e55ae761983803aa828addc6854bf4ad4 (diff)
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Added the new singleton class template. Very cool, now I need to switch
all my singletons to using it.
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1#ifndef SINGLETON_H
2#define SINGLETON_H
3
4#include <stdio.h>
5
6/**
7 * Provides singleton functionality in a modular sort of way. Make this the
8 * base class of any other class and you immediately gain singleton
9 * functionality. Be sure to make your constructor and various functions use
10 * intellegent scoping. Cleanup and instantiation are performed automatically
11 * for you at first use and program exit. There are two things that you must
12 * do when using this template, first is to inherit from it with the name of
13 * your class filling in for T and then make this class a friend of your class.
14 *@code
15 * // Making the Single Singleton:
16 * class Single : public Singleton<Single>
17 * {
18 * friend class Singleton<Single>;
19 * protected:
20 * Single();
21 * ...
22 * };
23 @endcode
24 * You can still add public functions and variables to your new Singleton child
25 * class, but your constructor should be protected (hence the need for the
26 * friend decleration).
27 *@author Mike Buland
28 */
29template <class T>
30class Singleton
31{
32protected:
33 Singleton() {};
34
35private:
36 Singleton( const Singleton& );
37
38public:
39 static T &getInstance()
40 {
41 static T i;
42 return i;
43 }
44};
45
46#endif