214635bfc1
(http://bugs.debian.org/413432) git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@823 7ec92016-0320-0410-acc4-a06ded1c099a
83 lines
2 KiB
C++
83 lines
2 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
// The Loki Library
|
|
// Copyright (c) 2005 by Curtis Krauskopf
|
|
// Copyright (c) 2005 by Peter Kuemmel
|
|
//
|
|
// Code covered by the MIT License
|
|
// The authors make no representations about the suitability of this software
|
|
// for any purpose. It is provided "as is" without express or implied warranty.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// $Id$
|
|
|
|
|
|
// Show an example of a Loki policy that uses DeletableSingleton.
|
|
//
|
|
// Expected output:
|
|
//
|
|
// LogClass::LogClass()
|
|
// LogClass singleton instantiated
|
|
// Going to manually delete LogBook.
|
|
// LogClass::~LogClass()
|
|
// LogClass::LogClass()
|
|
// LogClass reinstantiated.
|
|
// Going to terminate program now.
|
|
// LogClass::~LogClass()
|
|
//
|
|
|
|
#include <iostream>
|
|
#include <loki/Singleton.h> // for Loki::SingletonHolder
|
|
|
|
using namespace std; // okay for small programs
|
|
using namespace Loki; // okay for small programs
|
|
|
|
// A singleton LogClass object derived from the Example class.
|
|
// Its longevity is set by the user on the command line.
|
|
//
|
|
class LogClass
|
|
{
|
|
public:
|
|
LogClass()
|
|
{
|
|
print("LogClass::LogClass()");
|
|
}
|
|
~LogClass()
|
|
{
|
|
print("LogClass::~LogClass()");
|
|
}
|
|
void print(const char *s)
|
|
{
|
|
cout << s << endl;
|
|
}
|
|
};
|
|
|
|
typedef SingletonHolder<LogClass, CreateUsingNew, DeletableSingleton> LogBook;
|
|
|
|
class Example
|
|
{
|
|
public:
|
|
void method()
|
|
{
|
|
cout << "test\n";
|
|
}
|
|
};
|
|
|
|
|
|
int main()
|
|
{
|
|
// Instantiate both singletons by calling them...
|
|
LogBook::Instance().print("LogClass singleton instantiated");
|
|
LogBook::Instance().print("Going to manually delete LogBook.");
|
|
|
|
DeletableSingleton<LogClass>::GracefulDelete();
|
|
|
|
LogBook::Instance().print("LogClass reinstantiated.");
|
|
LogBook::Instance().print("Going to terminate program now.");
|
|
|
|
#if defined(__BORLANDC__) || defined(_MSC_VER)
|
|
system("PAUSE");
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|