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////////////////////////////////////////////////////////////////////////////////
// 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: Phoenix.cpp 760 2006-10-17 20:36:13Z syntheticpp $
// A singleton LogClass object that resurrects itself after
// it has been automatically destroyed during program
// termination. When a dead-reference to the LogClass
// singleton is detected, it is resurrected automatically.
//
// Expected output:
// Example c'tor
// LogClass c'tor
// LogClass now instantiated.
// LogClass d'tor
// Example d'tor starting
// LogClass c'tor
// LogClass: inside Example d'tor
// Example d'tor finished
//
// The last line of the output only appears when this
// program is compiled with the ATEXIT_FIXED symbol
// defined (see the Loki library and the CUJ article).
//
#include <iostream>
#include <loki/Singleton.h> // for Loki::SingletonHolder
using namespace std; // okay for small programs
using namespace Loki; // okay for small programs
class LogClass
{
public:
LogClass()
{
echo("LogClass c'tor");
}
~LogClass()
{
echo("LogClass d'tor");
}
void echo(const char *s)
{
cout << s << endl;
}
};
typedef SingletonHolder<LogClass, CreateUsingNew, PhoenixSingleton> LogBook;
// A generic example class that stores and echoes a const char.
//
class Example
{
public:
Example()
{
echo("Example c'tor");
}
~Example()
{
echo("Example d'tor starting");
LogBook::Instance().echo("LogClass: inside Example d'tor");
echo("Example d'tor finished");
}
void echo(const char *s)
{
cout << s << endl;
}
};
int main(int argc, char* argv[])
{
Example *example = new Example();
SetLongevity<Example, void (*)(Example*)>(example, 1, &Loki::Private::Deleter<Example>::Delete);
LogBook::Instance().echo("LogClass now instantiated.");
#if defined(__BORLANDC__) || defined(_MSC_VER)
system("PAUSE");
#endif
return 0;
}
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