Creating Dynamic Singletons & the Loki Library
By Curtis Krauskopf, April 01, 2005
The Loki library is flexible enough to provide automatic deletion for most policies and provide automatic deletion for objects allocated with new that are not otherwise deleted by users.
April, 2005: Creating Dynamic Singletons & the Loki Library
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class Log {
public:
Log() { echo("Log c'tor"); }
~Log() { echo("Log d'tor"); }
void echo(const char *s) { cout << s << endl; }
};
typedef SingletonHolder<
Log, CreateUsingNew, PhoenixSingleton
> log;
class Example {
public:
Example() { echo("Example c'tor"); }
~Example() {
echo("Example d'tor starting");
log::Instance().echo("Log: 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, 1, &Loki::Private::Deleter<Example>::Delete
);
log::Instance().echo("Log now instantiated.");
return 0;
}
