icinga2/base/delegate.h

41 lines
1008 B
C++

#ifndef DELEGATE_H
#define DELEGATE_H
namespace icinga
{
template<class TObject, class TArgs>
int delegate_fwd(int (TObject::*function)(TArgs), weak_ptr<TObject> wref, const TArgs& args)
{
shared_ptr<TObject> ref = wref.lock();
if (ref.get() == NULL)
return -1;
return (ref.get()->*function)(args);
}
template<class TObject, class TArgs>
function<int (TArgs)> bind_weak(int (TObject::*function)(TArgs), const weak_ptr<TObject>& wref)
{
return bind<int>(delegate_fwd<TObject, TArgs>, function, wref, _1);
}
template<class TObject, class TArgs>
function<int (TArgs)> bind_weak(int (TObject::*function)(TArgs), shared_ptr<TObject> ref)
{
weak_ptr<TObject> wref = weak_ptr<TObject>(ref);
return bind_weak(function, wref);
}
template<class TObject, class TArgs>
function<int (TArgs)> bind_weak(int (TObject::*function)(TArgs), shared_ptr<Object> ref)
{
weak_ptr<TObject> wref = weak_ptr<TObject>(static_pointer_cast<TObject>(ref));
return bind_weak(function, wref);
}
}
#endif /* DELEGATE_H */