icinga2/base/delegate.h

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#ifndef DELEGATE_H
#define DELEGATE_H
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namespace icinga
{
template<class TObject, class TArgs>
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int delegate_fwd(int (TObject::*function)(TArgs), weak_ptr<TObject> wref, TArgs args)
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{
shared_ptr<TObject> ref = wref.lock();
if (!ref)
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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)
{
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return bind(&delegate_fwd<TObject, TArgs>, function, wref, _1);
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}
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 */