Class RemoteObject

src/remote/remote.h:796–834

Makes it possible to safely store all handles in single array

// Makes it possible to safely store all handles in single array
class RemoteObject
{
private:
	union {
		Rdb* rdb;
		Rtr* rtr;
		Rbl* rbl;
		Rrq* rrq;
		Rsr* rsr;
	} ptr;

public:
	RemoteObject() { ptr.rdb = 0; }

	template <typename R>
	R* get(R* r)
	{
		if (!r || !r->checkHandle())
		{
			Firebird::status_exception::raise(Firebird::Arg::Gds(R::badHandle()));
		}
		return r;
	}

	void operator=(Rdb* v) { ptr.rdb = v; }
	void operator=(Rtr* v) { ptr.rtr = v; }
	void operator=(Rbl* v) { ptr.rbl = v; }
	void operator=(Rrq* v) { ptr.rrq = v; }
	void operator=(Rsr* v) { ptr.rsr = v; }

	operator Rdb*() { return get(ptr.rdb); }
	operator Rtr*() { return get(ptr.rtr); }
	operator Rbl*() { return get(ptr.rbl); }
	operator Rrq*() { return get(ptr.rrq); }
	operator Rsr*() { return get(ptr.rsr); }

	bool isMissing() const { return ptr.rdb == NULL; }
	void release() { ptr.rdb = 0; }
};