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47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#ifndef IDETOUR_H
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#define IDETOUR_H
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#define ADDDETOUR(x,y) static std::size_t dummy_reg_##y = AddDetour( new x() );
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#define XREGISTER(x,y) ADDDETOUR(x, y)
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#define REGISTER(x) XREGISTER(x, __COUNTER__)
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class IDetour
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{
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public:
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virtual ~IDetour() { ; }
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virtual void GetAdr(void) const = 0;
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virtual void GetFun(void) const = 0;
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virtual void GetVar(void) const = 0;
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virtual void GetCon(void) const = 0;
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virtual void Attach(void) const = 0;
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virtual void Detach(void) const = 0;
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};
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class VDetour : public IDetour
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{
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virtual void GetAdr(void) const { }
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virtual void GetFun(void) const { }
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virtual void GetVar(void) const { }
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virtual void GetCon(void) const { }
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virtual void Attach(void) const { }
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virtual void Detach(void) const { }
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};
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inline static std::vector<IDetour*> g_DetourVector;
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inline static std::unordered_set<IDetour*> g_DetourSet;
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inline std::size_t AddDetour(IDetour* pDetour)
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{
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IDetour* pVFTable = reinterpret_cast<IDetour**>(pDetour)[0];
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auto p = g_DetourSet.insert(pVFTable); // Only register if VFTable isn't already registered.
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assert(p.second); // Code bug: duplicate registration!!! (called 'REGISTER(...)' from a header file?).
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p.second ? g_DetourVector.push_back(pDetour) : delete pDetour;
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return g_DetourVector.size();
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}
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REGISTER(VDetour);
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#endif // IDETOUR_H
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