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Sandboxie/SandboxiePlus/MiscHelpers/Archive/7z/CPP/Common/MyCom.h

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// MyCom.h
#ifndef ZIP7_INC_MY_COM_H
#define ZIP7_INC_MY_COM_H
#include "MyWindows.h"
#include "MyTypes.h"
template <class T>
class CMyComPtr
{
T* _p;
public:
CMyComPtr(): _p(NULL) {}
CMyComPtr(T* p) throw() { if ((_p = p) != NULL) p->AddRef(); }
CMyComPtr(const CMyComPtr<T>& lp) throw() { if ((_p = lp._p) != NULL) _p->AddRef(); }
~CMyComPtr() { if (_p) _p->Release(); }
void Release() { if (_p) { _p->Release(); _p = NULL; } }
operator T*() const { return (T*)_p; }
// T& operator*() const { return *_p; }
T** operator&() { return &_p; }
T* operator->() const { return _p; }
T* operator=(T* p)
{
if (p)
p->AddRef();
if (_p)
_p->Release();
_p = p;
return p;
}
T* operator=(const CMyComPtr<T>& lp) { return (*this = lp._p); }
bool operator!() const { return (_p == NULL); }
// bool operator==(T* pT) const { return _p == pT; }
void Attach(T* p2)
{
Release();
_p = p2;
}
T* Detach()
{
T* pt = _p;
_p = NULL;
return pt;
}
#ifdef _WIN32
HRESULT CoCreateInstance(REFCLSID rclsid, REFIID iid, LPUNKNOWN pUnkOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
{
return ::CoCreateInstance(rclsid, pUnkOuter, dwClsContext, iid, (void**)&_p);
}
#endif
/*
HRESULT CoCreateInstance(LPCOLESTR szProgID, LPUNKNOWN pUnkOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
{
CLSID clsid;
HRESULT hr = CLSIDFromProgID(szProgID, &clsid);
ATLASSERT(_p == NULL);
if (SUCCEEDED(hr))
hr = ::CoCreateInstance(clsid, pUnkOuter, dwClsContext, __uuidof(T), (void**)&_p);
return hr;
}
*/
template <class Q>
HRESULT QueryInterface(REFGUID iid, Q** pp) const throw()
{
// if (*pp) throw 20220216; // for debug
return _p->QueryInterface(iid, (void**)pp);
}
};
#define Z7_DECL_CMyComPtr_QI_FROM(i, v, unk) \
CMyComPtr<i> v; (unk)->QueryInterface(IID_ ## i, (void **)&v);
//////////////////////////////////////////////////////////
inline HRESULT StringToBstr(LPCOLESTR src, BSTR *bstr)
{
*bstr = ::SysAllocString(src);
return (*bstr) ? S_OK : E_OUTOFMEMORY;
}
class CMyComBSTR
{
BSTR m_str;
Z7_CLASS_NO_COPY(CMyComBSTR)
public:
CMyComBSTR(): m_str(NULL) {}
~CMyComBSTR() { ::SysFreeString(m_str); }
BSTR* operator&() { return &m_str; }
operator LPCOLESTR() const { return m_str; }
// operator bool() const { return m_str != NULL; }
// bool operator!() const { return m_str == NULL; }
void Wipe_and_Free()
{
if (m_str)
{
memset(m_str, 0, ::SysStringLen(m_str) * sizeof(*m_str));
Empty();
}
}
private:
// operator BSTR() const { return m_str; }
CMyComBSTR(LPCOLESTR src) { m_str = ::SysAllocString(src); }
// CMyComBSTR(int nSize) { m_str = ::SysAllocStringLen(NULL, nSize); }
// CMyComBSTR(int nSize, LPCOLESTR sz) { m_str = ::SysAllocStringLen(sz, nSize); }
// CMyComBSTR(const CMyComBSTR& src) { m_str = src.MyCopy(); }
/*
CMyComBSTR(REFGUID src)
{
LPOLESTR szGuid;
StringFromCLSID(src, &szGuid);
m_str = ::SysAllocString(szGuid);
CoTaskMemFree(szGuid);
}
*/
/*
CMyComBSTR& operator=(const CMyComBSTR& src)
{
if (m_str != src.m_str)
{
if (m_str)
::SysFreeString(m_str);
m_str = src.MyCopy();
}
return *this;
}
*/
CMyComBSTR& operator=(LPCOLESTR src)
{
::SysFreeString(m_str);
m_str = ::SysAllocString(src);
return *this;
}
unsigned Len() const { return ::SysStringLen(m_str); }
BSTR MyCopy() const
{
// We don't support Byte BSTRs here
return ::SysAllocStringLen(m_str, ::SysStringLen(m_str));
/*
UINT byteLen = ::SysStringByteLen(m_str);
BSTR res = ::SysAllocStringByteLen(NULL, byteLen);
if (res && byteLen != 0 && m_str)
memcpy(res, m_str, byteLen);
return res;
*/
}
/*
void Attach(BSTR src) { m_str = src; }
BSTR Detach()
{
BSTR s = m_str;
m_str = NULL;
return s;
}
*/
void Empty()
{
::SysFreeString(m_str);
m_str = NULL;
}
};
class CMyComBSTR_Wipe: public CMyComBSTR
{
Z7_CLASS_NO_COPY(CMyComBSTR_Wipe)
public:
CMyComBSTR_Wipe(): CMyComBSTR() {}
~CMyComBSTR_Wipe() { Wipe_and_Free(); }
};
/*
If CMyUnknownImp doesn't use virtual destructor, the code size is smaller.
But if some class_1 derived from CMyUnknownImp
uses Z7_COM_ADDREF_RELEASE and IUnknown::Release()
and some another class_2 is derived from class_1,
then class_1 must use virtual destructor:
virtual ~class_1();
In that case, class_1::Release() calls correct destructor of class_2.
We can use virtual ~CMyUnknownImp() to disable warning
"class has virtual functions, but destructor is not virtual".
Also we can use virtual ~IUnknown() {} in MyWindows.h
*/
class CMyUnknownImp
{
Z7_CLASS_NO_COPY(CMyUnknownImp)
protected:
ULONG _m_RefCount;
CMyUnknownImp(): _m_RefCount(0) {}
#ifdef _WIN32
#if defined(__GNUC__) || defined(__clang__)
// virtual ~CMyUnknownImp() {} // to disable GCC/CLANG warnings
#endif
#endif
};
#define Z7_COM_QI_BEGIN \
private: STDMETHOD(QueryInterface) (REFGUID iid, void **outObject) throw() Z7_override Z7_final \
{ *outObject = NULL;
#define Z7_COM_QI_ENTRY(i) \
else if (iid == IID_ ## i) \
{ i *ti = this; *outObject = ti; }
// { *outObject = (void *)(i *)this; }
#define Z7_COM_QI_ENTRY_UNKNOWN_0 \
if (iid == IID_IUnknown) \
{ IUnknown *tu = this; *outObject = tu; }
#define Z7_COM_QI_ENTRY_UNKNOWN(i) \
if (iid == IID_IUnknown) \
{ i *ti = this; IUnknown *tu = ti; *outObject = tu; }
// { *outObject = (void *)(IUnknown *)(i *)this; }
#define Z7_COM_QI_BEGIN2(i) \
Z7_COM_QI_BEGIN \
Z7_COM_QI_ENTRY_UNKNOWN(i) \
Z7_COM_QI_ENTRY(i)
#define Z7_COM_QI_END \
else return E_NOINTERFACE; \
++_m_RefCount; /* AddRef(); */ return S_OK; }
#define Z7_COM_ADDREF_RELEASE \
private: \
STDMETHOD_(ULONG, AddRef)() throw() Z7_override Z7_final \
{ return ++_m_RefCount; } \
STDMETHOD_(ULONG, Release)() throw() Z7_override Z7_final \
{ if (--_m_RefCount != 0) return _m_RefCount; delete this; return 0; } \
#define Z7_COM_UNKNOWN_IMP_SPEC(i) \
Z7_COM_QI_BEGIN \
i \
Z7_COM_QI_END \
Z7_COM_ADDREF_RELEASE
#define Z7_COM_UNKNOWN_IMP_0 \
Z7_COM_QI_BEGIN \
Z7_COM_QI_ENTRY_UNKNOWN_0 \
Z7_COM_QI_END \
Z7_COM_ADDREF_RELEASE
#define Z7_COM_UNKNOWN_IMP_1(i) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i) \
Z7_COM_QI_ENTRY(i) \
)
#define Z7_COM_UNKNOWN_IMP_2(i1, i2) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
)
#define Z7_COM_UNKNOWN_IMP_3(i1, i2, i3) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
Z7_COM_QI_ENTRY(i3) \
)
#define Z7_COM_UNKNOWN_IMP_4(i1, i2, i3, i4) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
Z7_COM_QI_ENTRY(i3) \
Z7_COM_QI_ENTRY(i4) \
)
#define Z7_COM_UNKNOWN_IMP_5(i1, i2, i3, i4, i5) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
Z7_COM_QI_ENTRY(i3) \
Z7_COM_QI_ENTRY(i4) \
Z7_COM_QI_ENTRY(i5) \
)
#define Z7_COM_UNKNOWN_IMP_6(i1, i2, i3, i4, i5, i6) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
Z7_COM_QI_ENTRY(i3) \
Z7_COM_QI_ENTRY(i4) \
Z7_COM_QI_ENTRY(i5) \
Z7_COM_QI_ENTRY(i6) \
)
#define Z7_COM_UNKNOWN_IMP_7(i1, i2, i3, i4, i5, i6, i7) \
Z7_COM_UNKNOWN_IMP_SPEC( \
Z7_COM_QI_ENTRY_UNKNOWN(i1) \
Z7_COM_QI_ENTRY(i1) \
Z7_COM_QI_ENTRY(i2) \
Z7_COM_QI_ENTRY(i3) \
Z7_COM_QI_ENTRY(i4) \
Z7_COM_QI_ENTRY(i5) \
Z7_COM_QI_ENTRY(i6) \
Z7_COM_QI_ENTRY(i7) \
)
#define Z7_IFACES_IMP_UNK_1(i1) \
Z7_COM_UNKNOWN_IMP_1(i1) \
Z7_IFACE_COM7_IMP(i1) \
#define Z7_IFACES_IMP_UNK_2(i1, i2) \
Z7_COM_UNKNOWN_IMP_2(i1, i2) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
#define Z7_IFACES_IMP_UNK_3(i1, i2, i3) \
Z7_COM_UNKNOWN_IMP_3(i1, i2, i3) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
#define Z7_IFACES_IMP_UNK_4(i1, i2, i3, i4) \
Z7_COM_UNKNOWN_IMP_4(i1, i2, i3, i4) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
Z7_IFACE_COM7_IMP(i4) \
#define Z7_IFACES_IMP_UNK_5(i1, i2, i3, i4, i5) \
Z7_COM_UNKNOWN_IMP_5(i1, i2, i3, i4, i5) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
Z7_IFACE_COM7_IMP(i4) \
Z7_IFACE_COM7_IMP(i5) \
#define Z7_IFACES_IMP_UNK_6(i1, i2, i3, i4, i5, i6) \
Z7_COM_UNKNOWN_IMP_6(i1, i2, i3, i4, i5, i6) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
Z7_IFACE_COM7_IMP(i4) \
Z7_IFACE_COM7_IMP(i5) \
Z7_IFACE_COM7_IMP(i6) \
#define Z7_CLASS_IMP_COM_0(c) \
Z7_class_final(c) : \
public IUnknown, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_0 \
private:
#define Z7_CLASS_IMP_COM_1(c, i1) \
Z7_class_final(c) : \
public i1, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_1(i1) \
private:
#define Z7_CLASS_IMP_COM_2(c, i1, i2) \
Z7_class_final(c) : \
public i1, \
public i2, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_2(i1, i2) \
private:
#define Z7_CLASS_IMP_COM_3(c, i1, i2, i3) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_3(i1, i2, i3) \
private:
#define Z7_CLASS_IMP_COM_4(c, i1, i2, i3, i4) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public i4, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_4(i1, i2, i3, i4) \
private:
#define Z7_CLASS_IMP_COM_5(c, i1, i2, i3, i4, i5) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public i4, \
public i5, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_5(i1, i2, i3, i4, i5) \
private:
#define Z7_CLASS_IMP_COM_6(c, i1, i2, i3, i4, i5, i6) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public i4, \
public i5, \
public i6, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_6(i1, i2, i3, i4, i5, i6) \
private:
/*
#define Z7_CLASS_IMP_NOQIB_0(c) \
Z7_class_final(c) : \
public IUnknown, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_0 \
private:
*/
#define Z7_CLASS_IMP_NOQIB_1(c, i1) \
Z7_class_final(c) : \
public i1, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_0 \
Z7_IFACE_COM7_IMP(i1) \
private:
#define Z7_CLASS_IMP_NOQIB_2(c, i1, i2) \
Z7_class_final(c) : \
public i1, \
public i2, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_1(i2) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
private:
#define Z7_CLASS_IMP_NOQIB_3(c, i1, i2, i3) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_2(i2, i3) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
private:
#define Z7_CLASS_IMP_NOQIB_4(c, i1, i2, i3, i4) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public i4, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_3(i2, i3, i4) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
Z7_IFACE_COM7_IMP(i4) \
/*
#define Z7_CLASS_IMP_NOQIB_5(c, i1, i2, i3, i4, i5) \
Z7_class_final(c) : \
public i1, \
public i2, \
public i3, \
public i4, \
public i5, \
public CMyUnknownImp { \
Z7_COM_UNKNOWN_IMP_4(i2, i3, i4, i5) \
Z7_IFACE_COM7_IMP(i1) \
Z7_IFACE_COM7_IMP(i2) \
Z7_IFACE_COM7_IMP(i3) \
Z7_IFACE_COM7_IMP(i4) \
Z7_IFACE_COM7_IMP(i5) \
*/
#define Z7_CLASS_IMP_IInStream(c) \
class c Z7_final : \
public IInStream, \
public CMyUnknownImp { \
Z7_IFACES_IMP_UNK_2(ISequentialInStream, IInStream) \
#define k_My_HRESULT_WritingWasCut 0x20000010
#endif
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