Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/Common/MyCom.h

-// MyCom.h
-
-#ifndef __MYCOM_H
-#define __MYCOM_H
-
-#include "MyWindows.h"
-
-#ifndef RINOK
-#define RINOK(x) { HRESULT __result_ = (x); if (__result_ != S_OK) return __result_; }
-#endif
-
-template <class T>
-class CMyComPtr
-{
-  T* _p;
-public:
-  // typedef T _PtrClass;
-  CMyComPtr() { _p = NULL;}
-  CMyComPtr(T* p) {if ((_p = p) != NULL) p->AddRef(); }
-  CMyComPtr(const CMyComPtr<T>& lp)
-  {
-    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 != 0)
-      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; }
-  // Compare two objects for equivalence
-  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
-  {
-    return _p->QueryInterface(iid, (void**)pp);
-  }
-};
-
-//////////////////////////////////////////////////////////
-
-inline HRESULT StringToBstr(LPCOLESTR src, BSTR *bstr)
-{
-  *bstr = ::SysAllocString(src);
-  return (*bstr != 0) ? S_OK : E_OUTOFMEMORY;
-}
-
-class CMyComBSTR
-{
-public:
-  BSTR m_str;
-  CMyComBSTR(): m_str(NULL) {}
-  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() { ::SysFreeString(m_str); }
-  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 int Length() const { return ::SysStringLen(m_str); }
-  operator BSTR() const { return m_str; }
-  BSTR* operator&() { return &m_str; }
-  BSTR MyCopy() const
-  {
-    int byteLen = ::SysStringByteLen(m_str);
-    BSTR res = ::SysAllocStringByteLen(NULL, byteLen);
-    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;
-  }
-  bool operator!() const {  return (m_str == NULL); }
-};
-
-//////////////////////////////////////////////////////////
-
-class CMyUnknownImp
-{
-public:
-  ULONG __m_RefCount;
-  CMyUnknownImp(): __m_RefCount(0) {}
-};
-
-#define MY_QUERYINTERFACE_BEGIN STDMETHOD(QueryInterface) \
-    (REFGUID iid, void **outObject) {
-
-#define MY_QUERYINTERFACE_ENTRY(i) if (iid == IID_ ## i) \
-    { *outObject = (void *)(i *)this; AddRef(); return S_OK; }
-
-#define MY_QUERYINTERFACE_ENTRY_UNKNOWN(i) if (iid == IID_IUnknown) \
-    { *outObject = (void *)(IUnknown *)(i *)this; AddRef(); return S_OK; }
-
-#define MY_QUERYINTERFACE_BEGIN2(i) MY_QUERYINTERFACE_BEGIN \
-    MY_QUERYINTERFACE_ENTRY_UNKNOWN(i) \
-    MY_QUERYINTERFACE_ENTRY(i)
-
-#define MY_QUERYINTERFACE_END return E_NOINTERFACE; }
-
-#define MY_ADDREF_RELEASE \
-STDMETHOD_(ULONG, AddRef)() { return ++__m_RefCount; } \
-STDMETHOD_(ULONG, Release)() { if (--__m_RefCount != 0)  \
-  return __m_RefCount; delete this; return 0; }
-
-#define MY_UNKNOWN_IMP_SPEC(i) \
-  MY_QUERYINTERFACE_BEGIN \
-  i \
-  MY_QUERYINTERFACE_END \
-  MY_ADDREF_RELEASE
-
-
-#define MY_UNKNOWN_IMP MY_QUERYINTERFACE_BEGIN \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(IUnknown) \
-  MY_QUERYINTERFACE_END \
-  MY_ADDREF_RELEASE
-
-#define MY_UNKNOWN_IMP1(i) MY_UNKNOWN_IMP_SPEC( \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(i) \
-  MY_QUERYINTERFACE_ENTRY(i) \
-  )
-
-#define MY_UNKNOWN_IMP2(i1, i2) MY_UNKNOWN_IMP_SPEC( \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(i1) \
-  MY_QUERYINTERFACE_ENTRY(i1) \
-  MY_QUERYINTERFACE_ENTRY(i2) \
-  )
-
-#define MY_UNKNOWN_IMP3(i1, i2, i3) MY_UNKNOWN_IMP_SPEC( \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(i1) \
-  MY_QUERYINTERFACE_ENTRY(i1) \
-  MY_QUERYINTERFACE_ENTRY(i2) \
-  MY_QUERYINTERFACE_ENTRY(i3) \
-  )
-
-#define MY_UNKNOWN_IMP4(i1, i2, i3, i4) MY_UNKNOWN_IMP_SPEC( \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(i1) \
-  MY_QUERYINTERFACE_ENTRY(i1) \
-  MY_QUERYINTERFACE_ENTRY(i2) \
-  MY_QUERYINTERFACE_ENTRY(i3) \
-  MY_QUERYINTERFACE_ENTRY(i4) \
-  )
-
-#define MY_UNKNOWN_IMP5(i1, i2, i3, i4, i5) MY_UNKNOWN_IMP_SPEC( \
-  MY_QUERYINTERFACE_ENTRY_UNKNOWN(i1) \
-  MY_QUERYINTERFACE_ENTRY(i1) \
-  MY_QUERYINTERFACE_ENTRY(i2) \
-  MY_QUERYINTERFACE_ENTRY(i3) \
-  MY_QUERYINTERFACE_ENTRY(i4) \
-  MY_QUERYINTERFACE_ENTRY(i5) \
-  )
-
-#endif