added wxStackWalker class

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31416 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/stackwalk.h

@@ -0,0 +1,99 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/msw/stackwalk.h
+// Purpose:     wxStackWalker for MSW
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     2005-01-08
+// RCS-ID:      $Id$
+// Copyright:   (c) 2005 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_MSW_STACKWALK_H_
+#define _WX_MSW_STACKWALK_H_
+
+// these structs are declared in windows headers
+struct _CONTEXT;
+struct _EXCEPTION_POINTERS;
+
+// and these in dbghelp.h
+struct _SYMBOL_INFO;
+
+// ----------------------------------------------------------------------------
+// wxStackFrame
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxStackFrame : public wxStackFrameBase
+{
+private:
+    wxStackFrame *ConstCast() const
+        { return wx_const_cast(wxStackFrame *, this); }
+
+    size_t DoGetParamCount() const { return m_paramTypes.GetCount(); }
+
+public:
+    wxStackFrame(size_t level, void *address, size_t addrFrame)
+        : wxStackFrameBase(level, address)
+    {
+        m_hasName =
+        m_hasLocation = false;
+
+        m_addrFrame = addrFrame;
+    }
+
+    virtual size_t GetParamCount() const
+    {
+        ConstCast()->OnGetParam();
+        return DoGetParamCount();
+    }
+
+    virtual bool
+    GetParam(size_t n, wxString *type, wxString *name, wxString *value) const;
+
+    // callback used by OnGetParam(), don't call directly
+    void OnParam(_SYMBOL_INFO *pSymInfo);
+
+protected:
+    virtual void OnGetName();
+    virtual void OnGetLocation();
+
+    void OnGetParam();
+
+
+    // helper for debug API: it wants to have addresses as DWORDs
+    size_t GetSymAddr() const
+    {
+        return wx_reinterpret_cast(size_t, m_address);
+    }
+
+private:
+    bool m_hasName,
+         m_hasLocation;
+
+    size_t m_addrFrame;
+
+    wxArrayString m_paramTypes,
+                  m_paramNames,
+                  m_paramValues;
+};
+
+// ----------------------------------------------------------------------------
+// wxStackWalker
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxStackWalker : public wxStackWalkerBase
+{
+public:
+    wxStackWalker() { }
+
+    virtual void Walk(size_t skip = 1);
+    virtual void WalkFromException();
+
+
+    // enumerate stack frames from the given context
+    void WalkFrom(const _CONTEXT *ctx, size_t skip = 1);
+    void WalkFrom(const _EXCEPTION_POINTERS *ep, size_t skip = 1);
+};
+
+#endif // _WX_MSW_STACKWALK_H_
+