// Internal Worker for GetStackWalkCurrentContext().
void DacDbiInterfaceImpl::GetStackWalkCurrentContext(StackFrameIterator * pIter,
DT_CONTEXT * pContext)
{
// convert the current REGDISPLAY to a CONTEXT
CrawlFrame * pCF = &(pIter->m_crawl);
UpdateContextFromRegDisp(pCF->GetRegisterSet(), reinterpret_cast<T_CONTEXT *>(pContext));
}
HRESULT STDMETHODCALLTYPE
ClrDataStackWalk::GetContext(
/* [in] */ ULONG32 contextFlags,
/* [in] */ ULONG32 contextBufSize,
/* [out] */ ULONG32 *contextSize,
/* [size_is][out] */ BYTE contextBuf[ ])
{
HRESULT status;
if (contextSize)
{
*contextSize = ContextSizeForFlags(contextFlags);
}
if (!CheckContextSizeForFlags(contextBufSize, contextFlags))
{
return E_INVALIDARG;
}
DAC_ENTER_SUB(m_dac);
EX_TRY
{
if (!m_frameIter.IsValid())
{
status = S_FALSE;
}
else
{
*(PT_CONTEXT)contextBuf = m_context;
UpdateContextFromRegDisp(&m_regDisp, (PT_CONTEXT)contextBuf);
status = S_OK;
}
}
EX_CATCH
{
if (!DacExceptionFilter(GET_EXCEPTION(), m_dac, &status))
{
EX_RETHROW;
}
}
EX_END_CATCH(SwallowAllExceptions)
DAC_LEAVE();
return status;
}
