731 lines
18 KiB
C++
731 lines
18 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: debug.cpp
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//
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// Provides printf style debug output
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#include <stdio.h>
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#include <comctrlp.h>
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#pragma hdrstop
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#ifdef DEBUG
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DWORD g_dwTraceMask = 0;
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DWORD g_tlsDebug = 0xffffffffL;
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#define MAX_CALL_DEPTH 64
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#define BUFFER_SIZE 2048
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class CDebugStack
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{
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private:
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DWORD m_dwThreadID;
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LONG m_cDepth;
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struct
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{
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BOOL fTracedYet;
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LPCTSTR pszFunctionName;
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DWORD dwMask;
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}
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m_CallStack[MAX_CALL_DEPTH];
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TCHAR m_szStringBuffer[BUFFER_SIZE];
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public:
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CDebugStack() : m_dwThreadID(GetCurrentThreadId()), m_cDepth(-1)
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{ ZeroMemory(&m_CallStack, SIZEOF(m_CallStack)); }
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public:
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void _Indent(LONG iDepth, LPCTSTR pszFormat, ...);
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void _vIndent(LONG iDepth, LPCTSTR pszFormat, va_list va);
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BOOL _TraceProlog(LONG iDepth, BOOL fForce);
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void _TraceEnter(DWORD dwMask, LPCTSTR pName);
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void _TraceLeave(void);
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void _Trace(BOOL bForce, LPCTSTR pszFormat, ...);
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void _vTrace(BOOL bForce, LPCTSTR pszFormat, va_list va);
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void _TraceGUID(LPCTSTR pPrefix, REFGUID rGUID);
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void _TraceAssert(int iLine, LPTSTR pFilename);
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};
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typedef CDebugStack *PDEBUGSTACK;
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class CDebugStackHolder
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{
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private:
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HDPA m_hDebugStackList;
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CRITICAL_SECTION m_csStackList;
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public:
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CDebugStackHolder() : m_hDebugStackList(NULL) { ExceptionPropagatingInitializeCriticalSection(&m_csStackList); }
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~CDebugStackHolder();
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public:
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void Add(PDEBUGSTACK pDebugStack);
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void Remove(PDEBUGSTACK pDebugStack);
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};
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typedef CDebugStackHolder *PDEBUGSTACKHOLDER;
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PDEBUGSTACKHOLDER g_pStackHolder = NULL;
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/*-----------------------------------------------------------------------------
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/ _Indent
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/ -------
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/ Output to the debug stream indented by n columns.
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/
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/ In:
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/ i = column to indent to.
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/ pszFormat -> string to be indented
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void CDebugStack::_Indent(LONG iDepth, LPCTSTR pszFormat, ...)
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{
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va_list va;
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va_start(va, pszFormat);
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_vIndent(iDepth, pszFormat, va);
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va_end(va);
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}
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void CDebugStack::_vIndent(LONG iDepth, LPCTSTR pszFormat, va_list va)
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{
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m_szStringBuffer[0] = TEXT('\0');
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wsprintf(m_szStringBuffer, TEXT("%08x "), m_dwThreadID);
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iDepth = min(iDepth, MAX_CALL_DEPTH - 1);
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for ( ; iDepth > 0 ; iDepth-- )
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lstrcat(m_szStringBuffer, TEXT(" "));
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wvsprintf(m_szStringBuffer + lstrlen(m_szStringBuffer), pszFormat, va);
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lstrcat(m_szStringBuffer, TEXT("\n"));
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OutputDebugString(m_szStringBuffer);
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}
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/*-----------------------------------------------------------------------------
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/ _TraceProlog
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/ -------------
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/ Handle the prolog to a prefix string, including outputting the
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/ function name if we haven't already.
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/
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/ In:
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/ iDepth = depth in the call stack
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/ fForce = ignore flags
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/
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/ Out:
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/ BOOL if trace output should be made
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/----------------------------------------------------------------------------*/
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BOOL CDebugStack::_TraceProlog(LONG iDepth, BOOL fForce)
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{
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if ( iDepth < 0 || iDepth >= MAX_CALL_DEPTH )
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return FALSE;
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if ( (g_dwTraceMask & m_CallStack[iDepth].dwMask) || fForce )
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{
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if ( !m_CallStack[iDepth].fTracedYet )
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{
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if ( iDepth > 0 )
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_TraceProlog(iDepth-1, TRUE);
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_Indent(iDepth, m_CallStack[iDepth].pszFunctionName);
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m_CallStack[iDepth].fTracedYet = TRUE;
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}
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return TRUE;
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}
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return FALSE;
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}
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/*-----------------------------------------------------------------------------
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/ _TraceEnter
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/ ------------
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/ Set the debugging call stack up to indicate which function we are in.
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/
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/ In:
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/ pName -> function name to be displayed in subsequent trace output.
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void CDebugStack::_TraceEnter(DWORD dwMask, LPCTSTR pName)
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{
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m_cDepth++;
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if ( m_cDepth < MAX_CALL_DEPTH )
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{
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if ( !pName )
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pName = TEXT("<no name>"); // no function name given
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m_CallStack[m_cDepth].fTracedYet = FALSE;
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m_CallStack[m_cDepth].pszFunctionName = pName;
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m_CallStack[m_cDepth].dwMask = dwMask;
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//if ( m_cDepth > 0 )
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// _TraceProlog(m_cDepth-1, FALSE);
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}
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}
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/*-----------------------------------------------------------------------------
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/ _TraceLeave
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/ ------------
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/ On exit from a function this will adjust the function stack pointer to
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/ point to our previous function. If no trace output has been made then
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/ we will output the function name on a single line (to indicate we went somewhere).
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/
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/ In:
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/ -
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void CDebugStack::_TraceLeave(void)
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{
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//_TraceProlog(m_cDepth, FALSE);
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//if ( !m_cDepth && m_CallStack[0].fTracedYet )
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// OutputDebugString(TEXT("\n"));
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m_cDepth = max(m_cDepth-1, -1); // account for underflow
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}
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/*-----------------------------------------------------------------------------
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/ _Trace
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/ -------
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/ Perform printf formatting to the debugging stream. We indent the output
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/ and stream the function name as required to give some indication of
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/ call stack depth.
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/
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/ In:
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/ pszFormat -> printf style formatting string
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/ ... = arguments as required for the formatting
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void CDebugStack::_Trace(BOOL bForce, LPCTSTR pszFormat, ...)
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{
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va_list va;
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va_start(va, pszFormat);
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_vTrace(bForce, pszFormat, va);
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va_end(va);
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}
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void CDebugStack::_vTrace(BOOL bForce, LPCTSTR pszFormat, va_list va)
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{
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if ( _TraceProlog(m_cDepth, bForce) || bForce )
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_vIndent(m_cDepth+1, pszFormat, va);
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}
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/*-----------------------------------------------------------------------------
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/ _TraceGUID
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/ -----------
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/ Given a GUID output it into the debug string, first we try and map it
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/ to a name (ie. IShellFolder), if that didn't work then we convert it
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/ to its human readable form.
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/
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/ In:
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/ pszPrefix -> prefix string
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/ lpGuid -> guid to be streamed
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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#ifdef UNICODE
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#define MAP_GUID(x) &x, TEXT(""L#x)
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#else
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#define MAP_GUID(x) &x, TEXT(""#x)
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#endif
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#define MAP_GUID2(x,y) MAP_GUID(x), MAP_GUID(y)
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const struct
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{
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const GUID* m_pGUID;
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LPCTSTR m_pName;
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}
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_guid_map[] =
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{
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MAP_GUID(IID_IUnknown),
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MAP_GUID(IID_IClassFactory),
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MAP_GUID(IID_IDropTarget),
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MAP_GUID(IID_IDataObject),
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MAP_GUID(IID_IPersist),
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MAP_GUID(IID_IOleWindow),
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MAP_GUID2(IID_INewShortcutHookA, IID_INewShortcutHookW),
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MAP_GUID(IID_IShellBrowser),
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MAP_GUID(IID_IShellView),
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MAP_GUID(IID_IContextMenu),
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MAP_GUID(IID_IShellIcon),
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MAP_GUID(IID_IShellFolder),
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MAP_GUID(IID_IShellExtInit),
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MAP_GUID(IID_IShellPropSheetExt),
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MAP_GUID(IID_IPersistFolder),
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MAP_GUID2(IID_IExtractIconA, IID_IExtractIconW),
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MAP_GUID2(IID_IShellLinkA, IID_IShellLinkW),
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MAP_GUID2(IID_IShellCopyHookA, IID_IShellCopyHookW),
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MAP_GUID2(IID_IFileViewerA, IID_IFileViewerW),
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MAP_GUID(IID_ICommDlgBrowser),
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MAP_GUID(IID_IEnumIDList),
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MAP_GUID(IID_IFileViewerSite),
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MAP_GUID(IID_IContextMenu2),
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MAP_GUID2(IID_IShellExecuteHookA, IID_IShellExecuteHookW),
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MAP_GUID(IID_IPropSheetPage),
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MAP_GUID(IID_IShellView2),
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MAP_GUID(IID_IUniformResourceLocator),
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};
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void CDebugStack::_TraceGUID(LPCTSTR pPrefix, REFGUID rGUID)
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{
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TCHAR szGUID[40];
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LPCTSTR pName = NULL;
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int i;
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for ( i = 0 ; i < ARRAYSIZE(_guid_map); i++ )
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{
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if ( IsEqualGUID(rGUID, *_guid_map[i].m_pGUID) )
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{
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pName = _guid_map[i].m_pName;
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break;
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}
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}
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if ( !pName )
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{
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// StringFromGUID2 only does UNICODE. SHStringFromGUID goes both ways,
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// but requires shlwapip.h and shlwapi.lib.
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#ifndef UNICODE
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#error "_TraceGUID needs fixing"
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#endif
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StringFromGUID2(rGUID, szGUID, ARRAYSIZE(szGUID));
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//SHStringFromGUID(rGUID, szGUID, ARRAYSIZE(szGUID));
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pName = szGUID;
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}
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_Trace(FALSE, TEXT("%s %s"), pPrefix, pName);
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}
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/*-----------------------------------------------------------------------------
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/ _TraceAssert
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/ -------------
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/ Our assert handler, out faults it the trace mask as enabled assert
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/ faulting.
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/
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/ In:
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/ iLine = line
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/ pFilename -> filename of the file we asserted in
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void CDebugStack::_TraceAssert(int iLine, LPTSTR pFilename)
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{
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// nb: TRUE --> asserts always displayed
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_Trace(TRUE, TEXT("Assert failed in %s, line %d"), pFilename, iLine);
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if ( g_dwTraceMask & TRACE_COMMON_ASSERT )
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DebugBreak();
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}
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/*-----------------------------------------------------------------------------
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/ ~CDebugStackHolder
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/ ------------------
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/ Free any DebugStack objects that exist
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/
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/ In:
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/ -
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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int CALLBACK
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_DeleteCB(LPVOID pVoid, LPVOID /*pData*/)
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{
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PDEBUGSTACK pDebugStack = (PDEBUGSTACK)pVoid;
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if (pDebugStack)
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{
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//pDebugStack->_Trace(TRUE, TEXT("~CDebugStackHolder destroying DebugStack"));
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delete pDebugStack;
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}
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return 1;
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}
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CDebugStackHolder::~CDebugStackHolder()
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{
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EnterCriticalSection(&m_csStackList);
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if (NULL != m_hDebugStackList)
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{
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DPA_DestroyCallback(m_hDebugStackList, _DeleteCB, NULL);
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m_hDebugStackList = NULL;
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}
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LeaveCriticalSection(&m_csStackList);
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DeleteCriticalSection(&m_csStackList);
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}
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/*-----------------------------------------------------------------------------
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/ CDebugStackHolder::Add
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/ ----------------------
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/ Saves the DebugStack object in a list
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/
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/ In:
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/ PDEBUGSTACK pointer to the thread's debug stack object
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void
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CDebugStackHolder::Add(PDEBUGSTACK pDebugStack)
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{
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EnterCriticalSection(&m_csStackList);
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if (NULL == m_hDebugStackList)
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m_hDebugStackList = DPA_Create(4);
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if (NULL != m_hDebugStackList)
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DPA_AppendPtr(m_hDebugStackList, pDebugStack);
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LeaveCriticalSection(&m_csStackList);
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}
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/*-----------------------------------------------------------------------------
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/ CDebugStackHolder::Remove
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/ -------------------------
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/ Removes the DebugStack object from the list
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/
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/ In:
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/ PDEBUGSTACK pointer to the thread's debug stack object
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void
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CDebugStackHolder::Remove(PDEBUGSTACK pDebugStack)
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{
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EnterCriticalSection(&m_csStackList);
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if (NULL != m_hDebugStackList)
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{
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int iStack = DPA_GetPtrIndex(m_hDebugStackList, pDebugStack);
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if (-1 != iStack)
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DPA_DeletePtr(m_hDebugStackList, iStack);
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}
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LeaveCriticalSection(&m_csStackList);
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}
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/*-----------------------------------------------------------------------------
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/ GetThreadStack
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/ --------------
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/ Create (if necessary) and return the per-thread debug stack object.
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/
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/ In:
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/ -
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/
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/ Out:
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/ PDEBUGSTACK pointer to the thread's debug stack object
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/----------------------------------------------------------------------------*/
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PDEBUGSTACK GetThreadStack()
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{
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PDEBUGSTACK pDebugStack;
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if (0xffffffffL == g_tlsDebug)
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return NULL;
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pDebugStack = (PDEBUGSTACK)TlsGetValue(g_tlsDebug);
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if (!pDebugStack)
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{
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pDebugStack = new CDebugStack;
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TlsSetValue(g_tlsDebug, pDebugStack);
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if (!g_pStackHolder)
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g_pStackHolder = new CDebugStackHolder;
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if (g_pStackHolder)
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g_pStackHolder->Add(pDebugStack);
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}
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return pDebugStack;
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}
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/*-----------------------------------------------------------------------------
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/ DoTraceSetMask
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/ --------------
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/ Adjust the trace mask to reflect the state given.
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/
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/ In:
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/ dwMask = mask for enabling / disable trace output
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void DoTraceSetMask(DWORD dwMask)
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{
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g_dwTraceMask = dwMask;
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}
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/*-----------------------------------------------------------------------------
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/ DoTraceSetMaskFromRegKey
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/ ------------------------
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/ Pick up the TraceMask value from the given registry key and
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/ set the trace mask using that.
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/
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/ In:
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/ hkRoot = handle of open key
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/ pszSubKey = name of subkey to open
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void DoTraceSetMaskFromRegKey(HKEY hkRoot, LPCTSTR pszSubKey)
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{
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HKEY hKey;
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if (ERROR_SUCCESS == RegOpenKey(hkRoot, pszSubKey, &hKey))
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{
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DWORD dwTraceMask = 0;
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DWORD cbTraceMask = SIZEOF(dwTraceMask);
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RegQueryValueEx(hKey,
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TEXT("TraceMask"),
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NULL,
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NULL,
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(LPBYTE)&dwTraceMask,
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&cbTraceMask);
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DoTraceSetMask(dwTraceMask);
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RegCloseKey(hKey);
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}
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}
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/*-----------------------------------------------------------------------------
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/ DoTraceSetMaskFromCLSID
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/ -----------------------
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/ Pick up the TraceMask value from the given CLSID value and
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/ set the trace mask using that.
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/
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/ In:
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/ rCLSID = CLSID to query the value from
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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void DoTraceSetMaskFromCLSID(REFCLSID rCLSID)
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{
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TCHAR szClsidKey[48] = TEXT("CLSID\\");
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int nLength = lstrlen(szClsidKey);
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|
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// StringFromGUID2 only does UNICODE. SHStringFromGUID goes both ways,
|
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// but requires shlwapip.h and shlwapi.lib.
|
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#ifdef UNICODE
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if (0 == StringFromGUID2(rCLSID, szClsidKey + nLength, ARRAYSIZE(szClsidKey) - nLength))
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#else
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#error "DoTraceSetMaskFromCLSID needs fixing"
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if (0 == SHStringFromGUID(rCLSID, szClsidKey + nLength, ARRAYSIZE(szClsidKey) - nLength))
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#endif
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return;
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DoTraceSetMaskFromRegKey(HKEY_CLASSES_ROOT, szClsidKey);
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}
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|
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|
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/*-----------------------------------------------------------------------------
|
|
/ DoTraceEnter
|
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/ ------------
|
|
/ Set the debugging call stack up to indicate which function we are in.
|
|
/
|
|
/ In:
|
|
/ pName -> function name to be displayed in subsequent trace output.
|
|
/
|
|
/ Out:
|
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/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DoTraceEnter(DWORD dwMask, LPCTSTR pName)
|
|
{
|
|
PDEBUGSTACK pDebugStack = GetThreadStack();
|
|
|
|
if (pDebugStack)
|
|
pDebugStack->_TraceEnter(dwMask, pName);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
/ DoTraceLeave
|
|
/ ------------
|
|
/ On exit from a function this will adjust the function stack pointer to
|
|
/ point to our previous function. If no trace output has been made then
|
|
/ we will output the function name on a single line (to indicate we went somewhere).
|
|
/
|
|
/ In:
|
|
/ -
|
|
/ Out:
|
|
/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DoTraceLeave(void)
|
|
{
|
|
PDEBUGSTACK pDebugStack = GetThreadStack();
|
|
|
|
if (pDebugStack)
|
|
pDebugStack->_TraceLeave();
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
/ DoTrace
|
|
/ -------
|
|
/ Perform printf formatting to the debugging stream. We indent the output
|
|
/ and stream the function name as required to give some indication of
|
|
/ call stack depth.
|
|
/
|
|
/ In:
|
|
/ pszFormat -> printf style formatting string
|
|
/ ... = arguments as required for the formatting
|
|
/
|
|
/ Out:
|
|
/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DoTrace(LPCTSTR pszFormat, ...)
|
|
{
|
|
PDEBUGSTACK pDebugStack = GetThreadStack();
|
|
va_list va;
|
|
|
|
if (pDebugStack)
|
|
{
|
|
va_start(va, pszFormat);
|
|
pDebugStack->_vTrace(FALSE, pszFormat, va);
|
|
va_end(va);
|
|
}
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
/ DoTraceGuid
|
|
/ -----------
|
|
/ Given a GUID output it into the debug string, first we try and map it
|
|
/ to a name (ie. IShellFolder), if that didn't work then we convert it
|
|
/ to its human readable form.
|
|
/
|
|
/ In:
|
|
/ pszPrefix -> prefix string
|
|
/ lpGuid -> guid to be streamed
|
|
/
|
|
/ Out:
|
|
/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DoTraceGUID(LPCTSTR pPrefix, REFGUID rGUID)
|
|
{
|
|
PDEBUGSTACK pDebugStack = GetThreadStack();
|
|
|
|
if (pDebugStack)
|
|
pDebugStack->_TraceGUID(pPrefix, rGUID);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
/ DoTraceAssert
|
|
/ -------------
|
|
/ Our assert handler, out faults it the trace mask as enabled assert
|
|
/ faulting.
|
|
/
|
|
/ In:
|
|
/ iLine = line
|
|
/ pFilename -> filename of the file we asserted in
|
|
/
|
|
/ Out:
|
|
/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DoTraceAssert(int iLine, LPTSTR pFilename)
|
|
{
|
|
PDEBUGSTACK pDebugStack = GetThreadStack();
|
|
|
|
if (pDebugStack)
|
|
pDebugStack->_TraceAssert(iLine, pFilename);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
/ DebugThreadDetach
|
|
/ DebugProcessAttach
|
|
/ DebugProcessDetach
|
|
/ -------------
|
|
/ These must be called from DllMain
|
|
/
|
|
/ In:
|
|
/ -
|
|
/
|
|
/ Out:
|
|
/ -
|
|
/----------------------------------------------------------------------------*/
|
|
void DebugThreadDetach(void)
|
|
{
|
|
PDEBUGSTACK pDebugStack;
|
|
|
|
if (0xffffffffL == g_tlsDebug)
|
|
return;
|
|
|
|
pDebugStack = (PDEBUGSTACK)TlsGetValue(g_tlsDebug);
|
|
|
|
if (pDebugStack)
|
|
{
|
|
if (g_pStackHolder)
|
|
g_pStackHolder->Remove(pDebugStack);
|
|
|
|
delete pDebugStack;
|
|
TlsSetValue(g_tlsDebug, NULL);
|
|
}
|
|
}
|
|
|
|
void DebugProcessAttach(void)
|
|
{
|
|
g_tlsDebug = TlsAlloc();
|
|
}
|
|
|
|
void DebugProcessDetach(void)
|
|
{
|
|
DebugThreadDetach();
|
|
|
|
if (NULL != g_pStackHolder)
|
|
{
|
|
delete g_pStackHolder;
|
|
g_pStackHolder = NULL;
|
|
}
|
|
|
|
if (0xffffffffL != g_tlsDebug)
|
|
{
|
|
TlsFree(g_tlsDebug);
|
|
g_tlsDebug = 0xffffffffL;
|
|
}
|
|
}
|
|
|
|
|
|
#endif // DEBUG
|