141 lines
3.6 KiB
C++
141 lines
3.6 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 2000-2001.
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//
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// File: debug.cpp
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//
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// Contents: Debugging support
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//
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//----------------------------------------------------------------------------
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#include "stdafx.h"
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#if DBG == 1
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static int indentLevel = 0;
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#define DEBUGKEY L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\AdminDebug\\LogHours"
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#define DEBUG_OUTPUT_NONE 0
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#define DEBUG_OUTPUT_ERROR 1
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#define DEBUG_OUTPUT_WARNING 2
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#define DEBUG_OUTPUT_TRACE 3
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#define DEBUGLEVEL L"debugOutput"
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static bool g_fDebugOutputLevelInit = false;
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static unsigned long g_ulDebugOutput = DEBUG_OUTPUT_NONE;
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void __cdecl _TRACE (int level, const wchar_t *format, ... )
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{
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if ( g_ulDebugOutput > DEBUG_OUTPUT_NONE )
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{
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va_list arglist;
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const size_t DEBUG_BUF_LEN = 512;
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WCHAR Buffer[DEBUG_BUF_LEN];
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int cb;
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if ( level < 0 )
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indentLevel += level;
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//
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// Format the output into a buffer and then print it.
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//
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wstring strTabs;
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for (int nLevel = 0; nLevel < indentLevel; nLevel++)
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strTabs += L" ";
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OutputDebugStringW (strTabs.c_str ());
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va_start(arglist, format);
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cb = _vsnwprintf (Buffer, DEBUG_BUF_LEN, format, arglist);
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if ( cb )
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{
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OutputDebugStringW (Buffer);
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}
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va_end(arglist);
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if ( level > 0 )
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indentLevel += level;
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}
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}
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PCSTR
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StripDirPrefixA(
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PCSTR pszPathName
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)
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/*++
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Routine Description:
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Strip the directory prefix off a filename (ANSI version)
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Arguments:
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pstrFilename - Pointer to filename string
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Return Value:
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Pointer to the last component of a filename (without directory prefix)
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--*/
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{
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DWORD dwLen = lstrlenA(pszPathName);
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pszPathName += dwLen - 1; // go to the end
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while (*pszPathName != '\\' && dwLen--)
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{
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pszPathName--;
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}
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return pszPathName + 1;
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}
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//+----------------------------------------------------------------------------
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// Function: CheckInit
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//
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// Synopsis: Performs debugging library initialization
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// including reading the registry for the desired infolevel
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//
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//-----------------------------------------------------------------------------
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void CheckDebugOutputLevel ()
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{
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if ( g_fDebugOutputLevelInit )
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return;
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g_fDebugOutputLevelInit = true;
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HKEY hKey = 0;
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DWORD dwDisposition = 0;
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LONG lResult = ::RegCreateKeyEx (HKEY_LOCAL_MACHINE, // handle of an open key
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DEBUGKEY, // address of subkey name
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0, // reserved
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L"", // address of class string
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REG_OPTION_NON_VOLATILE, // special options flag
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KEY_ALL_ACCESS, // desired security access
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NULL, // address of key security structure
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&hKey, // address of buffer for opened handle
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&dwDisposition); // address of disposition value buffer
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if (lResult == ERROR_SUCCESS)
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{
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DWORD dwSize = sizeof(unsigned long);
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lResult = RegQueryValueExW (hKey, DEBUGLEVEL, NULL, NULL,
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(LPBYTE)&g_ulDebugOutput, &dwSize);
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if (lResult != ERROR_SUCCESS)
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{
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g_ulDebugOutput = DEBUG_OUTPUT_NONE;
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if ( ERROR_FILE_NOT_FOUND == lResult )
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{
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RegSetValueExW (hKey, DEBUGLEVEL, 0, REG_DWORD,
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(LPBYTE)&g_ulDebugOutput, sizeof (g_ulDebugOutput));
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}
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}
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RegCloseKey(hKey);
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}
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}
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#endif // if DBG
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