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hlsdk-xash3d/dlls/Wxdebug.cpp

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//==========================================================================;
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (c) 1992 - 1997 Microsoft Corporation. All Rights Reserved.
//
//--------------------------------------------------------------------------;
// For every module and executable we store a debugging level and flags
// for the types of output that are desired. Constants for the types are
// defined in WXDEBUG.H and more can be added.
// The keys are stored in the registry under the
// HKEY_LOCAL_MACHINE\SOFTWARE\Debug\<Module Name>\Type and
// HKEY_LOCAL_MACHINE\SOFTWARE\Debug\<Module Name>\Level key values
//
// There are also global values under SOFTWARE\Debug\Global which are loaded
// after the module-specific values. The Types specified there are OR'ed with
// the module specific types and m_dwLevel is set to the greater of the global
// and the module specific settings.
#include <stdarg.h>
#include <stdio.h>
#include "extdll.h"
#include "util.h"
#include "wxdebug.h"
#include <tchar.h>
#ifdef _DEBUG
void WINAPI DbgInitModuleName(void);
void WINAPI DbgInitModuleSettings(void);
void WINAPI DbgInitGlobalSettings(void);
void WINAPI DbgInitLogTo(HKEY hKey);
void WINAPI DbgInitKeyLevels(HKEY hKey, DWORD *pdwTypes, DWORD *pdwLevel);
const INT iDEBUGINFO = 512; // Used to format strings
HINSTANCE m_hInst; // Module instance handle
TCHAR m_ModuleName[iDEBUGINFO]; // Cut down module name
//CRITICAL_SECTION m_CSDebug; // Controls access to list
BOOL m_bInit = FALSE; // Have we been initialised
HANDLE m_hOutput = INVALID_HANDLE_VALUE; // Optional output written here
DWORD m_dwTypes = 0;
DWORD m_dwLevel = 0;
const TCHAR *m_pBaseKey = TEXT("SOFTWARE\\Debug");
const TCHAR *m_pGlobalKey = TEXT("GLOBAL");
TCHAR *pKeyNames[] =
{
TEXT("Types"),
TEXT("Level")
};
// DbgInitialize
// This sets the instance handle that the debug library uses to find
// the module's file name from the Win32 GetModuleFileName function
void WINAPI DbgInitialise(HINSTANCE hInst)
{
if (!m_bInit)
{
//InitializeCriticalSection(&m_CSDebug);
m_bInit = TRUE;
m_hInst = hInst;
DbgInitModuleName();
DbgInitModuleSettings();
DbgInitGlobalSettings();
}
}
// DbgTerminate
// This is called to clear up any resources the debug library uses - at the
// moment we delete our critical section and the handle of the output file.
void WINAPI DbgTerminate()
{
if (m_bInit)
{
if (m_hOutput != INVALID_HANDLE_VALUE)
{
DBGASSERTEXECUTE(CloseHandle(m_hOutput));
m_hOutput = INVALID_HANDLE_VALUE;
}
//DeleteCriticalSection(&m_CSDebug);
m_bInit = FALSE;
}
}
// DbgInitModuleName
// Initialise the module file name
void WINAPI DbgInitModuleName()
{
TCHAR FullName[iDEBUGINFO]; // Load the full path and module name
TCHAR *pName; // Searches from the end for a backslash
GetModuleFileName(m_hInst,FullName,iDEBUGINFO);
pName = _tcsrchr(FullName,'\\');
if (pName == NULL)
{
pName = FullName;
}
else
{
pName++;
}
lstrcpy(m_ModuleName,pName);
}
// DbgInitModuleSettings
// Retrieve the module-specific settings
void WINAPI DbgInitModuleSettings()
{
LONG lReturn; // Create key return value
TCHAR szInfo[iDEBUGINFO]; // Constructs key names
HKEY hModuleKey; // Module key handle
// Construct the base key name
wsprintf(szInfo,TEXT("%s\\%s"),m_pBaseKey,m_ModuleName);
// Create or open the key for this module
lReturn = RegCreateKeyEx(HKEY_LOCAL_MACHINE, // Handle of an open key
szInfo, // Address of subkey name
(DWORD)0, // Reserved value
NULL, // Address of class name
(DWORD)0, // Special options flags
KEY_ALL_ACCESS, // Desired security access
NULL, // Key security descriptor
&hModuleKey, // Opened handle buffer
NULL); // What really happened
if (lReturn != ERROR_SUCCESS)
{
DbgLogInfo(LOG_ERROR, 0, TEXT("Could not access module key"));
return;
}
DbgInitLogTo(hModuleKey);
DbgInitKeyLevels(hModuleKey, &m_dwTypes, &m_dwLevel);
RegCloseKey(hModuleKey);
}
// DbgInitGlobalSettings
// This is called by DbgInitialize to read the global debug settings for
// Level and Type from the registry. The Types are OR'ed together and m_dwLevel
// is set to the greater of the global and module-specific values.
void WINAPI DbgInitGlobalSettings()
{
LONG lReturn; // Create key return value
TCHAR szInfo[iDEBUGINFO]; // Constructs key names
HKEY hGlobalKey; // Global override key
DWORD dwTypes = 0;
DWORD dwLevel = 0;
// Construct the global base key name
wsprintf(szInfo,TEXT("%s\\%s"),m_pBaseKey,m_pGlobalKey);
// Create or open the key for this module
lReturn = RegCreateKeyEx(HKEY_LOCAL_MACHINE, // Handle of an open key
szInfo, // Address of subkey name
(DWORD)0, // Reserved value
NULL, // Address of class name
(DWORD)0, // Special options flags
KEY_ALL_ACCESS, // Desired security access
NULL, // Key security descriptor
&hGlobalKey, // Opened handle buffer
NULL); // What really happened
if (lReturn != ERROR_SUCCESS)
{
DbgLogInfo(LOG_ERROR, 0, TEXT("Could not access GLOBAL module key"));
return;
}
DbgInitKeyLevels(hGlobalKey, &dwTypes, &dwLevel);
RegCloseKey(hGlobalKey);
m_dwTypes |= dwTypes;
if (dwLevel > m_dwLevel)
m_dwLevel = dwLevel;
}
// DbgInitLogTo
// Called by DbgInitModuleSettings to setup alternate logging destinations
void WINAPI DbgInitLogTo(HKEY hKey)
{
LONG lReturn;
DWORD dwKeyType;
DWORD dwKeySize;
TCHAR szFile[MAX_PATH] = {0};
static const TCHAR cszKey[] = TEXT("LogToFile");
dwKeySize = MAX_PATH;
lReturn = RegQueryValueEx(
hKey, // Handle to an open key
cszKey, // Subkey name derivation
NULL, // Reserved field
&dwKeyType, // Returns the field type
(LPBYTE) szFile, // Returns the field's value
&dwKeySize); // Number of bytes transferred
// create an empty key if it does not already exist
if (lReturn != ERROR_SUCCESS || dwKeyType != REG_SZ)
{
dwKeySize = 1;
lReturn = RegSetValueEx(
hKey, // Handle of an open key
cszKey, // Address of subkey name
(DWORD) 0, // Reserved field
REG_SZ, // Type of the key field
(PBYTE)szFile, // Value for the field
dwKeySize); // Size of the field buffer
}
// if an output-to was specified. try to open it.
if (m_hOutput != INVALID_HANDLE_VALUE)
{
DBGASSERTEXECUTE(CloseHandle(m_hOutput));
m_hOutput = INVALID_HANDLE_VALUE;
}
if (szFile[0] != 0)
{
if (!lstrcmpi(szFile, TEXT("Console")))
{
m_hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
if (m_hOutput == INVALID_HANDLE_VALUE)
{
AllocConsole();
m_hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
}
SetConsoleTitle (TEXT("Valve Debug Output"));
} else if (szFile[0] &&
lstrcmpi(szFile, TEXT("Debug")) &&
lstrcmpi(szFile, TEXT("Debugger")) &&
lstrcmpi(szFile, TEXT("Deb")))
{
m_hOutput = CreateFile(szFile, GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (INVALID_HANDLE_VALUE != m_hOutput)
{
static const TCHAR cszBar[] = TEXT("\r\n\r\n=====DbgInitialize()=====\r\n\r\n");
SetFilePointer (m_hOutput, 0, NULL, FILE_END);
DbgOutString (cszBar);
}
}
}
}
// DbgInitKeyLevels
// This is called by DbgInitModuleSettings and DbgInitGlobalSettings to read
// settings for Types and Level from the registry
void WINAPI DbgInitKeyLevels(HKEY hKey, DWORD *pdwTypes, DWORD *pdwLevel)
{
LONG lReturn; // Create key return value
DWORD dwKeySize; // Size of the key value
DWORD dwKeyType; // Receives it's type
// Get the Types value
dwKeySize = sizeof(DWORD);
lReturn = RegQueryValueEx(
hKey, // Handle to an open key
pKeyNames[0], // Subkey name derivation
NULL, // Reserved field
&dwKeyType, // Returns the field type
(LPBYTE)pdwTypes, // Returns the field's value
&dwKeySize ); // Number of bytes transferred
// If either the key was not available or it was not a DWORD value
// then we ensure only the high priority debug logging is output
// but we try and update the field to a zero filled DWORD value
if (lReturn != ERROR_SUCCESS || dwKeyType != REG_DWORD)
{
*pdwTypes = 0;
lReturn = RegSetValueEx(
hKey, // Handle of an open key
pKeyNames[0], // Address of subkey name
(DWORD)0, // Reserved field
REG_DWORD, // Type of the key field
(PBYTE)pdwTypes, // Value for the field
sizeof(DWORD)); // Size of the field buffer
if (lReturn != ERROR_SUCCESS)
{
DbgLogInfo(LOG_ERROR, 0, TEXT("Could not create subkey %s"),pKeyNames[0]);
*pdwTypes = 0;
}
}
// Get the Level value
dwKeySize = sizeof(DWORD);
lReturn = RegQueryValueEx(
hKey, // Handle to an open key
pKeyNames[1], // Subkey name derivation
NULL, // Reserved field
&dwKeyType, // Returns the field type
(LPBYTE)pdwLevel, // Returns the field's value
&dwKeySize ); // Number of bytes transferred
// If either the key was not available or it was not a DWORD value
// then we ensure only the high priority debug logging is output
// but we try and update the field to a zero filled DWORD value
if (lReturn != ERROR_SUCCESS || dwKeyType != REG_DWORD)
{
*pdwLevel = 0;
lReturn = RegSetValueEx(
hKey, // Handle of an open key
pKeyNames[1], // Address of subkey name
(DWORD)0, // Reserved field
REG_DWORD, // Type of the key field
(PBYTE)pdwLevel, // Value for the field
sizeof(DWORD)); // Size of the field buffer
if (lReturn != ERROR_SUCCESS)
{
DbgLogInfo(LOG_ERROR, 0, TEXT("Could not create subkey %s"),pKeyNames[1]);
*pdwLevel = 0;
}
}
}
// DbgOutString
void WINAPI DbgOutString(LPCTSTR psz)
{
if (!m_bInit)
return;
if (m_hOutput != INVALID_HANDLE_VALUE) {
UINT cb = lstrlen(psz);
DWORD dw;
WriteFile (m_hOutput, psz, cb, &dw, NULL);
} else {
OutputDebugString (psz);
}
}
// DbgLogInfo
// Print a formatted string to the debugger prefixed with this module's name
// Because the debug code is linked statically every module loaded will
// have its own copy of this code. It therefore helps if the module name is
// included on the output so that the offending code can be easily found
void WINAPI DbgLogInfo(DWORD Type, DWORD Level, const TCHAR *pFormat,...)
{
if (!m_bInit)
return;
// Check the current level for this type combination */
if (((Type & m_dwTypes) == 0) || (m_dwLevel < Level))
return;
TCHAR szInfo[2000];
// Format the variable length parameter list
va_list va;
va_start(va, pFormat);
//lstrcpy(szInfo, m_ModuleName);
//lstrcat(szInfo, TEXT(": "));
wvsprintf(szInfo /* + lstrlen(szInfo) */, pFormat, va);
//lstrcat(szInfo, TEXT("\r\n"));
DbgOutString(szInfo);
va_end(va);
}
// DbgKernelAssert
// If we are executing as a pure kernel filter we cannot display message
// boxes to the user, this provides an alternative which puts the error
// condition on the debugger output with a suitable eye catching message
void WINAPI DbgKernelAssert(const TCHAR *pCondition, const TCHAR *pFileName, INT iLine)
{
if (!m_bInit)
return;
DbgLogInfo(LOG_ERROR, 0, TEXT(m_ModuleName));
DbgLogInfo(LOG_ERROR, 0, TEXT(": Assertion FAILED (%s) at line %d in file %s\r\n"), pCondition, iLine, pFileName);
DebugBreak();
}
#endif // _DEBUG
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