Leaked source code of windows server 2003
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9.5 KiB

//+---------------------------------------------------------------------------
// Copyright (C) 1991-1994, Microsoft Corporation.
//
// File: assert.cxx
//
// Contents: Debugging output routines
//
// History: 23-Jul-91 KyleP Created.
// 09-Oct-91 KevinRo Major changes and comments added
// 18-Oct-91 vich moved debug print routines out
// 10-Jun-92 BryanT Switched to w4crt.h instead of wchar.h
// 30-Sep-93 KyleP DEVL obsolete
// 7-Oct-94 BruceFo Ripped out all kernel, non-FLAT,
// DLL-specific, non-Win32 functionality.
// Now it's basically "print to the
// debugger" code.
//
//----------------------------------------------------------------------------
#if DBG == 1
#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include "debug.h"
#include <strsafe.h>
#ifndef ARRAYLEN
#define ARRAYLEN(a) (sizeof(a) / sizeof((a)[0]))
#endif
//////////////////////////////////////////////////////////////////////////////
unsigned long Win4InfoLevel = DEF_INFOLEVEL;
unsigned long Win4InfoMask = 0xffffffff;
unsigned long Win4AssertLevel = ASSRT_MESSAGE | ASSRT_BREAK | ASSRT_POPUP;
//////////////////////////////////////////////////////////////////////////////
static int _cdecl w4dprintf(const char *format, ...);
static int _cdecl w4vdprintf(const char *format, va_list arglist);
//////////////////////////////////////////////////////////////////////////////
static CRITICAL_SECTION s_csMessageBuf;
static char g_szMessageBuf[500]; // this is the message buffer
static int _cdecl w4dprintf(const char *format, ...)
{
int ret;
va_list va;
va_start(va, format);
ret = w4vdprintf(format, va);
va_end(va);
return ret;
}
static int _cdecl w4vdprintf(const char *format, va_list arglist)
{
int ret = 0;
EnterCriticalSection(&s_csMessageBuf);
if (SUCCEEDED(StringCchPrintfA(g_szMessageBuf, ARRAYLEN(g_szMessageBuf), format, arglist)))
{
ret = lstrlenA(g_szMessageBuf);
}
OutputDebugStringA(g_szMessageBuf);
LeaveCriticalSection(&s_csMessageBuf);
return ret;
}
//////////////////////////////////////////////////////////////////////////////
//+---------------------------------------------------------------------------
//
// Function: _asdprintf
//
// Synopsis: Calls vdprintf to output a formatted message.
//
// History: 18-Oct-91 vich Created
//
//----------------------------------------------------------------------------
inline void __cdecl
_asdprintf(
char const *pszfmt, ...)
{
va_list va;
va_start(va, pszfmt);
vdprintf(DEB_FORCE, "Assert", pszfmt, va);
va_end(va);
}
//+---------------------------------------------------------------------------
//
// Function: Win4AssertEx, private
//
// Synopsis: Display assertion information
//
// Effects: Called when an assertion is hit.
//
//----------------------------------------------------------------------------
EXPORTIMP void APINOT
Win4AssertEx(
char const * szFile,
int iLine,
char const * szMessage)
{
if (Win4AssertLevel & ASSRT_MESSAGE)
{
DWORD tid = GetCurrentThreadId();
_asdprintf("%s File: %s Line: %u, thread id %d\n",
szMessage, szFile, iLine, tid);
}
if (Win4AssertLevel & ASSRT_POPUP)
{
int id = PopUpError(szMessage,iLine,szFile);
if (id == IDCANCEL)
{
DebugBreak();
}
}
else if (Win4AssertLevel & ASSRT_BREAK)
{
DebugBreak();
}
}
//+------------------------------------------------------------
// Function: SetWin4InfoLevel(unsigned long ulNewLevel)
//
// Synopsis: Sets the global info level for debugging output
// Returns: Old info level
//
//-------------------------------------------------------------
EXPORTIMP unsigned long APINOT
SetWin4InfoLevel(
unsigned long ulNewLevel)
{
unsigned long ul;
ul = Win4InfoLevel;
Win4InfoLevel = ulNewLevel;
return(ul);
}
//+------------------------------------------------------------
// Function: SetWin4InfoMask(unsigned long ulNewMask)
//
// Synopsis: Sets the global info mask for debugging output
// Returns: Old info mask
//
//-------------------------------------------------------------
EXPORTIMP unsigned long APINOT
SetWin4InfoMask(
unsigned long ulNewMask)
{
unsigned long ul;
ul = Win4InfoMask;
Win4InfoMask = ulNewMask;
return(ul);
}
//+------------------------------------------------------------
// Function: SetWin4AssertLevel(unsigned long ulNewLevel)
//
// Synopsis: Sets the global assert level for debugging output
// Returns: Old assert level
//
//-------------------------------------------------------------
EXPORTIMP unsigned long APINOT
SetWin4AssertLevel(
unsigned long ulNewLevel)
{
unsigned long ul;
ul = Win4AssertLevel;
Win4AssertLevel = ulNewLevel;
return(ul);
}
//+------------------------------------------------------------
// Function: PopUpError
//
// Synopsis: Displays a dialog box using provided text,
// and presents the user with the option to
// continue or cancel.
//
// Arguments:
// szMsg -- The string to display in main body of dialog
// iLine -- Line number of file in error
// szFile -- Filename of file in error
//
// Returns:
// IDCANCEL -- User selected the CANCEL button
// IDOK -- User selected the OK button
//-------------------------------------------------------------
EXPORTIMP int APINOT
PopUpError(
char const *szMsg,
int iLine,
char const *szFile)
{
int id;
static char szAssertCaption[128];
static char szModuleName[128];
DWORD tid = GetCurrentThreadId();
DWORD pid = GetCurrentProcessId();
char * pszModuleName;
if (GetModuleFileNameA(NULL, szModuleName, 128))
{
pszModuleName = strrchr(szModuleName, '\\');
if (!pszModuleName)
{
pszModuleName = szModuleName;
}
else
{
pszModuleName++;
}
}
else
{
pszModuleName = "Unknown";
}
StringCchPrintfA(szAssertCaption, ARRAYLEN(szAssertCaption), "Process: %s File: %s line %u, thread id %d.%d",
pszModuleName, szFile, iLine, pid, tid);
id = MessageBoxA(NULL,
szMsg,
szAssertCaption,
MB_SETFOREGROUND
| MB_DEFAULT_DESKTOP_ONLY
| MB_TASKMODAL
| MB_ICONEXCLAMATION
| MB_OKCANCEL);
//
// If id == 0, then an error occurred. There are two possibilities
// that can cause the error: Access Denied, which means that this
// process does not have access to the default desktop, and everything
// else (usually out of memory).
//
if (0 == id)
{
if (GetLastError() == ERROR_ACCESS_DENIED)
{
//
// Retry this one with the SERVICE_NOTIFICATION flag on. That
// should get us to the right desktop.
//
id = MessageBoxA(NULL,
szMsg,
szAssertCaption,
MB_SETFOREGROUND
| MB_SERVICE_NOTIFICATION
| MB_TASKMODAL
| MB_ICONEXCLAMATION
| MB_OKCANCEL);
}
}
return id;
}
//+------------------------------------------------------------
// Function: vdprintf
//
// Synopsis: Prints debug output using a pointer to the
// variable information. Used primarily by the
// xxDebugOut macros
//
// Arguements:
// ulCompMask -- Component level mask used to determine
// output ability
// pszComp -- String const of component prefix.
// ppszfmt -- Pointer to output format and data
//
//-------------------------------------------------------------
static CRITICAL_SECTION s_csDebugPrint;
EXPORTIMP void APINOT
vdprintf(
unsigned long ulCompMask,
char const *pszComp,
char const *ppszfmt,
va_list pargs)
{
if ((ulCompMask & DEB_FORCE) == DEB_FORCE ||
((ulCompMask | Win4InfoLevel) & Win4InfoMask))
{
EnterCriticalSection(&s_csDebugPrint);
DWORD tid = GetCurrentThreadId();
DWORD pid = GetCurrentProcessId();
if ((Win4InfoLevel & (DEB_DBGOUT | DEB_STDOUT)) != DEB_STDOUT)
{
if (! (ulCompMask & DEB_NOCOMPNAME))
{
w4dprintf("%d.%03d> %s: ", pid, tid, pszComp);
}
w4vdprintf(ppszfmt, pargs);
}
if (Win4InfoLevel & DEB_STDOUT)
{
if (! (ulCompMask & DEB_NOCOMPNAME))
{
printf("%d.%03d> %s: ", pid, tid, pszComp);
}
vprintf(ppszfmt, pargs);
}
LeaveCriticalSection(&s_csDebugPrint);
}
}
void APINOT InitializeDebugging(void)
{
InitializeCriticalSection(&s_csMessageBuf);
InitializeCriticalSection(&s_csDebugPrint);
}
void APINOT UninitializeDebugging(void)
{
DeleteCriticalSection(&s_csMessageBuf);
DeleteCriticalSection(&s_csDebugPrint);
}
#endif // DBG == 1