Windows-Server-2003/net/wlbs/util/debugimpl.cpp

143 lines
3.8 KiB
C++

//+----------------------------------------------------------------------------
//
// File: debugimpl.cpp
//
// Module: Network Load Balancing
//
// Synopsis: Provide the functionality of ASSERT
// The build enviorment does not allow to have a source file from another directory
// Include this cpp file directly.
// Another approach is to have a shared lib.
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
// Author: fengsun Created 8/3/98
//
//+----------------------------------------------------------------------------
#include "precomp.h"
#include "debug.h"
#include <strsafe.h>
#if ( defined(DEBUG) || defined(_DEBUG) || defined (DBG))
#ifndef MB_SERVICE_NOTIFICATION
#define MB_SERVICE_NOTIFICATION 0
#endif
static long dwAssertCount = 0; // Avoid another assert while the messagebox is up
//+----------------------------------------------------------------------------
//
// Function: AssertMessage
//
// Synopsis: Popup a message box for asserting failure. Has three options:
// ignore/debug/abort.
//
// Arguments: const char *pszFile - File name
// unsigned nLine - Line number
// const char *pszMsg - Message in the dialog box
//
// Returns: Nothing
//
// History: fengsun Created Header 8/3/98
//
//+----------------------------------------------------------------------------
extern "C" void AssertMessageW(const TCHAR *pszFile, unsigned nLine, const TCHAR *pszMsg)
{
TCHAR szOutput[1024];
//
// Ignore return value of StringCchPrintf since it will truncate the buffer and
// guarantees to null-terminate it for us.
//
(VOID) StringCchPrintf(szOutput, ASIZECCH(szOutput), TEXT("%s(%u) - %s\n"), pszFile, nLine, pszMsg);
OutputDebugString(szOutput);
(VOID) StringCchPrintf(szOutput, ASIZECCH(szOutput), TEXT("%s(%u) - %s\n( Press Retry to debug )"), pszFile, nLine, pszMsg);
int nCode = IDIGNORE;
//
// If there is no Assertion messagebox, popup one
//
if (dwAssertCount <2 )
{
dwAssertCount++;
//
// Title format: Assertion Failed - hello.dll
//
//
// Find the base address of this module.
//
MEMORY_BASIC_INFORMATION mbi;
mbi.AllocationBase = NULL; // current process by if VirtualQuery failed
VirtualQuery(
AssertMessageW, // any pointer with in the module
&mbi,
sizeof(mbi) );
//
// Get the module filename.
//
WCHAR szFileName[MAX_PATH + 1];
szFileName[0] = L'\0'; // in case of failure
if (GetModuleFileNameW(
(HINSTANCE)mbi.AllocationBase,
szFileName,
MAX_PATH ) == 0)
{
szFileName[0] = L'\0';
}
//
// Get the filename out of the full path
//
for (int i=lstrlen(szFileName);i != 0 && szFileName[i-1] != L'\\'; i--)
;
WCHAR szTitle[48];
if (StringCchCopy(szTitle, ASIZECCH(szTitle), L"Assertion Failed - ") == S_OK)
{
(VOID) StringCchCat(szTitle, ASIZECCH(szTitle), szFileName+i);
}
nCode = MessageBoxEx(NULL,szOutput,szTitle,
MB_TOPMOST | MB_ICONHAND | MB_ABORTRETRYIGNORE | MB_SERVICE_NOTIFICATION,LANG_USER_DEFAULT);
dwAssertCount--;
}
if (nCode == IDIGNORE)
{
return; // ignore
}
else if (nCode == IDRETRY)
{
#ifdef _X86_
//
// break into the debugger .
// Step out of this fuction to get to your ASSERT() code
//
_asm { int 3 };
#else
DebugBreak();
#endif
return; // ignore and continue in debugger to diagnose problem
}
// else fall through and call Abort
ExitProcess((DWORD)-1);
}
#endif //_DEBUG