Leaked source code of windows server 2003
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389 lines
9.1 KiB

/*++
Copyright (C) 1999-2001 Microsoft Corporation
Module Name:
PERFNDB.CPP
Abstract:
History:
--*/
#include "precomp.h"
#include <stdio.h>
#include <wbemcli.h>
#include <cominit.h>
#include <winmgmtr.h>
#include "perfndb.h"
#include "adaputil.h"
#include "adapreg.h"
DWORD CPerfNameDb::s_SystemReservedHigh = 0;
CPerfNameDb::CPerfNameDb(HKEY hKey):
m_pMultiCounter(NULL),
m_pMultiHelp(NULL),
m_pCounter(NULL),
m_pHelp(NULL),
m_Size(0),
m_fOk(FALSE)
{
try
{
m_fOk = SUCCEEDED(Init(hKey));
}
catch (...)
{
CAdapUtility::NTLogEvent( EVENTLOG_WARNING_TYPE,
WBEM_MC_ADAP_PERFLIB_SUBKEY_FAILURE,
L"HKEY_PERFORMANCE_xxxTEXT",
CHex( ::GetLastError() ));
}
//Dump();
}
HRESULT
CPerfNameDb::Init(HKEY hKey)
{
LONG lRet;
DWORD dwType;
DWORD dwInc = 0x10000;
DWORD dwSize = dwInc;
BYTE * pData;
DWORD SizeCounter;
DWORD SizeHelp;
WCHAR * pEnd;
DWORD Index;
HRESULT hr = S_FALSE;
pData = new BYTE[dwSize];
if (!pData)
return WBEM_E_OUT_OF_MEMORY;
retry1:
{
lRet = RegQueryValueEx(hKey,
TEXT("Counter"),
NULL,
&dwType,
pData,
&dwSize);
if (ERROR_SUCCESS == lRet)
{
m_pMultiCounter = (WCHAR *)pData;
pData = NULL;
hr = S_OK;
SizeCounter = dwSize;
}
else if (ERROR_MORE_DATA == lRet)
{
delete [] pData;
pData = new BYTE[dwSize];
if (!pData)
{
hr = WBEM_E_OUT_OF_MEMORY;
goto cleanup;
}
else
{
goto retry1;
}
}
else
{
hr = WBEM_E_FAILED;
goto cleanup;
}
};
if (S_OK != hr) // we exited the loop without openeing the DB
goto cleanup;
hr = S_FALSE;
dwSize = dwInc;
//
// start a new loop for the help texts
//
pData = new BYTE[dwSize];
if (!pData)
return WBEM_E_OUT_OF_MEMORY;
retry2:
{
lRet = RegQueryValueEx(hKey,
TEXT("Help"),
NULL,
&dwType,
pData,
&dwSize);
if (ERROR_SUCCESS == lRet)
{
m_pMultiHelp = (WCHAR *)pData;
pData = NULL;
hr = S_OK;
SizeHelp = dwSize;
}
else if (ERROR_MORE_DATA == lRet)
{
delete [] pData;
pData = new BYTE[dwSize];
if (!pData)
{
hr = WBEM_E_OUT_OF_MEMORY;
goto cleanup;
}
else
{
goto retry2;
}
}
else
{
hr = WBEM_E_FAILED;
goto cleanup;
}
};
if (S_OK != hr) // we exited the loop without openeing the DB
goto cleanup;
//
// now parse the string, and set-up the arrays
//
pEnd = (WCHAR *)(((ULONG_PTR)m_pMultiCounter)+SizeCounter);
// points to the last char
pEnd--;
while (*pEnd == L'\0')
pEnd--;
while (*pEnd)
pEnd--;
// past the zero after the last index
pEnd--;
while (*pEnd)
pEnd--;
// this should point to the last index as a string
pEnd++;
Index = _wtoi(pEnd);
if (Index)
{
Index+=2; // just to be safe
m_Size = Index;
m_pCounter = new WCHAR*[Index];
if (!m_pCounter){
hr = WBEM_E_OUT_OF_MEMORY;
goto cleanup;
}
memset(m_pCounter,0,Index*sizeof(WCHAR *));
m_pHelp = new WCHAR*[Index];
if (!m_pHelp){
hr = WBEM_E_OUT_OF_MEMORY;
goto cleanup;
}
memset(m_pHelp,0,Index*sizeof(WCHAR *));
DWORD IndexCounter;
DWORD IndexHelp;
WCHAR * pStartCounter = m_pMultiCounter;
WCHAR * pStartHelp = m_pMultiHelp;
ULONG_PTR LimitMultiCounter = (ULONG_PTR)m_pMultiCounter + SizeCounter;
ULONG_PTR LimitMultiHelp = (ULONG_PTR)m_pMultiHelp + SizeHelp;
while ((*pStartCounter) && ((ULONG_PTR)pStartCounter < LimitMultiCounter))
{
IndexCounter = _wtoi(pStartCounter);
while(*pStartCounter)
pStartCounter++;
pStartCounter++; // points to the string
if (IndexCounter && (IndexCounter < Index))
m_pCounter[IndexCounter] = pStartCounter;
// skip the string
while(*pStartCounter)
pStartCounter++;
pStartCounter++; // points to the next number
}
while((*pStartHelp) && ((ULONG_PTR)pStartHelp < LimitMultiHelp))
{
IndexHelp = _wtoi(pStartHelp);
while(*pStartHelp)
pStartHelp++;
pStartHelp++; // points to the string
if (IndexHelp && (IndexHelp < Index))
m_pHelp[IndexHelp] = pStartHelp;
// skip the string
while(*pStartHelp)
pStartHelp++;
pStartHelp++; // points to the next number
}
hr = S_OK;
}
else
{
hr = WBEM_E_FAILED;
}
if (SUCCEEDED(hr) &&
(0 == CPerfNameDb::s_SystemReservedHigh))
{
CPerfNameDb::s_SystemReservedHigh = _wtoi(m_pCounter[1]);
if (0 == CPerfNameDb::s_SystemReservedHigh)
hr = WBEM_E_FAILED;
};
cleanup:
if (pData)
delete [] pData;
return hr;
}
HRESULT
CPerfNameDb::GetDisplayName(DWORD dwIndex,
WString& wstrDisplayName )
{
HRESULT hr;
if (dwIndex < m_Size)
{
try {
// Check for a vaild display name
if (m_pCounter[dwIndex]) {
wstrDisplayName = m_pCounter[dwIndex];
hr = WBEM_S_NO_ERROR;
} else {
hr = WBEM_E_FAILED;
}
} catch (...) {
hr = WBEM_E_OUT_OF_MEMORY;
}
} else {
hr = WBEM_E_INVALID_PARAMETER;
}
return hr;
}
HRESULT
CPerfNameDb::GetDisplayName(DWORD dwIndex,
LPCWSTR* ppwcsDisplayName )
{
HRESULT hr;
if (dwIndex < m_Size && ppwcsDisplayName)
{
// Check for a vaild display name
if (m_pCounter[dwIndex])
{
*ppwcsDisplayName = m_pCounter[dwIndex];
hr = WBEM_S_NO_ERROR;
}
else
{
hr = WBEM_E_FAILED;
}
} else {
hr = WBEM_E_INVALID_PARAMETER;
}
return hr;
}
HRESULT
CPerfNameDb::GetHelpName( DWORD dwIndex, WString& wstrHelpName )
{
HRESULT hr;
if (dwIndex < m_Size)
{
try {
// Check for a vaild display name
if (m_pHelp[dwIndex]) {
wstrHelpName = m_pHelp[dwIndex];
hr = WBEM_S_NO_ERROR;
} else {
hr = WBEM_E_FAILED;
}
} catch (...) {
hr = WBEM_E_OUT_OF_MEMORY;
}
} else {
hr = WBEM_E_INVALID_PARAMETER;
}
return hr;
};
HRESULT
CPerfNameDb::GetHelpName( DWORD dwIndex, LPCWSTR* ppwcsHelpName )
{
HRESULT hr;
if (dwIndex < m_Size && ppwcsHelpName)
{
// Check for a vaild display name
if (m_pHelp[dwIndex])
{
*ppwcsHelpName = m_pHelp[dwIndex];
hr = WBEM_S_NO_ERROR;
}
else
{
hr = WBEM_E_FAILED;
}
} else {
hr = WBEM_E_INVALID_PARAMETER;
}
return hr;
};
#ifdef _DUMP_DATABASE_NAME_
VOID
CPerfNameDb::Dump()
{
if (m_pHelp && m_pCounter)
{
WCHAR pBuff[512];
DWORD i;
for (i=0;i<m_Size;i++)
{
if (m_pCounter[i])
{
StringCchPrintfW(pBuff,512,L"%d %s\n",i,m_pCounter[i]);
OutputDebugStringW(pBuff);
}
}
for (i=0;i<m_Size;i++)
{
if (m_pHelp[i])
{
if (lstrlenW(m_pHelp[i]) > 100)
{
m_pHelp[i][100]=0;
}
StringCchPrintfW(pBuff,512,L"%d %s\n",i,m_pHelp[i]);
OutputDebugStringW(pBuff);
}
}
}
};
#endif
CPerfNameDb::~CPerfNameDb()
{
delete [] m_pMultiCounter;
delete [] m_pMultiHelp;
delete [] m_pCounter;
delete [] m_pHelp;
}