windows-nt/Source/XPSP1/NT/admin/wmi/wbem/winmgmt/xfiles/filecach.cpp

127 lines
2.1 KiB
C++
Raw Normal View History

2020-09-26 03:20:57 -05:00
/*++
Copyright (C) 2000-2001 Microsoft Corporation
--*/
#include <windows.h>
#include <stdio.h>
#include <wbemcomn.h>
#include <reposit.h>
#include "filecach.h"
#include "creposit.h"
long CFileCache::InnerInitialize(LPCWSTR wszBaseName)
{
long lRes;
wcscpy(m_wszBaseName, wszBaseName);
wcscat(m_wszBaseName, L"\\");
m_dwBaseNameLen = wcslen(m_wszBaseName);
lRes = m_TransactionManager.Init();
if(lRes != ERROR_SUCCESS)
return lRes;
lRes = m_TransactionManager.BeginTrans();
if (lRes != ERROR_SUCCESS)
return lRes;
lRes = m_ObjectHeap.Initialize(&m_TransactionManager,
(WCHAR*)wszBaseName,
m_dwBaseNameLen);
if(lRes != ERROR_SUCCESS)
{
m_TransactionManager.RollbackTrans();
}
else
{
lRes = m_TransactionManager.CommitTrans();
if (lRes != ERROR_SUCCESS)
m_TransactionManager.RollbackTrans();
}
return lRes;
}
long CFileCache::RepositoryExists(LPCWSTR wszBaseName)
{
CFileName wszStagingName;
if (wszStagingName == NULL)
return ERROR_OUTOFMEMORY;
swprintf(wszStagingName, L"%s\\index.btr", wszBaseName);
DWORD dwAttributes = GetFileAttributesW(wszStagingName);
if (dwAttributes == -1)
return ERROR_FILE_NOT_FOUND;
return ERROR_SUCCESS;
}
long CFileCache::Initialize(LPCWSTR wszBaseName)
{
long lRes;
if (m_bInit)
return ERROR_SUCCESS;
lRes = RepositoryExists(wszBaseName);
if (ERROR_FILE_NOT_FOUND == lRes)
{
//If we have a database restore to do, go ahead and do it...
lRes = DoAutoDatabaseRestore();
}
//
// Initialize file cache. It will read the registry itself to find out
// its size limitations
//
if (SUCCEEDED(lRes))
{
lRes = InnerInitialize(wszBaseName);
if (ERROR_SUCCESS == lRes)
{
m_bInit = TRUE;
}
}
return lRes;
}
CFileCache::CFileCache()
: m_lRef(1), m_bInit(FALSE)
{
}
CFileCache::~CFileCache()
{
}
long CFileCache::Uninitialize(DWORD dwShutDownFlags)
{
if (!m_bInit)
return 0;
Clear(dwShutDownFlags);
m_bInit = FALSE;
return 0;
}