void CSFMClient::Open(DWORD dwAccess, const TCHAR *szMapName)
{
if (m_iOpenFlag)
_Destory();
if (szMapName)
m_pMapName = _wcsdup(szMapName);
else m_pMapName = _wcsdup(DEFAULT_MAPNAME);
m_hFileMap = OpenFileMapping(
dwAccess,
TRUE,
m_pMapName
);
if (m_hFileMap)
{
m_lpFileMapBuffer = MapViewOfFile(
m_hFileMap,
dwAccess,
0,
0,
0
);
}
m_iOpenFlag = 1;
}
void _Destory(GeneralListNode* head)
{
GeneralListNode* cur = head;
while (cur)
{
GeneralListNode* del = cur;
cur = cur->_next;
if (del->_type == SUB)
{
_Destory(del->_subLink);
}
else
{
delete del;
}
}
}
void CSFMServer::Create(const TCHAR *szFileName, const TCHAR *szMapName, DWORD dwSize)
{
if (m_iCreateFlag)
_Destory();
if (szFileName)
m_pFileName = _wcsdup(szFileName);
//else m_pFileName = NULL;
if (szMapName)
m_pMapName = _wcsdup(szMapName);
else m_pMapName = _wcsdup(DEFAULT_MAPNAME);
if (dwSize > 0)
m_dwSize = dwSize;
else m_dwSize = DEFAULT_MAPSIZE;
if (m_pFileName)
{
// file
m_hFile = CreateFile(
m_pFileName,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,//OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
}
else
{
// system
m_hFile = (HANDLE)0xFFFFFFFF;
}
if (m_hFile)
{
m_hFileMap = CreateFileMapping(
m_hFile,
NULL,
PAGE_READWRITE,
0,
m_dwSize,
m_pMapName
);
//使只有一个CSFMServer对象能操作内存对象
//if (m_hFileMap != NULL && ERROR_ALREADY_EXISTS == GetLastError())
//{
// CloseHandle(m_hFileMap);
// m_hFileMap = NULL;
//}
}
if (m_hFileMap)
{
m_lpFileMapBuffer = MapViewOfFile(
m_hFileMap,
FILE_MAP_ALL_ACCESS,//FILE_MAP_WRITE|FILE_MAP_READ,
0,
0,
m_dwSize
);
}
m_iCreateFlag = 1;
}
CSFMServer::~CSFMServer()
{
_Destory();
}
CSFMClient::~CSFMClient()
{
_Destory();
}
~GeneralList()
{
_Destory(_head);
}
