www.pudn.com > GPRSDemo.rar > ConnectManager.cpp

#include "StdAfx.h" 
#include "ConnectManager.h" 
 
// for connect manager function 
#include  
#pragma comment ( lib, "Cellcore.lib" ) 
 
CConnectManager::CConnectManager(void) 
	: m_hConnection ( NULL ) 
{ 
} 
 
CConnectManager::~CConnectManager(void) 
{ 
	ReleaseConnection (); 
} 
 
BOOL CConnectManager::GetConnMgrAvailable() 
{ 
	HANDLE hConnMgr = ConnMgrApiReadyEvent (); 
	BOOL bAvailbale = FALSE; 
	DWORD dwResult = ::WaitForSingleObject ( hConnMgr, 2000 ); 
	if ( dwResult == WAIT_OBJECT_0 ) 
	{ 
		bAvailbale = TRUE; 
	} 
 
	// 关闭 
	if ( hConnMgr ) CloseHandle ( hConnMgr ); 
 
	return bAvailbale; 
} 
 
int CConnectManager::MapURLAndGUID ( LPCTSTR lpszURL, OUT GUID &guidNetworkObject, OUT CString *pcsDesc/*=NULL*/ ) 
{ 
	if ( !lpszURL || lstrlen(lpszURL) < 1 ) 
		return FALSE; 
 
	memset ( &guidNetworkObject, 0, sizeof(GUID) ); 
	int nIndex = 0; 
	HRESULT hResult = ConnMgrMapURL ( lpszURL, &guidNetworkObject, (DWORD*)&nIndex ); 
	if ( FAILED(hResult) ) 
	{ 
		nIndex = -1; 
		DWORD dwLastError = GetLastError (); 
		AfxMessageBox ( _T("Could not map a request to a network identifier") ); 
	} 
	else 
	{ 
		if ( pcsDesc ) 
		{ 
			CONNMGR_DESTINATION_INFO DestInfo = {0}; 
			if ( SUCCEEDED(ConnMgrEnumDestinations(nIndex, &DestInfo)) ) 
			{ 
				*pcsDesc = DestInfo.szDescription; 
			} 
		} 
	} 
 
	return nIndex; 
} 
 
void CConnectManager::EnumNetIdentifier ( OUT CStringArray &StrAry ) 
{ 
	CONNMGR_DESTINATION_INFO networkDestInfo = {0}; 
 
	// 得到网络列表 
	for ( DWORD dwEnumIndex=0; ; dwEnumIndex++ ) 
	{ 
		memset ( &networkDestInfo, 0, sizeof(CONNMGR_DESTINATION_INFO) ); 
		if ( ConnMgrEnumDestinations ( dwEnumIndex, &networkDestInfo ) == E_FAIL ) 
		{ 
			break; 
		} 
		StrAry.Add ( networkDestInfo.szDescription ); 
	} 
} 
 
BOOL CConnectManager::EstablishConnection ( DWORD dwIndex ) 
{ 
	// 释放之前的连接 
	ReleaseConnection (); 
 
	// 得到正确的连接信息 
	CONNMGR_DESTINATION_INFO DestInfo = {0}; 
	HRESULT hResult = ConnMgrEnumDestinations(dwIndex, &DestInfo); 
	BOOL bRet = FALSE; 
	if(SUCCEEDED(hResult)) 
	{ 
		// 初始化连接结构 
		CONNMGR_CONNECTIONINFO ConnInfo; 
 
		ZeroMemory(&ConnInfo, sizeof(ConnInfo)); 
		ConnInfo.cbSize = sizeof(ConnInfo); 
		ConnInfo.dwParams = CONNMGR_PARAM_GUIDDESTNET; 
		ConnInfo.dwFlags = CONNMGR_FLAG_PROXY_HTTP | CONNMGR_FLAG_PROXY_WAP | CONNMGR_FLAG_PROXY_SOCKS4 | CONNMGR_FLAG_PROXY_SOCKS5; 
		ConnInfo.dwPriority = CONNMGR_PRIORITY_USERINTERACTIVE; 
		ConnInfo.guidDestNet = DestInfo.guid; 
		ConnInfo.bExclusive	= FALSE;  
		ConnInfo.bDisabled = FALSE; 
 
		DWORD dwStatus = 0; 
		hResult = ConnMgrEstablishConnectionSync(&ConnInfo, &m_hConnection, 10*1000, &dwStatus ); 
		if(FAILED(hResult)) 
		{ 
			m_hConnection = NULL; 
		} 
		else bRet = TRUE; 
	} 
 
	return bRet; 
} 
 
BOOL CConnectManager::WaitForConnected ( int nTimeoutSec, DWORD *pdwStatus/*=NULL*/ ) 
{ 
	DWORD dwStartTime = GetTickCount (); 
	BOOL bRet = FALSE; 
	while ( GetTickCount ()-dwStartTime < (DWORD)nTimeoutSec * 1000 ) 
	{ 
		if ( m_hConnection ) 
		{ 
			DWORD dwStatus = 0; 
			HRESULT hr = ConnMgrConnectionStatus ( m_hConnection, &dwStatus ); 
			if ( pdwStatus ) *pdwStatus = dwStatus; 
			if ( SUCCEEDED(hr) ) 
			{ 
				if ( dwStatus == CONNMGR_STATUS_CONNECTED ) 
				{ 
					bRet = TRUE; 
					break; 
				} 
			} 
		} 
		Sleep ( 100 ); 
	} 
 
	return bRet; 
} 
 
void CConnectManager::ReleaseConnection () 
{ 
	if ( m_hConnection ) 
	{ 
		ConnMgrReleaseConnection(m_hConnection, FALSE); 
		m_hConnection = NULL; 
	} 
}