www.pudn.com > WINCEOS.zip > bthns.cxx

// 
// Copyright (c) Microsoft Corporation.  All rights reserved. 
// 
// 
// This source code is licensed under Microsoft Shared Source License 
// Version 1.0 for Windows CE. 
// For a copy of the license visit http://go.microsoft.com/fwlink/?LinkId=3223. 
// 
//------------------------------------------------------------------------------ 
//  
//      Bluetooth Name Space Layer 
//  
//  
// Module Name: 
//  
//      bthns.cxx 
//  
// Abstract: 
//  
//      This file implements the Name Space provider.  This name space provider 
//      lives in btd.dll and is called by Winsock2 during WSASetService 
//      and WSALookup calls. 
//  
//  
//------------------------------------------------------------------------------ 
 
 
#include  
#include  
#include  
#include  
#include  
 
 
 
#define BTHNS_THREAD_SAFTEY 0 
 
#if 0 
 
#if BTHNS_THREAD_SAFTEY 
// Currently there is no need for any thread saftey at this level, 
// leaving code in place (#ifdef'd out) in case this changes. 
// Note that if this is added, would need to be placed in btdrt.dll's DllMain. 
CRITICAL_SECTION	g_bthNsCritSec; 
static int			g_cStartups; 
#endif 
 
BOOL WINAPI DllMain(HANDLE hInstance, DWORD dwReason, LPVOID lpReserved) { 
#if BTHNS_THREAD_SAFTEY 
	switch (dwReason) { 
	case DLL_PROCESS_ATTACH: 
		g_cStartups = 0; 
		InitializeCriticalSection(&g_bthNsCritSec); 
		DisableThreadLibraryCalls ((HMODULE)hInstance); 
		break; 
 
	case DLL_PROCESS_DETACH: 
		DeleteCriticalSection(&g_bthNsCritSec); 
		break; 
 
	default: 
		break; 
	} 
#endif // BTHNS_THREAD_SAFTEY 
	return TRUE; 
} 
#endif // 0 
 
 
int WINAPI BTH_NSPCleanup(LPGUID lpProviderId) { 
#if BTHNS_THREAD_SAFTEY 
	int iError = ERROR_SUCCESS; 
 
	__try { 
		if (memcmp(lpProviderId, &NsId, sizeof(GUID))) 
			iError = WSAEINVAL; 
		else { 
			EnterCriticalSection(&g_bthNsCritSec); 
			g_cStartups--; 
			if (g_cStartups == 0) { 
				// cleanup - currently nothing is allocated at this layer. 
			} 
 
			LeaveCriticalSection(&g_bthNsCritSec); 
		} 
	} 
	__except (EXCEPTION_EXECUTE_HANDLER) { 
		iError = WSAEFAULT; 
	} 
 
	if (iError) { 
		SetLastError(iError); 
		iError = SOCKET_ERROR; 
	} 
	return iError; 
#else 
	return ERROR_SUCCESS; 
#endif // BTHNS_THREAD_SAFTEY 
} 
 
int WSAAPI BTH_NSPSetServiceThunk(LPGUID lpProviderId, LPWSASERVICECLASSINFOW lpServiceClassInfo, LPWSAQUERYSETW lpqsRegInfo, WSAESETSERVICEOP essOperation, DWORD dwControlFlags) { 
	return BthNsSetService(lpqsRegInfo,essOperation,dwControlFlags); 
} 
 
int WSAAPI BTH_NSPLookupServiceBeginThunk(LPGUID pProviderId, LPWSAQUERYSETW pRestrict, LPWSASERVICECLASSINFOW pServiceClass, DWORD ControlFlags, LPHANDLE phLookup) { 
	return BthNsLookupServiceBegin(pRestrict,ControlFlags,phLookup); 
} 
 
int WSAAPI BTH_NSPLookupServiceNextThunk(HANDLE hLookup, DWORD ControlFlags, DWORD *pcBuf, LPWSAQUERYSETW pResults) { 
	return BthNsLookupServiceNext(hLookup,ControlFlags,pcBuf,pResults); 
} 
 
int WINAPI BTH_NSPLookupServiceEndThunk(HANDLE hLookup) { 
	return BthNsLookupServiceEnd(hLookup); 
} 
 
int WSAAPI BTH_NSPRemoveServiceClass(LPGUID pProviderId, LPGUID lpServiceClassId) { 
	ASSERT(0); 
	SetLastError(WSAEOPNOTSUPP); 
	return SOCKET_ERROR; 
} 
 
int WSAAPI BTH_NSPGetServiceClassInfo(LPGUID lpProviderId, LPDWORD lpdwBufSize, LPWSASERVICECLASSINFOW lpServiceClass) { 
	ASSERT(0); 
	SetLastError(WSAEOPNOTSUPP); 
	return SOCKET_ERROR; 
} 
 
int WSAAPI BTH_NSPIoctlThunk(HANDLE hLookup,	DWORD dwControlCode, LPVOID lpvInBuffer, DWORD cbInBuffer, LPVOID lpvOutBuffer, 
                    DWORD cbOutBuffer, LPDWORD lpcbBytesReturned, LPWSACOMPLETION lpCompletion,	LPWSATHREADID lpThreadId)  
{ 
	ASSERT(0); 
	SetLastError(WSAEOPNOTSUPP); 
	return SOCKET_ERROR; 
} 
 
int WINAPI BTH_NSPInstallServiceClass(LPGUID pProviderId, PWSASERVICECLASSINFOW  pServiceClassInfo) { 
	ASSERT(0); 
	SetLastError( WSAEOPNOTSUPP ); 
	return( SOCKET_ERROR ); 
} 
 
// 
//   Called during name space provider installation. 
// 
int WSAAPI NSPStartup(LPGUID lpProviderId, LPNSP_ROUTINE lpnspRoutines) { 
	int iError = ERROR_SUCCESS; 
 
	__try { 
		// should we check the provider id??? 
		 
		// NSPIoctl was apparently newly added so size they give us may not 
		// include it 
		if (lpnspRoutines->cbSize < ((int)(&(((NSP_ROUTINE *)0)->NSPIoctl)))) { 
			iError = WSAEINVAL; 
		} else { 
			lpnspRoutines->dwMajorVersion = 1; 
			lpnspRoutines->dwMinorVersion = 1; 
 
			lpnspRoutines->NSPCleanup = &BTH_NSPCleanup; 
			lpnspRoutines->NSPLookupServiceBegin = &BTH_NSPLookupServiceBeginThunk; 
			lpnspRoutines->NSPLookupServiceNext = &BTH_NSPLookupServiceNextThunk; 
			lpnspRoutines->NSPLookupServiceEnd = &BTH_NSPLookupServiceEndThunk; 
			lpnspRoutines->NSPSetService = &BTH_NSPSetServiceThunk; 
			lpnspRoutines->NSPInstallServiceClass = &BTH_NSPInstallServiceClass; 
			lpnspRoutines->NSPRemoveServiceClass = &BTH_NSPRemoveServiceClass; 
			lpnspRoutines->NSPGetServiceClassInfo = &BTH_NSPGetServiceClassInfo; 
 
#if BTHNS_THREAD_SAFTEY 
			EnterCriticalSection(&g_bthNsCritSec); 
			g_cStartups++; 
			ASSERT(g_cStartups > 0); 
			LeaveCriticalSection(&g_bthNsCritSec); 
#endif // BTHNS_THREAD_SAFTEY 
		} 
	} 
	__except (EXCEPTION_EXECUTE_HANDLER) { 
		iError = WSAEFAULT; 
	} 
 
	if (iError) { 
		SetLastError(iError); 
		iError = SOCKET_ERROR; 
	} 
 
	return iError; 
}