[Failed to connect in TeamSpeak3 SDK]

Thank you so much, Pete.

Then I will only compile 32-bit apps.

 

zea

[Failed to connect in TeamSpeak3 SDK]

Hmm. System Error 6 is "Invalid Handle". The only handle there is the special one, 0xFFFFFFFF, which is specifically needed for a system paging file. Here's what the CreateFileMapping documentation says:

 

"If hFile is INVALID_HANDLE_VALUE, the calling process must also specify a size for the file mapping object in the dwMaximumSizeHigh and dwMaximumSizeLow parameters. In this scenario,CreateFileMapping creates a file mapping object of a specified size that is backed by the system paging file instead of by a file in the file system."

 

INVALID_HANDLE_VALUE is actually defined as -1. Are you trying to compile in 64-bit mode? Try -1 instead. Maybe 0xFFFFFFFF is coming out as 0x00000000FFFFFFFF instead of 0xFFFFFFFFFFFFFFFF.

 

Pete

 

Thank you Pete.

I am sorry for my late reply, I've been away from my computer for several days.

 

Yes, I am trying to compile in 64-bit mode, and the same code runs pretty good in 32-bit mode.

I just tried 0xFFFFFFFFFFFFFFFF, and m_hMap gets 64, while in 32-bit mode it should be 96.

And after several lines, the program goes wrong again .

 

The error message is "Unhanled exception at 0x5168b3d9(msvcr100d.dll) in test.exe: 0xC0000005: Access violation writing location 0x0000000139800004."

 

 

here are part of the codes, and I have added comments.

        // create the file-mapping object
	m_hMap = CreateFileMapping(
					(HANDLE)0xFFFFFFFFFFFFFFFF, // use system paging file
					NULL,               // security
					PAGE_READWRITE,     // protection
					0, MAX_SIZE+256,       // size
					szName);            // name 



	//============m_hMap get 64, diffrent from 96 in 32-bit mode.============

	if ((m_hMap == 0) || (GetLastError() == ERROR_ALREADY_EXISTS))
	{	*pdwResult = FSUIPC_ERR_MAP;
		FSUIPC_Close();
		return FALSE;    
	}

	// get a view of the file-mapping object
	m_pView = (BYTE*)MapViewOfFile(m_hMap, FILE_MAP_WRITE, 0, 0, 0);

	// m_pView is different every time I run it. an example value is 1638400

	if (m_pView == NULL)
	{	*pdwResult = FSUIPC_ERR_VIEW;
		FSUIPC_Close();
		return FALSE;
	}


	// Okay, now determine FSUIPC version AND FS type
	m_pNext = m_pView;

	// Try up to 5 times with a 100mSec rest between each
	// Note that WideClient returns zeroes initially, whilst waiting
	// for the Server to get the data
	while ((i++ < 5) && ((FSUIPC_Version == 0) || (FSUIPC_FS_Version == 0)))
	{	// Read FSUIPC version
		if (!FSUIPC_Read(0x3304, 4, &FSUIPC_Version, pdwResult))
		{	FSUIPC_Close();
			return FALSE;
		}

		// and FS version and validity check pattern
		if (!FSUIPC_Read(0x3308, 4, &FSUIPC_FS_Version, pdwResult))
		{	FSUIPC_Close();
			return FALSE;
		}

		// Write our Library version number to a special read-only offset
		// This is to assist diagnosis from FSUIPC logging
		// But only do this on first try
		if ((i < 2) && !FSUIPC_Write(0x330a, 2, &FSUIPC_Lib_Version, pdwResult))
		{	FSUIPC_Close();
			return FALSE;
		}

		//========================= the code goes wrong below ======================

		// Actually send the requests and get the responses ("process")
		if (!FSUIPC_Process(pdwResult))
		{	FSUIPC_Close();
			return FALSE;
		}

		// Maybe running on WideClient, and need another try
		Sleep(100); // Give it a chance
	}

The error is in the function BOOL FSUIPC_Process(DWORD *pdwResult).

part of the code are below.

BOOL FSUIPC_Process(DWORD *pdwResult)
{	DWORD dwError;
	DWORD *pdw;
	FS6IPC_READSTATEDATA_HDR *pHdrR;
	FS6IPC_WRITESTATEDATA_HDR *pHdrW;
	int i = 0;
	
	if (!m_pView)
	{	*pdwResult = FSUIPC_ERR_NOTOPEN;
		return FALSE;
	}

	if (m_pView == m_pNext)
	{	*pdwResult = FSUIPC_ERR_NODATA;
		return FALSE;
	}

	ZeroMemory(m_pNext, 4); // Terminator
	m_pNext = m_pView;
	
	// send the request (allow up to 9 tries)
	while ((++i < 10) && !SendMessageTimeout(
			m_hWnd,       // FS6 window handle
			m_msg,        // our registered message id
			m_atom,       // wParam: name of file-mapping object
			0,            // lParam: offset of request into file-mapping obj
			SMTO_BLOCK,   // halt this thread until we get a response
			2000,			  // time out interval
			&dwError))    // return value
	{	Sleep(100); // Allow for things to happen
	}

	if (i >= 10) // Failed all tries?
	{	*pdwResult = GetLastError() == 0 ? FSUIPC_ERR_TIMEOUT : FSUIPC_ERR_SENDMSG;
		return FALSE;
	}

	if (dwError != FS6IPC_MESSAGE_SUCCESS)
	{	*pdwResult = FSUIPC_ERR_DATA; // FSUIPC didn't like something in the data!
		return FALSE;
	}

	// Decode and store results of Read requests
	pdw = (DWORD *) m_pView;

	while (*pdw)
	{	switch (*pdw)
		{	case FS6IPC_READSTATEDATA_ID:
				pHdrR = (FS6IPC_READSTATEDATA_HDR *) pdw;
				m_pNext += sizeof(FS6IPC_READSTATEDATA_HDR);
				if (pHdrR->pDest && pHdrR->nBytes)
					CopyMemory(pHdrR->pDest, m_pNext, pHdrR->nBytes);
				//===========  Visual Studio breaks in the next line.====================
				m_pNext += pHdrR->nBytes;
				break;

			case FS6IPC_WRITESTATEDATA_ID:
				// This is a write, so there's no returned data to store
				pHdrW = (FS6IPC_WRITESTATEDATA_HDR *) pdw;
				m_pNext += sizeof(FS6IPC_WRITESTATEDATA_HDR) + pHdrW->nBytes;
				break;

			default:
				// Error! So terminate the scan
				*pdw = 0;
				break;
		}
...

Thanks!

 

zea

[Failed to connect in TeamSpeak3 SDK]

Sorry, you only show the one line, and I don't know what your szName parameter is. A return of 0 means a failure, so use GetLastError() to get the error number to see why it failed.

 

Pete

 

Thank you for your reply.

 

I use printf() to display the value of szName and GetLastError().

szName is "FsasmLib:IPC:1AC0:1" . Note that "1AC0" changes every time I run the plugin.

GetLastError() returns 6.

 

 

I am not sure whether related code is helpful because it is just part of the FSUIPC demo. I put it below and I have added comment where my program failed.

BOOL FSUIPC_Open(DWORD dwFSReq, DWORD *pdwResult)
{  char szName[MAX_PATH];
	static int nTry = 0;
	BOOL fWideFS = FALSE;
	int i = 0;

	// abort if already started
	if (m_pView)
	{	*pdwResult = FSUIPC_ERR_OPEN;
		return FALSE;
	}

	// Clear version information, so know when connected
	FSUIPC_Version = FSUIPC_FS_Version = 0;
	
	// Connect via FSUIPC, which is known to be FSUIPC's own
	// and isn't subject to user modificiation
	m_hWnd = FindWindowEx(NULL, NULL, "UIPCMAIN", NULL);
	if (!m_hWnd)
	{	// If there's no UIPCMAIN, we may be using WideClient
		// which only simulates FS98
		m_hWnd = FindWindowEx(NULL, NULL, "FS98MAIN", NULL);
		fWideFS = TRUE;
		if (!m_hWnd)
		{	*pdwResult = FSUIPC_ERR_NOFS;
			return FALSE;
		}
	}
	
	// register the window message
	m_msg = RegisterWindowMessage(FS6IPC_MSGNAME1);
	if (m_msg == 0)
	{	*pdwResult = FSUIPC_ERR_REGMSG;
		return FALSE;
	}

	// create the name of our file-mapping object
	nTry++; // Ensures a unique string is used in case user closes and reopens
	wsprintf(szName, FS6IPC_MSGNAME1 ":%X:%X", GetCurrentProcessId(), nTry);


	// stuff the name into a global atom
	m_atom = GlobalAddAtom(szName);
	if (m_atom == 0)
   {	*pdwResult = FSUIPC_ERR_ATOM;
		FSUIPC_Close();
		return FALSE;
	}

	// create the file-mapping object
	m_hMap = CreateFileMapping(
					(HANDLE)0xFFFFFFFF, // use system paging file
					NULL,               // security
					PAGE_READWRITE,     // protection
					0, MAX_SIZE+256,       // size
					szName);            // name 

//=====================The function above returns 0, as a result the connection fail.===============


	if ((m_hMap == 0) || (GetLastError() == ERROR_ALREADY_EXISTS))
	{	*pdwResult = FSUIPC_ERR_MAP;
		FSUIPC_Close();
		return FALSE;    
	}


	...
}

Best regards,

zea

[Failed to connect in TeamSpeak3 SDK]

Dear Pete,

 

I am now on a project that automantically switch channel in TeamSpeak3(TS3) according to the COM1 frequncy in FS2004.

 

TS3 offers a SDK that can easily build a plugin(DLL file) for it.

 

Based on the TS3 SDK demo, I added FSUIPC related files , but I failed to connect to the FSUIPC: FSUIPC_Open()  returned False.

 

I debuged it, and found that in FSUIPC_Open(),

m_hMap = CreateFileMapping(
					(HANDLE)0xFFFFFFFF, // use system paging file
					NULL,               // security
					PAGE_READWRITE,     // protection
					0, MAX_SIZE+256,       // size
					szName);     

m_hMap got 0. But in FSUIPC demo, it should be 96.

 

 

I am wondering what kind of  modificatiosn should be done to my code so it can connect to FSUIPC .

 

 

 

kind regards,

zea