Exemplo n.º 1
0
int sl_Start(const void* pIfHdl, char* pDevName, const P_INIT_CALLBACK pInitCallBack)
{
    int pObjIdx = MAX_CONCURRENT_ACTIONS;
    InitComplete_t  AsyncRsp;
  
    /* callback init */
    _SlDrvDriverCBInit();

    /* open the interface: usually SPI or UART */
    if (NULL == pIfHdl)
    {
        g_pCB->FD = sl_IfOpen(pDevName, 0);
    }
    else
    {
        g_pCB->FD = (_SlFd_t)pIfHdl;
    }

    /* Use Obj to issue the command, if not available try later */
    pObjIdx = _SlDrvWaitForPoolObj(START_STOP_ID, SL_MAX_SOCKETS);
    if (MAX_CONCURRENT_ACTIONS == pObjIdx)
    {
         return SL_POOL_IS_EMPTY;
    }
    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));
    g_pCB->ObjPool[pObjIdx].pRespArgs = (UINT8 *)&AsyncRsp;
    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));


    if( g_pCB->FD >= 0)
    {
        sl_DeviceDisable();

        sl_IfRegIntHdlr((SL_P_EVENT_HANDLER)_SlDrvRxIrqHandler, NULL);

        sl_DeviceEnable();

        if (NULL != pInitCallBack)
        {
            g_pCB->pInitCallback = pInitCallBack;
        }
        else
        {
			OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
	        /*release Pool Object*/
            _SlDrvReleasePoolObj(g_pCB->FunctionParams.AsyncExt.ActionIndex);
			return GetStartResponseConvert(AsyncRsp.Status);
		}
    }

    return (int)g_pCB->FD;
 
}
Exemplo n.º 2
0
int sl_Stop(unsigned short timeout)
{
    int RetVal=0;
    _SlStopMsg_u      Msg;
    _BasicResponse_t  AsyncRsp;
	int				  pObjIdx = MAX_CONCURRENT_ACTIONS;
    /* if timeout is 0 the shutdown is forced immediately */
    if( 0 == timeout ) 
    {
      sl_IfRegIntHdlr(NULL, NULL);
      sl_DeviceDisable();
      RetVal = sl_IfClose(g_pCB->FD);

    }
    else
    {
      /* let the device make the shutdown using the defined timeout */
      Msg.Cmd.Timeout = timeout;
	  /* Use Obj to issue the command, if not available try later */
	  pObjIdx = _SlDrvWaitForPoolObj(START_STOP_ID,SL_MAX_SOCKETS);
	  if (MAX_CONCURRENT_ACTIONS == pObjIdx)
 	  {
		return SL_POOL_IS_EMPTY;
	  }
      OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

      g_pCB->ObjPool[pObjIdx].pRespArgs = (UINT8 *)&AsyncRsp;

      OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));

      VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlStopCmdCtrl, &Msg, NULL));

      if(SL_OS_RET_CODE_OK == (int)Msg.Rsp.status)
      {
         OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
         Msg.Rsp.status = AsyncRsp.status;
         RetVal = Msg.Rsp.status;
      }

      _SlDrvReleasePoolObj(pObjIdx);

      sl_IfRegIntHdlr(NULL, NULL);
      sl_DeviceDisable();
      sl_IfClose(g_pCB->FD);
    }
    _SlDrvDriverCBDeinit();

    return RetVal;
}
Exemplo n.º 3
0
int sl_NetAppDnsGetHostByName(char * hostname, unsigned short usNameLen, unsigned long* out_ip_addr,unsigned char family)
{
    _SlGetHostByNameMsg_u           Msg;
    _SlCmdExt_t                     ExtCtrl;
    _GetHostByNameAsyncResponse_u   AsyncRsp;
	UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;

    ExtCtrl.TxPayloadLen = usNameLen;
    ExtCtrl.RxPayloadLen = 0;
    ExtCtrl.pTxPayload = (UINT8 *)hostname;
    ExtCtrl.pRxPayload = 0;

    Msg.Cmd.Len = usNameLen;
    Msg.Cmd.family = family;

	/*Use Obj to issue the command, if not available try later */
	pObjIdx = _SlDrvWaitForPoolObj(GETHOSYBYNAME_ID,SL_MAX_SOCKETS);
	if (MAX_CONCURRENT_ACTIONS == pObjIdx)
	{
		return SL_POOL_IS_EMPTY;
	}
	OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

	g_pCB->ObjPool[pObjIdx].pRespArgs =  (UINT8 *)&AsyncRsp;
	/*set bit to indicate IPv6 address is expected */
	if (SL_AF_INET6 == family)  
	{
		g_pCB->ObjPool[pObjIdx].AdditionalData |= SL_NETAPP_FAMILY_MASK;
	}
	
    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));

    VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlGetHostByNameCtrl, &Msg, &ExtCtrl));

    if(SL_RET_CODE_OK == Msg.Rsp.status)
    {        
        OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
        Msg.Rsp.status = AsyncRsp.IpV4.status;

        if(SL_OS_RET_CODE_OK == (int)Msg.Rsp.status)
        {
            sl_Memcpy((char *)out_ip_addr,
                      (char *)&AsyncRsp.IpV4.ip0, 
                      (SL_AF_INET == family) ? SL_IPV4_ADDRESS_SIZE : SL_IPV6_ADDRESS_SIZE);
        }
    }
    _SlDrvReleasePoolObj(pObjIdx);
    return Msg.Rsp.status;
}
Exemplo n.º 4
0
/*****************************************************************************
 _sl_HandleAsync_InitComplete - handles init complete signalling to 
                                a waiting object
****************************************************************************/
void _sl_HandleAsync_InitComplete(void *pVoidBuf)
{
    InitComplete_t     *pMsgArgs   = (InitComplete_t *)_SL_RESP_ARGS_START(pVoidBuf);

    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

    if(g_pCB->pInitCallback)
    {
		g_pCB->pInitCallback(GetStartResponseConvert(pMsgArgs->Status));
    }
    else
    {
		memcpy(g_pCB->ObjPool[g_pCB->FunctionParams.AsyncExt.ActionIndex].pRespArgs, pMsgArgs, sizeof(InitComplete_t));
        OSI_RET_OK_CHECK(sl_SyncObjSignal(&g_pCB->ObjPool[g_pCB->FunctionParams.AsyncExt.ActionIndex].SyncObj));
    }
   OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));

   if(g_pCB->pInitCallback)
   {
     _SlDrvReleasePoolObj(g_pCB->FunctionParams.AsyncExt.ActionIndex);
   }
}
Exemplo n.º 5
0
_i16 sl_NetUtilCmd(const _u16 Cmd, const _u8 *pAttrib,  const _u16 AttribLen,
				  const _u8 *pInputValues, const _u16 InputLen,
				  _u8 *pOutputValues, _u16 *pOutputLen)
{
    _i16				RetVal=0;
    SlNetUtilCmdMsg_u   Msg;
    _i16				ObjIdx = MAX_CONCURRENT_ACTIONS;
	_SlCmdExt_t         CmdExt;
	_SlNetUtilCmdData_t OutData;


	/* prepare the Cmd (control structure and data-buffer) */
	Msg.Cmd.Cmd			= Cmd;
	Msg.Cmd.AttribLen	= AttribLen;
	Msg.Cmd.InputLen	= InputLen;
	Msg.Cmd.OutputLen	= *pOutputLen;

	_SlDrvResetCmdExt(&CmdExt);
	_SlDrvMemZero(&OutData, sizeof(_SlNetUtilCmdData_t));

	if(AttribLen > 0)
	{
		CmdExt.pTxPayload1 = (_u8*)pAttrib;
		CmdExt.TxPayload1Len = AttribLen;
	}

	if (InputLen > 0)
	{
		CmdExt.pTxPayload2 = (_u8*)pInputValues;
		CmdExt.TxPayload2Len = InputLen;
	}

	/* Set the pointers to be filled upon the async event reception */
	OutData.pOutputValues = pOutputValues;
	OutData.pOutputLen = pOutputLen;

    ObjIdx = _SlDrvProtectAsyncRespSetting((_u8*)&OutData, NETUTIL_CMD_ID, SL_MAX_SOCKETS);
	if (MAX_CONCURRENT_ACTIONS == ObjIdx)
	{
		return SL_POOL_IS_EMPTY;
	}

	/* send the command */
    VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlNetUtilCmdCtrl, &Msg, &CmdExt));

    if(SL_OS_RET_CODE_OK == (_i16)Msg.Rsp.status)
    {
	/* after the async event is signaled, the data will be copied to the pOutputValues buffer  */
	SL_DRV_SYNC_OBJ_WAIT_FOREVER(&g_pCB->ObjPool[ObjIdx].SyncObj);

	/* the response header status */
	RetVal = OutData.Status;

    }
	else
	{
		RetVal = Msg.Rsp.status;
	}
    _SlDrvReleasePoolObj((_u8)ObjIdx);

    return RetVal;
}
Exemplo n.º 6
0
int sl_Select(int nfds, SlFdSet_t *readsds, SlFdSet_t *writesds, SlFdSet_t *exceptsds, struct SlTimeval_t *timeout)
{
    _SlSelectMsg_u          Msg;
    _SelectAsyncResponse_t  AsyncRsp;
    UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;

    Msg.Cmd.nfds          = nfds;
    Msg.Cmd.readFdsCount  = 0;
    Msg.Cmd.writeFdsCount = 0;

    Msg.Cmd.readFds = 0;
    Msg.Cmd.writeFds = 0;

    if( readsds )
    {
        Msg.Cmd.readFds       = (UINT16)readsds->fd_array[0];
    }
    if( writesds )
    {
        Msg.Cmd.writeFds      = (UINT16)writesds->fd_array[0];
    }
    if( NULL == timeout )
    {
        Msg.Cmd.tv_sec = 0xffff;
        Msg.Cmd.tv_usec = 0xffff;
    }
    else
    {
        if( 0xffff <= timeout->tv_sec )
        {
            Msg.Cmd.tv_sec = 0xffff;
        }
        else
        {
            Msg.Cmd.tv_sec = (UINT16)timeout->tv_sec;
        }
        timeout->tv_usec = timeout->tv_usec >> 10;  /*  convert to milliseconds */
        if( 0xffff <= timeout->tv_usec )
        {
            Msg.Cmd.tv_usec = 0xffff;
        }
        else
        {
            Msg.Cmd.tv_usec = (UINT16)timeout->tv_usec;
        }
    }

    /* Use Obj to issue the command, if not available try later */
    pObjIdx = _SlDrvWaitForPoolObj(SELECT_ID, SL_MAX_SOCKETS);

    if (MAX_CONCURRENT_ACTIONS == pObjIdx)
    {
        return SL_POOL_IS_EMPTY;
    }
    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

    g_pCB->ObjPool[pObjIdx].pRespArgs =  (UINT8 *)&AsyncRsp;

    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));
    /* send the command */
    VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlSelectCmdCtrl, &Msg, NULL));

    if(SL_OS_RET_CODE_OK == (int)Msg.Rsp.status)
    {
        OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
        Msg.Rsp.status = AsyncRsp.status;

        if(  ((int)Msg.Rsp.status) >= 0 )
        {
            if( readsds )
            {
                readsds->fd_array[0]  = AsyncRsp.readFds;
            }
            if( writesds )
            {
                writesds->fd_array[0] = AsyncRsp.writeFds;
            }
        }
    }

    _SlDrvReleasePoolObj(pObjIdx);
    return (int)Msg.Rsp.status;
}
Exemplo n.º 7
0
int sl_Accept(int sd, SlSockAddr_t *addr, SlSocklen_t *addrlen)
{
    _SlSockAcceptMsg_u      Msg;
    _SlReturnVal_t          RetVal;
    _SocketAddrResponse_u   AsyncRsp;

    UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;


    Msg.Cmd.sd = sd;
    Msg.Cmd.family = (sizeof(SlSockAddrIn_t) == *addrlen) ? SL_AF_INET : SL_AF_INET6;

    /* Use Obj to issue the command, if not available try later */
    pObjIdx = _SlDrvWaitForPoolObj(ACCEPT_ID, sd  & BSD_SOCKET_ID_MASK);

    if (MAX_CONCURRENT_ACTIONS == pObjIdx)
    {
        return SL_POOL_IS_EMPTY;
    }

    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

    g_pCB->ObjPool[pObjIdx].pRespArgs = (UINT8 *)&AsyncRsp;

    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));
    /* send the command */
    VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlAcceptCmdCtrl, &Msg, NULL));
    VERIFY_PROTOCOL(Msg.Rsp.sd == sd);

    RetVal = Msg.Rsp.statusOrLen;

    if(SL_OS_RET_CODE_OK == RetVal)
    {
        /*  wait for async and get Data Read parameters */
        OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));

        VERIFY_PROTOCOL(AsyncRsp.IpV4.sd == sd);

        RetVal = AsyncRsp.IpV4.statusOrLen;
        if( (NULL != addr) && (NULL != addrlen) )
        {
#if 0 /*  Kept for backup */
            _sl_ParseAddress(&AsyncRsp, addr, addrlen);
#else
            addr->sa_family = AsyncRsp.IpV4.family;

            if(SL_AF_INET == addr->sa_family)
            {
                if( *addrlen == sizeof( SlSockAddrIn_t ) )
                {
                    ((SlSockAddrIn_t *)addr)->sin_port         = AsyncRsp.IpV4.port;
                    ((SlSockAddrIn_t *)addr)->sin_addr.s_addr  = AsyncRsp.IpV4.address;
                }
                else
                {
                    *addrlen = 0;
                }
            }
            else if (SL_AF_INET6_EUI_48 == addr->sa_family )
            {
                if( *addrlen == sizeof( SlSockAddrIn6_t ) )
                {
                    ((SlSockAddrIn6_t *)addr)->sin6_port                   = AsyncRsp.IpV6EUI48.port    ;
                    /*  will be called from here and from _sl_BuildAddress*/
                    sl_Memcpy(((SlSockAddrIn6_t *)addr)->sin6_addr._S6_un._S6_u8, AsyncRsp.IpV6EUI48.address, 6);
                }
                else
                {
                    *addrlen = 0;
                }
            }
#ifdef SL_SUPPORT_IPV6
            else
            {
                if( *addrlen == sizeof( sockaddr_in6 ) )
                {
                    ((sockaddr_in6 *)addr)->sin6_port                   = AsyncRsp.IpV6.port    ;
                    sl_Memcpy(((sockaddr_in6 *)addr)->sin6_addr._S6_un._S6_u32, AsyncRsp.IpV6.address, 16);
                }
                else
                {
                    *addrlen = 0;
                }
            }
#endif
#endif
        }
    }

    _SlDrvReleasePoolObj(pObjIdx);
    return (int)RetVal;
}
Exemplo n.º 8
0
int sl_Connect(int sd, const SlSockAddr_t *addr, int addrlen)
{
    _SlSockConnectMsg_u  Msg;
    _SlReturnVal_t       RetVal;
    _SlCmdCtrl_t         CmdCtrl = {0, 0, sizeof(_SocketResponse_t)};
    _SocketResponse_t    AsyncRsp;
    UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;


    switch(addr->sa_family)
    {
    case SL_AF_INET :
        CmdCtrl.Opcode = SL_OPCODE_SOCKET_CONNECT;
        CmdCtrl.TxDescLen = sizeof(_SocketAddrIPv4Command_t);
        break;
    case  SL_AF_INET6_EUI_48:
        CmdCtrl.Opcode = SL_OPCODE_SOCKET_CONNECT_V6;
        CmdCtrl.TxDescLen = sizeof(_SocketAddrIPv6EUI48Command_t);
        break;
#ifdef SL_SUPPORT_IPV6
    case AF_INET6:
        CmdCtrl.Opcode = SL_OPCODE_SOCKET_CONNECT_V6;
        CmdCtrl.TxDescLen = sizeof(_SocketAddrIPv6Command_t);
        break;
#endif
    case SL_AF_RF   :
    default:
        return SL_RET_CODE_INVALID_INPUT;
    }

    Msg.Cmd.IpV4.lenOrPadding = 0;
    Msg.Cmd.IpV4.sd = sd;

    _sl_BuildAddress(addr, addrlen, &Msg.Cmd);

    /* Use Obj to issue the command, if not available try later */
    pObjIdx = _SlDrvWaitForPoolObj(CONNECT_ID, sd  & BSD_SOCKET_ID_MASK);

    if (MAX_CONCURRENT_ACTIONS == pObjIdx)
    {
        return SL_POOL_IS_EMPTY;
    }
    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

    g_pCB->ObjPool[pObjIdx].pRespArgs =  (UINT8 *)&AsyncRsp;

    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));

    /* send the command */
    VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&CmdCtrl, &Msg, NULL));
    VERIFY_PROTOCOL(Msg.Rsp.sd == sd)

    RetVal = Msg.Rsp.statusOrLen;

    if(SL_RET_CODE_OK == RetVal)
    {
        /*  wait for async and get Data Read parameters */
        OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));

        VERIFY_PROTOCOL(AsyncRsp.sd == sd);

        RetVal = AsyncRsp.statusOrLen;
    }
    _SlDrvReleasePoolObj(pObjIdx);
    return RetVal;
}
Exemplo n.º 9
0
int sl_NetAppPingStart(SlPingStartCommand_t* pPingParams,unsigned char family,SlPingReport_t *pReport,const P_SL_DEV_PING_CALLBACK pPingCallback)
{
    _SlCmdCtrl_t                CmdCtrl = {0, sizeof(_PingStartCommand_t), sizeof(_BasicResponse_t)};
    _SlPingStartMsg_u           Msg;
    _PingReportResponse_t       PingRsp;
	UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;

    if( 0 == pPingParams->Ip ) // stop any ongoing ping 
    {
       return _SlDrvBasicCmd(SL_OPCODE_NETAPP_PINGSTOP); 
    }

    if(SL_AF_INET == family)
    {
        CmdCtrl.Opcode = SL_OPCODE_NETAPP_PINGSTART;
        memcpy(&Msg.Cmd.ip0, &pPingParams->Ip, SL_IPV4_ADDRESS_SIZE);
    }
    else
    {
        CmdCtrl.Opcode = SL_OPCODE_NETAPP_PINGSTART_V6;
        memcpy(&Msg.Cmd.ip0, &pPingParams->Ip, SL_IPV6_ADDRESS_SIZE);
    }

    Msg.Cmd.pingIntervalTime        = pPingParams->PingIntervalTime;
    Msg.Cmd.PingSize                = pPingParams->PingSize;
    Msg.Cmd.pingRequestTimeout      = pPingParams->PingRequestTimeout;
    Msg.Cmd.totalNumberOfAttempts   = pPingParams->TotalNumberOfAttempts;
    Msg.Cmd.flags                   = pPingParams->Flags;

    if( pPingCallback )
    {	
       pPingCallBackFunc = pPingCallback;
    }
    else
    {
       	/*Use Obj to issue the command, if not available try later */
	pObjIdx = _SlDrvWaitForPoolObj(PING_ID,SL_MAX_SOCKETS);
	if (MAX_CONCURRENT_ACTIONS == pObjIdx)
	{
		return SL_POOL_IS_EMPTY;
	}
       OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));
       /* async response handler for non callback mode */
       g_pCB->ObjPool[pObjIdx].pRespArgs = (UINT8 *)&PingRsp;
       pPingCallBackFunc = NULL;
       OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));
    }


    VERIFY_RET_OK(_SlDrvCmdOp(&CmdCtrl, &Msg, NULL));
	/*send the command*/
    if(CMD_PING_TEST_RUNNING == (int)Msg.Rsp.status || CMD_PING_TEST_STOPPED == (int)Msg.Rsp.status )
    {
        /* block waiting for results if no callback function is used */
        if( NULL == pPingCallback )
        {
            OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
            if( SL_OS_RET_CODE_OK == (int)PingRsp.status )
            {
                CopyPingResultsToReport(&PingRsp,pReport);
            }
            _SlDrvReleasePoolObj(pObjIdx);
        }
    }
    else
    {   /* ping failure, no async response */
        if( NULL == pPingCallback ) 
        {	
            _SlDrvReleasePoolObj(pObjIdx);
        }
    }

    return Msg.Rsp.status;
}
Exemplo n.º 10
0
long sl_NetAppDnsGetHostByService(char			*pServiceName,	/* string containing all (or only part): name + subtype + service */
								  unsigned char	 ServiceLen,
								  unsigned char	 Family,			/* 4-IPv4 , 16-IPv6 */
								  unsigned long  pAddr[], 
								  unsigned long	 *pPort,
								  unsigned short *pTextLen, /* in: max len , out: actual len */
								  char	         *pText
						         )
{
    _SlGetHostByServiceMsg_u         Msg;
    _SlCmdExt_t                      CmdExt ;
    _GetHostByServiceAsyncResponse_t AsyncRsp;
	UINT8 pObjIdx = MAX_CONCURRENT_ACTIONS;

/*
	Note:
	1. The return's attributes are belonged to first service that is found.
	It can be other services with the same service name will response to
	the query. The results of these responses are saved in the peer cache of the NWP, and
	should be read by another API.

	2. Text length can be 120 bytes only - not more
	It is because of constraints in the NWP on the buffer that is allocated for the Async event.

	3.The API waits to Async event by blocking. It means that the API is finished only after an Async event
	is sent by the NWP.

	4.No rolling option!!! - only PTR type is sent.

 
*/
	/*build the attribute part of the command.
	  It contains the constant parameters of the command */

	Msg.Cmd.ServiceLen = ServiceLen;
	Msg.Cmd.AddrLen    = Family;

	/*Build the payload part of the command
	  Copy the service name and text to one buffer.*/
	CmdExt.TxPayloadLen = ServiceLen;
    CmdExt.RxPayloadLen = 0;
    CmdExt.pTxPayload   = (UINT8 *)pServiceName;
    CmdExt.pRxPayload   = NULL;

	/*set pointers to the output parameters (the returned parameters).
	  This pointers are belonged to local struct that is set to global Async response parameter.
	  It is done in order not to run more than one sl_DnsGetHostByService at the same time.
	  The API should be run only if global parameter is pointed to NULL. */
	AsyncRsp.out_pText     = pText;
	AsyncRsp.inout_TextLen = (unsigned short*)pTextLen;
	AsyncRsp.out_pPort     = pPort;
	AsyncRsp.out_pAddr     = (unsigned long *)pAddr;


    /*Use Obj to issue the command, if not available try later */
	pObjIdx = _SlDrvWaitForPoolObj(GETHOSYBYSERVICE_ID,SL_MAX_SOCKETS);

	if (MAX_CONCURRENT_ACTIONS == pObjIdx)
	{
		return SL_POOL_IS_EMPTY;
	}
	
    OSI_RET_OK_CHECK(sl_LockObjLock(&g_pCB->ProtectionLockObj, SL_OS_WAIT_FOREVER));

	g_pCB->ObjPool[pObjIdx].pRespArgs =  (void *)&AsyncRsp;

    OSI_RET_OK_CHECK(sl_LockObjUnlock(&g_pCB->ProtectionLockObj));
	/* set bit to indicate IPv6 address is expected */
	if (SL_AF_INET6 == Family)  
	{
		g_pCB->ObjPool[pObjIdx].AdditionalData |= SL_NETAPP_FAMILY_MASK;
	}
    /* Send the command */
	VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlGetHostByServiceCtrl, &Msg, &CmdExt));

 
	 
    /* If the immediate reponse is O.K. than  wait for aSYNC event response. */
	if(SL_RET_CODE_OK == Msg.Rsp.status)
    {        
		OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[pObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
        
		/* If we are - it means that Async event was sent.
		   The results are copied in the Async handle return functions */
		
		Msg.Rsp.status = AsyncRsp.Status;
    }

    _SlDrvReleasePoolObj(pObjIdx);
    return Msg.Rsp.status;
}