CC3100MOD: TCP multiple client connections

Hi,

Please search for tutorial for BSD sockets, for example:
- TCP server for multiple clients using select: www.binarytides.com/.../
- TCP server for multiple clients using threads/tasks: www.binarytides.com/.../

Jan

Hi Hnz,
Thanks for your reply. This is linux example. Do you have any RTOS example for CC3100.

Regards,
Aravinth

Hi,

It is not important that example is for Linux. Important this is that this examples use BSD sockets.

Jan

Hi Jan,
I tried from your example. It's receiving some packet and it goes to StackOverFlow (vApplicationStackOverflowHook)

Regards,
Aravinth

Hi,

You need properly implement memory/thread handling according your platform. This examples are not "ready to use" at all platforms. This examples you can use as base for your code. In this examples is well described how works BSD sockets in TCP server for multiple clients.

Jan

Hi Jan,

This is my code. I'm facing StackOverFlow (vApplicationStackOverflowHook) error. Can you tell any this you found as wrong on this code.

#define STACKSIZE_WiFiTASK       256

#define STACKSIZE_WiFiRevTASK       128

static _i32 WIFI_TcpServerInit(_u16 Port)

{

  LocalAddr.sin_family = SL_AF_INET;

   LocalAddr.sin_port = sl_Htons((_u16)Port);

   LocalAddr.sin_addr.s_addr = 0;

   SockID = sl_Socket(SL_AF_INET,SL_SOCK_STREAM, 0);

   if( SockID < 0 )

   {

    UARTprintf(" [TCP Server] Create socket Error \n\r");

       ASSERT_ON_ERROR(SockID);

   }

   UARTprintf(" [TCP Server] Create socket success \n\r");

   AddrSize = sizeof(SlSockAddrIn_t);

   Status = sl_Bind(SockID, (SlSockAddr_t *)&LocalAddr, AddrSize);

   if( Status < 0 )

   {

       sl_Close(SockID);

       UARTprintf(" [TCP Server] Socket address assignment Error \n\r");

       ASSERT_ON_ERROR(Status);

   }

   UARTprintf(" [TCP Server] Socket address assignment Success \n\r");

   Status = sl_Listen(SockID, 7);

   if( Status < 0 )

   {

       sl_Close(SockID);

       UARTprintf(" [TCP Server] Listen Error \n\r");

       ASSERT_ON_ERROR(Status);

   }

   UARTprintf(" [TCP Server] Listen Success \n\r");

   while(1)

   {

    newSockID = sl_Accept(SockID, ( struct SlSockAddr_t *)&Addr,

                             (SlSocklen_t*)&AddrSize);

   if( newSockID < 0 )

   {

       sl_Close(SockID);

       UARTprintf(" [TCP Server] Accept connection Error \n\r");

       ASSERT_ON_ERROR(newSockID);

   }

   UARTprintf(" [TCP Server] Accept connection Success \n\r");

   UARTprintf("Connection Count = %d \r\n",++count);

   TCPServer_RevDataTaskInit(newSockID);

   }

//*****************************************************************************

//

// This is CC3100 WiFi TCPServer_RevDataTask

//

//*****************************************************************************

static void

TCPServer_RevDataTask(void *pvParameters)

{

   _i16          Status = 0;

   _u16 count = 0;

   _i16          recvSize = 0;

   UARTprintf(" [TCP Server] pvParameters = %d \n\r",pvParameters);

   while (1)

    {

        recvSize = BUF_SIZE;

        do

        {

        Status = WIFI_TcpServerRevData((uint32_t)pvParameters, &(data_buf[BUF_SIZE - recvSize]), recvSize, 0);

            if( Status <= 0 )

            {

            WIFI_TcpServerClose((uint32_t)pvParameters);

            UARTprintf(" [TCP Server] Data recv Error \n\r");

               // wifi_connection = false;

               // ASSERT_ON_ERROR(TCP_RECV_ERROR);

            }

              recvSize -= Status;

        }while(recvSize > 0);

        UARTprintf("[TCP Server] pvParameters = %d Count = %d \r\n", pvParameters, ++count);

    }

}

//*****************************************************************************

//

// Initializes the TCPServer_RevDataTaskInittask.

//

//*****************************************************************************

uint32_t

TCPServer_RevDataTaskInit(_i16 TCPSockID)

{

   //

   // Create the WiFi task.

   //

   if(xTaskCreate(TCPServer_RevDataTask, (const portCHAR *)"TCPServer_RevDataTask",

    STACKSIZE_WiFiRevTASK, (void *)TCPSockID,

                  tskIDLE_PRIORITY + PRIORITY_WiFi_TASK, NULL) != pdTRUE)

   {

       return(1);

   }

 

Regards,

Aravinth