NetBurner Community Forum

Code: Select all

int fileDownloadSocket;
F_FILE *f fileToDownload;
int MyDoGet( int sock, PSTR url, PSTR rxBuffer )
{
	  // 'MyDoGet' code from NB example...
	  
   if ( f_chdir( dir_buffer ) == F_NO_ERROR )
   {
      if ( name_buffer[0] == 0 )
      {

	  // 'MyDoGet' code from NB example...
	  
      }
      else  // A file name was specified in the URL, so attempt to open it
      {

		 //iprintf("  Attempting to open file \"%s\"...", pName);

		 fileToDownload = f_open( pName, "r" );

		 if ( fileToDownload != NULL )
		 {
			len = f_filelength( pName );


			fileDownloadSocket = sock;

			Byte result = OSTaskCreate( SendFragment_TaskFunction,
				   ( void * ) &fileDownloadSocket,
				   ( void * ) &FileSendingTaskStack[USER_TASK_STK_SIZE],
				   ( void * ) FileSendingTaskStack,
				   DL25Class::HTTPFileSendingPriority ) ;	// HTTPFileSendingPriority = 52


			if(result == OS_NO_ERR)
			{

			}
			else
			{
			//TODO: File sending thread start error
			}

			//iprintf(" File sent to browser\r\n");
			
		  // From Netburner forum (http://forum.embeddedethernet.com/viewtopic.php?f=5&t=1650):
		  // "Anyways, the reason for the return value is once upon a time it was requested that the get handler have the ability to not close the socket when
		  //  it finished (like transferring a 500MB file using a secondary task). The return value determines what to do. In the event that the get handler returns 2,
		  //  the webserver will not terminate the connection, with the understanding that the socket is now owned by a different task. And no, I don't know why 2 was chosen and/or why
		  //  this wasn't documented. 0 and 1 appear to have, once upon a time, been used in internal diagnostics, but are as of now unused."

			iprintf("http get: URL: %s \nreturn value: %d\nsocket: %d\n",url, 2, sock);
			return 2;

		 }
//		 else
//		 {
//			//iprintf(" file does not exist on flash card, will look in compiled application image\r\n");
//		 }
    	  

         // If the word "DIR" is specified in the URL at any directory level,
         // this code will result in a directory listng.
         if ( httpstricmp( pName, "DIR" ) )
         {
            WebListDir( sock, dir_buffer );
            iprintf("http get: URL: %s \nreturn value: %d\nsocket: %d\n",url, 0, sock);
            return 0;
         }
      }
   }


   int retVal = ( *oldhand ) ( sock, url, rxBuffer );

   //iprintf("http get: URL: %s \nreturn value: %d\nsocket: %d\n",url, retVal, sock);
   return retVal;
}

void SendFragment_TaskFunction(void* sock)
{

	 //iprintf("  Attempting to open file \"%s\"...", pName);
	 //F_FILE *f = f_open( pName, "r" );

	 int* pSocket = (int*)sock;

	 iprintf("send fragment started on socket: %d..", *pSocket);
	 if ( fileToDownload != NULL )
	 {
		//long len = f_filelength( pName );

		SendFragment( *pSocket, fileToDownload, len, false );

		f_close( fileToDownload );
	 }
	 else
	 {
		 iprintf("File open failed..\n");

	 }

	 iprintf("send fragment thread finished  Socket: %d\n", *pSocket);

}

Code: Select all

ActiveHTTPSocket = 0;

Code: Select all

                  if ( HTTPRequest.Respond( ActiveHTTPSocket ) == 2 )
                  {
                     ActiveHTTPSocket = 0;
                     continue;
                  }