File content as of revision 39:89e023ea5968:

#include "eth.h"

vz_eth::vz_eth(){
    udp_server.set_blocking( false, 2 );
    udp_server.bind( UDP_PORT_LISTENER );
}


char * vz_eth::listen_eth_udp( char * buffer, int *length ){
    // OBS sizeof( buffer ) == 4 ????
    //*length = server.receiveFrom( client, buffer, sizeof( buffer ) );
    *length = udp_server.receiveFrom( udp_client, buffer, __UDP_ETH_BUFFER_SIZE__ );
    
    if( *length > 0 ){
        buffer[ *length ] = '\0';
        buffer[ strlen( buffer ) - 1 ] = '\0';
            debug_msg("Received UDP Pkg :: %s", buffer );
        return( buffer );
    }else return( NULL );
}

int vz_eth::is_start_pkg( uint8_t * data ){
    //seq_num must to be 0s
    if( !data ) return -1; 
    
    for( register int i = __VZ_HEADER_OFFSET__; i < __UDP_ETH_BUFFER_SIZE__; i++ ) if( data[ i ] ) return( 0 );
    
    return( 1 );
}

int vz_eth::is_stop_pkg( uint8_t * data ){
    //seq_num must to be 0s
    if( !data ) return -1; 
    
    for( register int i = __VZ_HEADER_OFFSET__; i < __UDP_ETH_BUFFER_SIZE__; i++ ) if( data[ i ] ) return( 0 );
    
    return( 1 );
}


int vz_eth::is_time_to_stop( uint8_t * data ){
    static int count = 0;
    if( !data ) return( 0 );
    
    if( is_stop_pkg( data ) == 1 ) count++;
    
    else count = 0;
    
    if( count == 10 ) return( 1 );
    
    else return( 0 );
}