HOW TO SEND nested structure through tcp ip

swansorter

Hi sir , this my structure representation


struct request_packet
{
    uint8_t xx;
    uint8_t yy;
    struct payload
    {
        struct A
        {
            uint8_t a1;
        }aa;
        struct B
        {
            //float c[3][3];
            uint32_t  b1[6][3][3];
            uint32_t b2;
            uint32_t b3;
            uint32_t b4[6];
        }bb;
        struct C
        {
            uint8_t c1;
            uint32_t c2;
            uint32_t c3;
        }cc;

    }m;

};

i want to send only request_packet with payload B but if send data through socket whole structure data are transmitting.

this is my code init and send data through tcp socket

   struct request_packet_dkk s3,s1;
    uint8_t xx;
    uint8_t yy;
                s3.m.B.b1[0][0][0]=1;
                s3.m.B.b1[0][0][1]=2;
                s3.m.B.b1[0][0][2]=3;
                s3.m.B.b1[0][1][0]=4;
                s3.m.B.b1[0][1][1]=5;
                s3.m.B.b1[0][1][2]=6;
                s3.m.B.b1[0][2][0]=7;
                s3.m.B.b1[0][2][1]=8;
                s3.m.B.b1[0][2][2]=9;

                s3.m.B.b1[1][3][2]=11;
                s3.m.B.b1[1][3][3]=12;
                s3.m.B.b1[1][3][4]=13;
                s3.m.B.b1[1][4][5]=14;
                s3.m.B.b1[1][4][6]=15;
                s3.m.B.b1[1][4][0]=16;
                s3.m.B.b1[1][5][1]=17;
                s3.m.B.b1[1][5][2]=18;
                s3.m.B.b1[1][5][3]=19;

                s3.m.B.b1[2][6][4]=21;
                s3.m.B.b1[2][6][5]=22;
                s3.m.B.b1[2][6][6]=23;
                s3.m.B.b1[2][0][0]=24;
                s3.m.B.b1[2][0][1]=25;
                s3.m.B.b1[2][0][2]=26;
                s3.m.B.b1[2][1][3]=27;
                s3.m.B.b1[2][1][4]=28;
                s3.m.B.b1[2][1][5]=29;

                s3.m.B.b1[3][2][6]=31;
                s3.m.B.b1[3][2][0]=32;
                s3.m.B.b1[3][2][1]=33;
                s3.m.B.b1[3][3][2]=34;
                s3.m.B.b1[3][3][3]=35;
                s3.m.B.b1[3][3][4]=36;
                s3.m.B.b1[3][4][5]=37;
                s3.m.B.b1[3][4][6]=38;
                s3.m.B.b1[3][4][0]=39;

                s3.m.B.b1[4][5][1]=41;
                s3.m.B.b1[4][5][2]=42;
                s3.m.B.b1[4][5][3]=43;
                s3.m.B.b1[4][6][4]=44;
                s3.m.B.b1[4][6][5]=45;
                s3.m.B.b1[4][6][6]=46;
                s3.m.B.b1[4][0][0]=47;
                s3.m.B.b1[4][0][1]=48;
                s3.m.B.b1[4][0][2]=49;

                s3.m.B.b1[5][1][3]=51;
                s3.m.B.b1[5][1][4]=52;
                s3.m.B.b1[5][1][5]=53;
                s3.m.B.b1[5][2][6]=54;
                s3.m.B.b1[5][2][0]=55;
                s3.m.B.b1[5][2][1]=56;
                s3.m.B.b1[5][3][2]=57;
                s3.m.B.b1[5][3][3]=58;
                s3.m.B.b1[5][3][4]=59;



                //s3.m.B.b1[6][4][5]=122;
                //s3.m.B.b1[6][4][6]=123;
                //s3.m.B.b1[6][4][0]=123;
                //s3.m.B.b1[6][5][1]=111;
                //s3.m.B.b1[6][5][2]=193;
                //s3.m.B.b1[6][5][3]=168;
                //s3.m.B.b1[6][6][4]=186;
                //s3.m.B.b1[6][6][5]=124;
                //s3.m.B.b1[6][6][6]=187;
                s3.m.B.b2=1;
                s3.m.B.b3=1;
                s3.m.B.b4[0]=0xAA;
                s3.m.B.b4[1]=0xAA;
                s3.m.B.b4[2]=0xAA;
                s3.m.B.b4[3]=0xAA;
                s3.m.B.b4[4]=0xAA;
                s3.m.B.b4[5]=0xAA;

                client->write_data(QByteArray( reinterpret_cast<char*>(&s3),sizeof(s3)));

SGaist

Hi,

It's your job to extract the data you want and only send that part.