bug in R13B01 inet:setopt(high_watermark)

[Feng Yu]

Hi,

Maybe a bug in R13B01 erts/emulator/drivers/common/inet_drv.c:L 4674 found:

 case INET_LOPT_TCP_HIWTRMRK:
            if (desc->stype == SOCK_STREAM) {
                tcp_descriptor* tdesc = (tcp_descriptor*) desc;

                fprintf(stderr, "hiwtrmrk:%d\n", ival);

                if (ival < 0) ival = 0;
                else if (ival > INET_MAX_BUFFER*2) ival = INET_MAX_BUFFER*2;
                if (tdesc->low > ival)
                    tdesc->low = ival;
                tdesc->high = ival;
            }
            continue;

        case INET_LOPT_TCP_LOWTRMRK:
            if (desc->stype == SOCK_STREAM) {
                tcp_descriptor* tdesc = (tcp_descriptor*) desc;
                if (ival < 0) ival = 0;
                else if (ival > INET_MAX_BUFFER) ival = INET_MAX_BUFFER;
                if (tdesc->high < ival)
                    tdesc->high = ival;
/*L4674*/  tdesc->high = ival;  /*it should be tdesc->low = ival; ????*/
            }
            continue;

right?