Question

I am trying to log a process in C and I need an simpler solution.

I have a status byte of which each bit indicates if certain equipment is on. Each equipment has a fixed power consumption rate and I want to log the power usage based on its ON/OFF status.

So, I have a struct called equip_totals and the usage rates as members, equip1…

struct {
        unsigned int equip1;
        unsigned int equip2;
        ...
        } equip_totals; 

and to update, I use a rather long function which I would like to simplify

void update_equip_status(char *equip_status)
{
if (&equip_staus = 0x01)
equip_totals.equip1 = consumption_rate*time;
if...
}

If you have any ideas, I would appreciate it.

Answer 1

Replace equip_totals with array and use the following loop

void update_equip_status(char *equip_status) {
    for ( int i = 0; equip_status; i++ ) {
        if ( equip_status & 1 )
            equip_totals[i] = consumption_rate*time;
        equip_status >>= 1;
    }
}