Program takes a long time to respond

[davidpuetter]

Hi, I'm currently using this program on a RPI 3B+ using : sudo ./ws2812svr -i "setup 1,60,3;init;" -tcp 9999 and I'm running the php script here: https://github.com/tom-2015/rpi-ws2812-server/blob/master/php/index.php on a remote machine on the local network (I changed the IP in fsockopen)

So far, only the rainbow/brightness commands work - however they take a long time to respond (a minute or two) and react. The rotating rainbow never responded even after 10 minutes. The program outputs 'Client Connected' as soon as I press an option on the website, and then after the colour changed after a few minutes, it says 'Waiting for client to connect'. I checked CPU usage with top and it remains at around 25% while executing, and 1.3% when done.

I've tried the following #28 and that did not succeed.

[tom-2015]

Can you post the PHP code you are using?

[davidpuetter]

<?php
$cmd = @$_REQUEST['cmd'];
$brightness = intval(@$_REQUEST['brightness']);
$color = @$_REQUEST['color'];
if ($color=='') $color='FF0000';
if ($brightness==0) $brightness=32;
$data  = "";
if ($cmd!=''){
    switch ($cmd){
        case 'fill':
            $data .= "brightness 1,$brightness;fill 1,$color;render;";
            break;
        case 'rainbow':
            $data .= "brightness 1,$brightness;rainbow;render;";
            break;
        case 'rotating_rainbow':
            $data .= "brightness 1,$brightness;
                      thread_start;
                     do;
                        rotate 1,1,2;
                        render;
                        delay 200;
                     loop;
                    thread_stop;";
            break;
    }
    send_to_leds($data);
}
function send_to_leds ($data){
    $sock = fsockopen("192.168.XXX.XXX", 9999);
    fwrite($sock, $data);
    fclose($sock);
}
?>

[tom-2015]

Can't see problem, what happens if you run the same commands from a text file or direct enter on CLI? Try connecting to the server with putty (raw mode) and paste the code to see if it's PHP related or not.

Enable debug mode on the ./ws2812svr command (add -d). See what the program prints when PHP is connecting.