Armadilloフォーラム

# server
class Server(threading.Thread):
    def __init__(self, socket_path):
        self.socket_path = socket_path
 
    def start(self):
        s = self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
        s.bind(self.socket_path)
        s.listen(1)
        try:
            while True:
                connection, address = s.accept()
                sys.stdout.write("connected\n")
                self.accepted(connection, address)
                sys.stdout.write("disconnect\n")
        finally:
            os.remove(self.socket_path)
 
    def accepted(self, connection, address):
        """echo the received data
        """
        data = connection.recv(1024)
        sys.stdout.write("receive from client: {}\n".format(data.decode()))
        connection.send(data)
        sys.stdout.write("send to client: {}\n".format(data.decode()))
 
 
# main loop
if __name__ == '__main__':
    lock = Lock()
 
    t1 = Thread(target=spi.polling, args=(lock,))
    t2 = Thread(target=rs485.polling, args=(lock,))
    t3 = Server('/tmp/myapp.sock')
 
    t1.start()
    t2.start()
    t3.start()

<?php
    function send_client_to_server($text){
        print("send_client_to_server =".$text."\n");
 
        #$fp = stream_socket_client("unix:///path/to/python.sock", $errno, $errstr, 30);
        $fp = stream_socket_client("unix:///tmp/myapp.sock", $errno, $errstr, 30);
        if (!$fp) {
            echo "$errstr ($errno)<br />\n";
        } else {
            fwrite($fp, $text);
            while (!feof($fp)) {
                echo fgets($fp, 1024);
            }
            fclose($fp);
        }
    }
?>

connected
receive from client: textBox
send to client: textBox
disconnect

chmod 666 /sys/class/leds/red/brightness
chmod 666 /sys/class/leds/green/brightness
 
touch /tmp/myapp.sock
chmod 777 /tmp/myapp.sock
 
lighttpd -f /etc/lighttpd/lighttpd.conf
python3 /vol_app/src/main.py

Traceback (most recent call last):
  File "/vol_app/src/main.py", line 115, in <module>
    t3.start()
  File "/vol_app/src/main.py", line 84, in start
    s.bind(self.socket_path)
OSError: [Errno 98] Address already in use