name some things a bit clearer: open -> unlock, close -> lock

[saartuer.git] / tuerd

diff --git a/tuerd b/tuerd
index 1d49f652b5e7b892a7ec0789c96a308f39d9cf6a..c3a5a43763b89b2a7bb5005169d116d6333864fb 100755 (executable)
--- a/tuerd
+++ b/tuerd
@@ -1,93 +1,30 @@
 #!/usr/bin/python3
 #!/usr/bin/python3

-import time, socket, os, stat, atexit
-from datetime import datetime

 import RPi.GPIO as GPIO
 import RPi.GPIO as GPIO

-GPIO.setmode(GPIO.BOARD)
-
-# ******** definitions *********
-# logging function
-# TODO: loglevel, log like a real daemon
-def log (what):
-       print (datetime.now(),what)
-
-# send to client for information but don't care if it arrives
-def waynesend (conn, what):
-       try:
-               conn.send(what)
-       except:
-               log("Couldn't send %s" % str(what))
-
-# for command not found: do nothing with the pins and send a "0" to the client
-def doNothing (conn):
-       log ("doing nothing")
-       waynesend(conn,b"0")
-       pass
+import statemachine, actor, pins, tysock, waker

 
 

-# commands: on a pin do a series of timed on/off switches
-class Pinoutput:
-       # name is for logging and also used for mapping command names to instances of this class
-       # actionsanddelays is a list of pairs: (bool to set on pin, delay in seconds to wait afterwards)
-       def __init__ (self, name, pinnumber, actionsanddelays):
-               self.name = name
-               self.pin = pinnumber
-               self.todo = actionsanddelays
-               GPIO.setup(pinnumber, GPIO.OUT)
-               log ("Pin %d set to be an output pin for %s." % (pinnumber,name))
-       # actually send the signal to the pins
-       def __call__ (self, conn):
-               for (value,delay) in self.todo:
-                       GPIO.output(self.pin, value)
-                       log ("%s: Pin %d set to %s." % (self.name,self.pin,str(value)))
-                       time.sleep(delay)
-               # notify success
-               waynesend(conn,b"1")
-
-# ******** configuration *********
-
-tuergroupid = 1005
-socketname = "/run/tuer.sock"
-pinlist = [Pinoutput("open", 12, [(True, 0.3), (False, 5.0)]),
-       Pinoutput("close", 16, [(True, 0.3), (False, 5.0)]),
-       Pinoutput("buzz", 22, [(True, 2.0), (False, 0.1)])]
-
-
-# ******** main *********
-# at the end do a cleanup
-atexit.register(GPIO.cleanup);
+# initialize GPIO stuff
+GPIO.setmode(GPIO.BOARD)

 
 

-# convert list of pin objects to dictionary for command lookup
-pindict = {}
-for pin in pinlist:
-       pindict[pin.name.encode()] = pin
+# bring 'em all up
+the_actor = actor.Actor()
+the_machine = statemachine.StateMachine(the_actor)
+the_socket = tysock.TySocket(the_machine)
+the_pins = pins.PinsWatcher(the_machine)
+the_waker = waker.Waker(the_machine)

 
 

-# create socket
-sock = socket.socket (socket.AF_UNIX, socket.SOCK_STREAM)
-# delete old socket file and don't bitch around if it's not there
+# we do the socket accept thing in the main thread

 try:
 try:

-       os.unlink (socketname)
-except OSError:
+       the_socket.accept()
+except KeyboardInterrupt:
+       # this is what we waited for!

        pass
        pass

-# bind socket to file name
-sock.bind (socketname)
-# allow only users in the tuergroup to write to the socket
-os.chown (socketname, 0, tuergroupid)
-os.chmod (socketname, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IWGRP)
-# listen to the people, but not too many at once
-sock.listen(1)

 
 

-# main loop
-# FIXME: DoS by opening socket but not sending data, because this loop is single threaded; maybe settimeout helps a bit.
-while True:
-       # accept connections
-       conn, addr = sock.accept()
-       # TODO: use addr to determine the client for logging
-       # get some data from the client (enough to hold any valid command)
-       data = conn.recv (32)
-       # log the command
-       log("received command: %s" % str(data))
-       # lookup the command, if it's not in the dict, use the doNothing function instead
-       # and execute the looked up command or doNothing with the connection, so it can respond to the client
-       pindict.get(data,doNothing)(conn)
-       # close connection cleanly
-       conn.close()
+# bring 'em all down
+the_waker.stop()
+the_pins.stop()
+the_socket.stop()
+the_machine.stop()
+the_actor.stop()

 
 

+# shutdown GPIO stuff
+GPIO.cleanup()