def __init__(self, symb, name, cmd, start_signal, size, tk, log):
print cmd
proc=subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=0)
self.proc = proc
self.name = name
self.symb = symb
self.type = "AI"
self.logger = log
self.state = 0
self.size = size
tkinter.createfilehandler(proc.stderr, tkinter.READABLE, self.on_err_ready)
self.kick_start(start_signal)
self.tk = tk
self.clean = False
class Controller:
def __init__(self, path=_filename):
# register a destruction handler with the Grail Application object
app = get_grailapp()
self._app = app
app.register_on_exit(self._close)
# calculate the socket's filename
self._path = path
self._fileno = None
self._socket = None
self._enabled = None
# Don't create the socket now, because we want to allow
# clients of this class to register callbacks for commands
# first.
self._cbdict = {}
self._cmdre = re.compile('([^ \\t]+)(.*)')
def start(self):
"""Begin listening for remote control commands."""
# initialize the socket
if self._fileno is None:
# for security, create the file structure
head, self._filename = os.path.split(self._path)
dirhier = []
while head and not os.path.isdir(head):
head, t = os.path.split(head)
dirhier.insert(0, t)
for dir in dirhier:
head = os.path.join(head, dir)
os.mkdir(head, 0700)
self._filename = self._path
# TBD: What do we do with multiple Grail processes? Which
# one do we remote control?
if os.path.exists(self._filename):
# first make sure that the socket is connected to a
# live Grail process. E.g. if Python core dumped, the
# exit handler won't run so you'd be dead in the
# water.
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
try:
s.connect(self._filename)
s.send('PING NOACK')
s.close()
raise ClashError
except socket.error, (errno, msg):
os.unlink(self._filename)
s.close()
# create the FIFO object
s = self._socket = socket.socket(socket.AF_UNIX,
socket.SOCK_STREAM)
s.bind(self._filename)
s.listen(1)
# register with Tk
self._fileno = s.fileno()
if self._fileno < 0:
self._fileno = None
raise InitError
if not self._enabled:
self._enabled = 1
tkinter.createfilehandler(self._fileno, tkinter.READABLE,
self._dispatch)
self.register('PING', self.ping_cmd)
def get_move(self, timeout, todo):
self.todo = todo
self.timeout_id = self.tk.after(timeout, self.on_timeout)
tkinter.createfilehandler(self.proc.stdout, tkinter.READABLE, self.on_read_ready)
