class Worker(object):
def __init__(self, parent, store):
self.parent = parent
self.store = store
self.buffer = Buffer()
self.handlers = HandlerMap()
self.stoped = False
def start(self):
self.register_handlers()
self.register_signals()
while not self.stoped:
self.interact()
def register_handlers(self):
self.handlers.add_handler('bye', self.bye)
self.handlers.add_handler('task', self.task)
def command(self, cmd):
self.buffer.append(self.parent, cmd)
while True:
fd, cmd_type, cmd_param = self.buffer.next_cmd()
if not cmd_type:
break
self.handlers.process_cmd(fd, cmd_type, cmd_param)
def bye(self,fd,param):
self.prepare_exit()
def task(self, fd, param):
task_id = int(param)
task_info = self.store.get_task(task_id)
if task_info:
task_info.run()
self.send_parent('task_finish:%s' % task_id)
def send_parent(self, cmd):
self.parent.send(cmd + ';')
def interact(self):
r,w,e=[],[],[]
try:
r,w,e=select.select([self.parent], [self.parent], [], 2)
except select.error, ex:
if ex[0] == errno.EINTR:
self.prepare_exit()
return
if ex[0] == errno.EAGAIN:
pass
else:
raise
if not r:
return
father = r[0]
cmd = father.recv(1024)
self.command(cmd)
def open_(event):
path = askopenfilename()
# If the user clicked 'Cancel', return without changing anything
if not path:
return
with open(path, 'r+t') as infile:
editor.add(Buffer(file=infile, text=infile.read()))
editor.select('end')
def __init__(self, parent, store):
self.parent = parent
self.store = store
self.buffer = Buffer()
self.handlers = HandlerMap()
self.stoped = False
def new(event):
editor.add(Buffer())
editor.select('end')