def __call__(self, func, on_success=on_success,
on_failure=on_failure, on_closing=on_closing):
# every decorated function has its own independent thread counter
func.counter = itertools.count(1)
func.on_success = on_success
func.on_failure = on_failure
func.on_closing = on_closing
return decorator(self.call, func)
def restricted(user_class):
def restricted(func, *args, **kw):
"Restrict access to a given class of users"
userclass = get_userclass()
if issubclass(userclass, user_class):
return func(*args, **kw)
else:
raise PermissionError(
'%s does not have the permission to run %s!'
% (userclass.__name__, func.__name__))
return decorator(restricted)
def __call__(self,
func,
on_success=on_success,
on_failure=on_failure,
on_closing=on_closing):
# every decorated function has its own independent thread counter
func.counter = itertools.count(1)
func.on_success = on_success
func.on_failure = on_failure
func.on_closing = on_closing
return decorator(self.call, func)
def blocking(not_avail):
def blocking(f, *args, **kw):
if not hasattr(f, "thread"): # no thread running
def set_result(): f.result = f(*args, **kw)
f.thread = threading.Thread(None, set_result)
f.thread.start()
return not_avail
elif f.thread.isAlive():
return not_avail
else: # the thread is ended, return the stored result
del f.thread
return f.result
return decorator(blocking)
def memoize(f):
f.cache = {}
return decorator(_memoize, f)
def trace(f):
return decorator(_trace, f)
def decorate(cls):
for attr in cls.__dict__: # there's propably a better way to do this
if callable(getattr(cls, attr)):
setattr(cls, attr, decorator(getattr(cls, attr)))
return cls
