mirror of
https://github.com/HelloZeroNet/ZeroNet.git
synced 2023-12-14 04:33:03 +01:00
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
# Based on http://stackoverflow.com/a/2022629
|
|
|
|
|
|
class Event(list):
|
|
|
|
def __call__(self, *args, **kwargs):
|
|
for f in self[:]:
|
|
if "once" in dir(f) and f in self:
|
|
self.remove(f)
|
|
f(*args, **kwargs)
|
|
|
|
def __repr__(self):
|
|
return "Event(%s)" % list.__repr__(self)
|
|
|
|
def once(self, func, name=None):
|
|
func.once = True
|
|
func.name = None
|
|
if name: # Dont function with same name twice
|
|
names = [f.name for f in self if "once" in dir(f)]
|
|
if name not in names:
|
|
func.name = name
|
|
self.append(func)
|
|
else:
|
|
self.append(func)
|
|
return self
|
|
|
|
|
|
def testBenchmark():
|
|
def say(pre, text):
|
|
print "%s Say: %s" % (pre, text)
|
|
|
|
import time
|
|
s = time.time()
|
|
on_changed = Event()
|
|
for i in range(1000):
|
|
on_changed.once(lambda pre: say(pre, "once"), "once")
|
|
print "Created 1000 once in %.3fs" % (time.time() - s)
|
|
on_changed("#1")
|
|
|
|
|
|
def testUsage():
|
|
def say(pre, text):
|
|
print "%s Say: %s" % (pre, text)
|
|
|
|
on_changed = Event()
|
|
on_changed.once(lambda pre: say(pre, "once"))
|
|
on_changed.once(lambda pre: say(pre, "once"))
|
|
on_changed.once(lambda pre: say(pre, "namedonce"), "namedonce")
|
|
on_changed.once(lambda pre: say(pre, "namedonce"), "namedonce")
|
|
on_changed.append(lambda pre: say(pre, "always"))
|
|
on_changed("#1")
|
|
on_changed("#2")
|
|
on_changed("#3")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
testBenchmark()
|