Implementing Timers in Python - Revision history

PeterHarding at 07:13, 2 May 2008

2008-05-02T07:13:32Z

@@ Line 54: / Line 54: @@
 </pre>
 [[Category:Python]]
 [[Category:Testing]]
 [[Category:Development]]

PeterHarding at 08:18, 30 April 2008

2008-04-30T08:18:32Z

← Older revision		Revision as of 18:18, 30 April 2008
Line 1:		Line 1:
			=Using UNIX Like Functionality=

			This script makes use of UNIX derived signal methods.

	<pre>		<pre>
	import signal, time		import signal, time
Line 50:		Line 54:
	</pre>		</pre>

	[[~~Categry~~:Python]]
	[[~~Categry~~:Testing]]		[[Category:Python]]
	[[~~Categry~~:Development]]		[[Category:Testing]]
			[[Category:Development]]

PeterHarding: New page:

 import signal, time  class TimedOutExc(Exception):     def __init__(self, value = "Timed Out"):         self.value = value     def __str__(self):         return repr(self.value)  def...

2008-04-30T08:17:18Z

New page: <pre> import signal, time class TimedOutExc(Exception): def __init__(self, value = "Timed Out"): self.value = value def __str__(self): return repr(self.value) def...

New page

<pre>
import signal, time

class TimedOutExc(Exception):
def __init__(self, value = "Timed Out"):
self.value = value
def __str__(self):
return repr(self.value)

def TimedOutFn(f, timeout, *args, **kwargs):
def handler(signum, frame):
raise TimedOutExc()

old = signal.signal(signal.SIGALRM, handler)
signal.alarm(timeout)
try:
result = f(*args, **kwargs)
finally:
signal.signal(signal.SIGALRM, old)
signal.alarm(0)
return result

def timed_out(timeout):
def decorate(f):
def handler(signum, frame):
raise TimedOutExc()

def new_f(*args, **kwargs):
old = signal.signal(signal.SIGALRM, handler)
signal.alarm(timeout)
try:
result = f(*args, **kwargs)
finally:
signal.signal(signal.SIGALRM, old)
signal.alarm(0)
return result

new_f.func_name = f.func_name
return new_f

return decorate

def fn_1(secs):
time.sleep(secs)
return "Finished"

@timed_out(4)
</pre>

[[Categry:Python]]
[[Categry:Testing]]
[[Categry:Development]]