Hi.
My target is emulate real threading .
Code with cooperative threads looks like this:
from greenlet.tasklet import *
def demoTask(task, name):
for x in xrange(20):
print "Hello i'm %s" % name
yield wait(10) # seconds / 10
task.result = "Hello from %s" % name
def mainTask(task):
t1 = Tasklet(demoTask, "Task 1")
t1.run()
#you can also use spawn
t2 = spawn(demoTask, "Task 2")
yield join([t1,t2]) # wait forever t1 and t2 end
#yield join([t1,t2], 300) # is the same with 30 seconds timeout (Timeout
exception is Raised inside generator)
#yield join([t1,t2]) + timeout(300) # the same above, you can concatenate
events.
print "t1 and t2 finished"
yield wait(10) # wait function don't raise exception Timeout.
print "t1 result: %s" % t1.result
print "t1 result: %s" % t2.result
if __name__ == '__main__':
mt = spawn(mainTask)
Exceptions if not catch, are propagated to caller generator.
The tasklet library is ready, i'll document it and then publish.
Bye.
El lunes, 17 de septiembre de 2012 16:21:28 UTC+2, Vsevolod Fedorov
escribió:
>
> On 09/13/12 20:58, Pepe Aracil wrote:
>
> I'm working on a new threading library for pyjs based on generators. This
> effort is an attempt to escape from asynchronous Hell.
>
> The main goal is simulate threading (cooperative threading) with
> funtions like spawn, join, kill, wait, ....
>
> Are there any other project like this to join efforts?
>
>
> May be the twisted project (http://twistedmatrix.com/trac/) with its
> @inlineCallbacks decorator is worth looking at. It uses generators to wrap
> cooperative threading.
> But I must note that working with it was very unpleasant experience...
>
> Seva
>
>
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