Regarding
> The process ''starting'' is different from `ProcessProtocol` methods being
> called. `ProcessProtocol.processEnded` is ''not'' called until the
> reactor is running.
On my own VMs, the processEnded gets called
[root@master1 play]# cat fun.py
from twisted.internet import reactor
from twisted.internet import reactor, protocol
class OneRun(protocol.ProcessProtocol):
def processEnded(self, reason):
print "Process ended\n"
reactor.spawnProcess(OneRun(), executable="echo", args=["echo",
"hello"], childFDs={0:0, 1:1, 2:2})
[root@master1 play]# python fun.py
hello
Process ended
[root@master1 play]#
But once again, on a different VM, I only see "hello" and processEnded
isn't called.
Both VMs run Python 2.7.1 and Twisted 11.0.0
What is going on?
David Kao
On Mon, Sep 26, 2011 at 8:03 PM, Twisted <t...@twistedmatrix.com> wrote:
> #5272: In the core doc, do not call reactor.stop directly in processEnded
> ------------------------+---------------------------------------------------
> Reporter: dkdog | Owner:
> Type: defect | Status: closed
> Priority: normal | Milestone:
> Component: core | Resolution: worksforme
> Keywords: | Branch:
> Branch_author: | Launchpad_bug:
> ------------------------+---------------------------------------------------
> Changes (by exarkun):
>
> * status: reopened => closed
> * resolution: => worksforme
>
>
> Comment:
>
> > I just found out that reactor.spawnProcess could spawn the subprocess
> right away **before** reactor.run is executed.
>
> This doesn't seem related to this ticket.
>
> > I get the impression that most stuff don't get run until the reactor
> event loop is up and running with reactor.run()
>
> That's true. Most stuff.
>
> > In this case, who's answering all the ProcessProtocol's methods like
> processEnded then, without an event loop?
>
> The process ''starting'' is different from `ProcessProtocol` methods being
> called. `ProcessProtocol.processEnded` is ''not'' called until the
> reactor is running.
>
> Further discussion should be moved to the mailing list. Thanks.
>
> --
> Ticket URL: <http://twistedmatrix.com/trac/ticket/5272#comment:8>
> Twisted <http://twistedmatrix.com/trac/>
> Engine of your Internet
>
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