Take a look on that: https://issues.asterisk.org/jira/browse/ASTERISK-20532
Regards, Marcelo H. Terres <mhter...@gmail.com> IM: mhter...@jabber.mundoopensource.com.br https://www.mundoopensource.com.br https://twitter.com/mhterres https://linkedin.com/in/marceloterres On 30 June 2017 at 22:23, Jonathan H <lardconce...@gmail.com> wrote: > OK, I give up and come grovelling, "Fork" was suggested at 18:23, it's > now 22:20 and I have been through 4 different methods, all block with > a 2 second delay before returning to dialplan. > > Here are just some of the examples I have tried, as as per the > suggestions, I am closing all possible outputs in the forked process. > > https://docs.python.org/3.5/library/multiprocessing.html > https://docs.python.org/3.5/library/multiprocessing.html?highlight=multiprocessing#multiprocessing.Process.join > https://stackoverflow.com/questions/19747371/python-exit-commands-why-so-many-and-when-should-each-be-used > https://stackoverflow.com/questions/27624850/launch-a-completely-independent-process > https://stackoverflow.com/questions/13612434/why-are-the-methods-sys-exit-exit-raise-systemexit-not-working > https://stackoverflow.com/questions/43280947/os-fork-share-local-variable-with-parent > https://stackoverflow.com/questions/24052217/may-someone-explain-the-following-os-fork-example-to-me > http://www.python-course.eu/forking.php > https://pymotw.com/3/subprocess/ > http://code.activestate.com/recipes/186101-really-closing-stdin-stdout-stderr/ > > This is the most likely looking code based on the examples. I would > really, really appreciate a couple of pointers as to where I might be > going wrong: > > #! /usr/bin/env python3 > # -*- coding: utf-8 -*- > > import multiprocessing as mp > import time > import sys > import os > > #from asterisk.agi import AGI > #agi = AGI() > > def f(name): > sys.stdin.close() > sys.stdout.close() > sys.stderr.close() > os.close(0) # close C's stdin stream > os.close(1) # close C's stdout stream > os.close(2) # close C's stderr stream > time.sleep(2) > f = open('/var/lib/asterisk/agi-bin/tns/testing/testout.txt', 'w') > f.write(name) > f.close() > > > if __name__ == '__main__': > print('before process') > mp.set_start_method('fork') > q = mp.Queue() > p = mp.Process(target=f, args=('asterisk',)) > p.start() > sys.exit() > > On 30 June 2017 at 19:59, J Montoya or A J Stiles > <asterisk_l...@earthshod.co.uk> wrote: >> On Friday 30 Jun 2017, Jonathan H wrote: >>> What's the simplest, easiest quickest least-code way of firing off an AGI >>> with some variable, and then returning to the dialplan? >> >> You have to use the "fork" command. This starts a copy of the process with >> all the same internal state including variables and filehandles. The command >> returns a non-zero value (which is the PID of the child process; you may >> need >> this, if you plan to outlive your children and have to clear their entries >> from the process table) to the parent process, and zero to the child >> process. >> So in the parent, you exit and return to the dialplan; and in the child, you >> close STDIN, STDOUT and STDERR (so no process is waiting for you to produce >> output), then just take your time doing what you have to. The parent is >> already long dead by this time, so exiting goes nowhere. >> >>> I've seen people talking about fastAGI, stasis, python ASYNC... all seems >>> rather complicated. I feel I must be missing something embarrassingly >>> obvious - isn't there just the equivalent of the unix shell's "&"?! >> >> Yes, fork! That is what the "&" operator is using "under the bonnet". >> >> -- >> JKLM >> >> Note: Originating address only accepts e-mail from list! If replying off- >> list, change address to asterisk1list at earthshod dot co dot uk . >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> >> Check out the new Asterisk community forum at: >> https://community.asterisk.org/ >> >> New to Asterisk? Start here: >> https://wiki.asterisk.org/wiki/display/AST/Getting+Started >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > Check out the new Asterisk community forum at: https://community.asterisk.org/ > > New to Asterisk? Start here: > https://wiki.asterisk.org/wiki/display/AST/Getting+Started > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
