web2py function not triggered on user request - function

Question

Using web2py (Version 2.8.2-stable+timestamp.2013.11.28.13.54.07), on 64-bit Windows, I have the following problem
There is an exe program that is started on user request (first an txt file is created then p is triggered).
p = subprocess.Popen(['woshi_engine.exe', scriptId], shell=True, stdout = subprocess.PIPE, cwd=path_1)
while the exe file is running it is creating a txt file.
The program is stopped on user request by deleting the file the program needs as input.
when exe is started i have other requests user can trigger. it is common that request comes to server (I used microsoft network monitor to check that), but the function is not triggered.
I tried using scheduler but no success. Same problem
I am really stuck here with this problem
Thank you for your help

Answer 1

With a help of web2py google group the solution is.
I used scheduler. Created a scheduler.py file with the following code
def runWoshiEngine(scriptId, path):
import os, sys
import time
import subprocess
p = subprocess.Popen(['woshi_engine.exe', scriptId], shell=True, stdout = subprocess.PIPE, cwd=path)
return dict(status = 1)
from gluon.scheduler import Scheduler
scheduler = Scheduler(db)
In my controller function
task = scheduler.queue_task(runWoshiEngine, [scriptId, path])
you also have to import scheduler (from gluon.scheduler import Scheduler)
then I run the scheduler from command prompt with the following (so if I understood correctly you have two instances of web2py running, one for webserver, one for scheduler)
web2py.py -K woshiweb -D 0 (-D 0 is for verbose logging so it can be removed)