Samir,
You've got something going on that I'm not too familiar with (running Medusa
as a service in Windows)...
Two things come to mind, though, as I look at your traceback, and the code
in asyncore...
* Does a 'Service' in win32 have a stdout? I don't know, but I'm pretty
sure the answer is "No," based on the error you're getting, a hunch, and the
link I've attached below.
* The 'logging' being done by asyncore is using the print statement. As
you probably know/recall, Quixote replaces sys.stdout (the 'file' all print
statements write to) with your debug file. Did you define a debug file? If
not, that print will still go to the real STDOUT, which, since this is a
Service, probably doesn't exist. If you haven't done so already, try
defining a debug file in your quixote conf file to catch the STDOUT stuff.
In trying to find out about the Service / STDOUT issue (to confirm my hunch)
I found this, which may help in a couple of ways:
http://twistedmatrix.com/pipermail/twisted-python/2001-December/000644.html
Quoting the relevant part:
> Andrew Bennetts said:> The trickiest bit is that you need to set the log
> file to something other than stdout, otherwise it dies due to a Bad File
> Descriptor error doing logfile.flush(). Other than that, it is
> basically boilerplate code (if you're familiar with Win32 services
> written in Python).
But you'll probably want to read the whole post, as it relates to getting
Twisted to run as a service.Good luck!Jason
-----Original Message-----
From: quixote-users-bounces+jsibre=chironsys.com@mems-exchange.org
[mailto:quixote-users-bounces+jsibre=chironsys.com@mems-exchange.org]On
Behalf Of Samir Patel
Sent: Sunday, March 28, 2004 9:37 PM
To: quixote-users@mems-exchange.org
Subject: [Quixote-users] Need help in running quixote.demo as medusas'
ortwisteds' win32 service
I have created a quixote program which I like to run as service on windows
machine using either medusa or twisted matrix as web server.
I am having trouble with both of them. Am I missing something or I have to
run it with IIS or Apache?
When I run quixote.demo (quixote 0.7a3) with medusa server as a win32
service as follows:
import win32serviceutil
import win32service
import win32event
class motorService(win32serviceutil.ServiceFramework):
_svc_name_ = "motorService"
_svc_display_name_ = "The Motor Service"
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
#self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
def SvcStop(self):
pass
# self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
# win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
import asyncore
from quixote.server.medusa_http import http_server, QuixoteHandler
from quixote import enable_ptl
from quixote.publish import Publisher
enable_ptl()
server = http_server.http_server('', 80)
publisher = Publisher('quixote.demo')
publisher.setup_logs()
dh = QuixoteHandler(publisher, 'Quixote/demo', server)
server.install_handler(dh)
asyncore.loop()
#win32event.WaitForSingleObject(self.hWaitStop,
win32event.INFINITE)
if __name__=='__main__':
win32serviceutil.HandleCommandLine(motorService)
**********************************************
It runs for some time and then stop running with following error in
eventlog:
Event Type: Error
Event Source: Python Service
Event Category: None
Event ID: 3
Date: 3/28/2004
Time: 10:20:51 PM
User: N/A
Computer: RCPORTABLE
Description:
The instance's SvcRun() method failed
File "C:\Python23\lib\site-packages\win32\lib\win32serviceutil.py", line
670, in SvcRun
self.SvcDoRun()
File "C:\Python23\service\motorServiceMedusa.py", line 29, in SvcDoRun
asyncore.loop()
File "C:\Python23\lib\asyncore.py", line 193, in loop
poll_fun(timeout, map)
File "C:\Python23\lib\asyncore.py", line 125, in poll
write(obj)
File "C:\Python23\lib\asyncore.py", line 81, in write
obj.handle_error()
File "c:\python23\Lib\site-packages\medusa\http_server.py", line 429, in
handle_error
asynchat.async_chat.handle_error (self)
File "C:\Python23\lib\asyncore.py", line 418, in handle_error
'error'
File "C:\Python23\lib\asyncore.py", line 376, in log_info
print '%s: %s' % (type, message)
exceptions.IOError: (9, 'Bad file descriptor')
****************************************************************************
**********************
When I run with twisted as follows:
import win32serviceutil
import win32service
import win32event
class motorService(win32serviceutil.ServiceFramework):
_svc_name_ = "motorService"
_svc_display_name_ = "The Motor Service"
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
#self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
def SvcStop(self):
pass
# self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
# win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
from twisted.internet.app import Application
from quixote.server.twisted_http import QuixoteFactory
import quixote
quixote.enable_ptl()
from quixote.publish import Publisher
from twisted.python.log import startLogging
startLogging(open('c:/twistedexample.log','a'))
import quixote.demo
http_port = 80
namespace = quixote.demo
app = Application('Quixote')
publisher = Publisher(namespace)
qf = QuixoteFactory(publisher)
app.listenTCP(http_port, qf)
app.run(save=0)
I got following error in twisted log file. I can not run demo at all using
twisted.
2004/03/28 22:19 Eastern Standard Time [-] Log opened.
2004/03/28 22:19 Eastern Standard Time [-]
C:\Python23\service\motorService.py:30: exceptions.DeprecationWarning:
twisted.internet.app is deprecated, use twisted.application or the reactor
instead.
2004/03/28 22:19 Eastern Standard Time [*Quixote*]
quixote.server.twisted_http.QuixoteFactory starting on 80
2004/03/28 22:19 Eastern Standard Time [*Quixote*] Starting factory
2004/03/28 22:19 Eastern Standard Time [*Quixote*] Traceback (most recent
call last):
File "C:\Python23\lib\site-packages\win32\lib\win32serviceutil.py",
line 670, in SvcRun
self.SvcDoRun()
File "C:\Python23\service\motorService.py", line 34, in SvcDoRun
app.run(save=0)
File "C:\Python23\Lib\site-packages\twisted\internet\app.py", line 873,
in run
log.callWithLogger(self, reactor.run,
installSignalHandlers=installSignalHandlers)
--- ---
File "C:\Python23\Lib\site-packages\twisted\python\log.py", line 65, in
callWithLogger
callWithContext({"system": lp}, func, *args, **kw)
File "C:\Python23\Lib\site-packages\twisted\python\log.py", line 52, in
callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "C:\Python23\Lib\site-packages\twisted\python\context.py", line
32, in callWithContext
return func(*args,**kw)
File "C:\Python23\Lib\site-packages\twisted\internet\default.py", line
124, in run
self.startRunning(installSignalHandlers=installSignalHandlers)
File "C:\Python23\Lib\site-packages\twisted\internet\default.py", line
120, in startRunning
self._handleSignals()
File "C:\Python23\Lib\site-packages\twisted\internet\default.py", line
92, in _handleSignals
signal.signal(signal.SIGINT, self.sigInt)
exceptions.ValueError: signal only works in main thread