killing own process in windows
in [Python]
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From: News123 on 7 Mar 2010 16:08 Hi, How can I kill my own process? Some multithreaded programs, that I have are unable to stop when ctrl-C is pressed. Some can't be stopped with sys.exit() So I'd just like to terminate my own program. Examples of non killable (not killable with CTRL-C) programs: - A program, that started an XMLRPC server with serve_forever - a program, that started a multiprocessing.Manager with serve_forever thanks in advance for some ideas. N
From: Martin P. Hellwig on 7 Mar 2010 16:28 On 03/07/10 21:08, News123 wrote: > Hi, > > > How can I kill my own process? > > Some multithreaded programs, that I have are unable to stop when ctrl-C > is pressed. > Some can't be stopped with sys.exit() > > So I'd just like to terminate my own program. > > > Examples of non killable (not killable with CTRL-C) programs: > - A program, that started an XMLRPC server with serve_forever > - a program, that started a multiprocessing.Manager with serve_forever > > > thanks in advance for some ideas. > > > N If it is just the xml rpc server you want to kill, there might be better ways. For example look at: http://code.google.com/p/dcuktec/source/browse/source/wrapped_xmlrpc_server/rpc.py with perhaps special interest at the comment on lines 172-174. -- mph
From: News123 on 7 Mar 2010 16:54 Hi Martin. Hellwig wrote: > On 03/07/10 21:08, News123 wrote: >> Hi, >> >> >> How can I kill my own process? >> >> Some multithreaded programs, that I have are unable to stop when ctrl-C >> is pressed. >> Some can't be stopped with sys.exit() >> >> So I'd just like to terminate my own program. >> >> >> Examples of non killable (not killable with CTRL-C) programs: >> - A program, that started an XMLRPC server with serve_forever >> - a program, that started a multiprocessing.Manager with serve_forever >> >> > If it is just the xml rpc server you want to kill, there might be better > ways. For example look at: > http://code.google.com/p/dcuktec/source/browse/source/wrapped_xmlrpc_server/rpc.py > > with perhaps special interest at the comment on lines 172-174. I Thanks. this looks like a good solution for an XMLRPC server. However when playing with different server modules I fall over and over again over code, that can't be shutdown nicely. Currently I'm still struggling with multiprocessing.managers,BaseManager bye N
From: Martin P. Hellwig on 7 Mar 2010 17:27 On 03/07/10 21:54, News123 wrote: > Hi Martin. > Hellwig wrote: >> On 03/07/10 21:08, News123 wrote: >>> Hi, >>> >>> >>> How can I kill my own process? >>> >>> Some multithreaded programs, that I have are unable to stop when ctrl-C >>> is pressed. >>> Some can't be stopped with sys.exit() >>> >>> So I'd just like to terminate my own program. >>> >>> >>> Examples of non killable (not killable with CTRL-C) programs: >>> - A program, that started an XMLRPC server with serve_forever >>> - a program, that started a multiprocessing.Manager with serve_forever >>> >>> >> If it is just the xml rpc server you want to kill, there might be better >> ways. For example look at: >> http://code.google.com/p/dcuktec/source/browse/source/wrapped_xmlrpc_server/rpc.py >> >> with perhaps special interest at the comment on lines 172-174. > I > > > > Thanks. this looks like a good solution for an XMLRPC server. > However when playing with different server modules I fall over and over > again over code, that can't be shutdown nicely. > > Currently I'm still struggling with multiprocessing.managers,BaseManager > > bye > > N I haven't used the multiprocessing module yet, but generally speaking I believe that everything in python that is server-like inherits from SocketServer BaseServer. Probably for you to have all servers behave in a way you expect, is to override functionality there, for example in: http://docs.python.org/library/socketserver.html?highlight=baseserver#SocketServer.BaseServer the function: handle_request Though from looking at the source the function serve_forever is just an while loop over handle request (blocking or no-blocking), so might be a better candidate to replace. But you still might find that some tcp connections remain open, so unless you want to go down to the socket level and explicit close the socket, there is not much you can do about that. For the client side, socket timeout is you enemy, I found something rather long as default (300 seconds in the xml-rpc client) but yours might be different (it is probably a Python defined standard default, but I haven't checked that). Sounds to me like you will be busy reading up on it now :-) Oh and just a word to prevent over-engineering, if both the server and client is written by you, a lot of problems you anticipate will probably never occur because that would require a rogue server or client. Unless of course you like making rogue server/clients :-) -- mph
From: Christian Heimes on 7 Mar 2010 17:36
News123 wrote: > Hi, > > > How can I kill my own process? > > Some multithreaded programs, that I have are unable to stop when ctrl-C > is pressed. > Some can't be stopped with sys.exit() You have to terminate the XMP-RPC server or the manager first. Check the docs! You can terminate a Python process with os._exit() but I recommend that you find another way. os._exit() is a hard termination. It kills the process without running any cleanup code like atexit handlers and Python's internal cleanups. Open files aren't flushed to disk etc. Christian |