Path: csiph.com!goblin3!goblin1!goblin.stu.neva.ru!uio.no!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!nzpost1.xs4all.net!not-for-mail
Return-Path: <random832@fastmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.009
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'exit': 0.07; 'module)': 0.09; 'received:internal': 0.09; 'subject:skip:m 10': 0.09; 'message-id:@webmail.messagingengine.com': 0.16; 'received:10.202': 0.16; 'received:10.202.2': 0.16; 'received:66.111': 0.16; 'received:66.111.4': 0.16; 'received:messagingengine.com': 0.16; 'simulate': 0.16; 'wrote:': 0.16; 'frameworks': 0.18; 'windows': 0.20; 'sep': 0.22; '(you': 0.23; "python's": 0.23; 'header:In-Reply-To:1': 0.24; 'chris': 0.26; 'fri,': 0.27; 'mind,': 0.29; '(including': 0.30; 'up.': 0.32; 'related': 0.32; 'though,': 0.32; 'sometimes': 0.35; 'but': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:10': 0.37; 'received:66': 0.38; 'does': 0.39; 'subject:-': 0.39; 'to:addr:python.org': 0.40; 'protection': 0.60; 'chance': 0.60; 'header:Message-Id:1': 0.61; 'lacks': 0.84; 'subject:down': 0.84
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=fastmail.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=PzzaGQcDDuJHTSsHpK1UgO3VTeI=; b=69cshd bOkz/rquk/CMF5b3pL9OtLgP89JFSSp7V4V2KyuNFnTT2YN3jMYEYvFKytODPuYv Mt4mHvrmSPzt+p+Qgy65VwOFwBjgKCeHRKQHS2sMICY8XFVWg05j7qj7c/th3Dez RF13NAoA6sr9U7tDiBcL+YI+Xd1vhl2KdlVM8=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=PzzaGQcDDuJHTSs HpK1UgO3VTeI=; b=JLxlB3QpwbeneP41Npo+3N9nlAkQGvAY2icDoFRr2xVNsig kgV1rOfb8n34SiHZD+EaVhd5RGE8xaOFtbTkyp02/V6J64CJwADcOVqTrH1UDgfP QJN0j8hy7A8uR8ZMrKRbFgdfQtM4OntGYwLiqN/AWGqZRmcbP7nU9uWK2ug4=
X-Sasl-Enc: 885pSU0vp/PO4UQH/6X5gUP00mUmB3uQbEGcwZguutqp 1442612909
From: Random832 <random832@fastmail.com>
To: python-list@python.org
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain
X-Mailer: MessagingEngine.com Webmail Interface - ajax-e92f8263
In-Reply-To: <CAPTjJmqw26YfJs12q6C_a_JYhQks6RmLhL=0A7OCy5jcGpaBug@mail.gmail.com>
References: <mthgrk$uh1$1@dont-email.me> <CAPTjJmqw26YfJs12q6C_a_JYhQks6RmLhL=0A7OCy5jcGpaBug@mail.gmail.com>
Subject: Re: Shutting down a cross-platform multithreaded app
Date: Fri, 18 Sep 2015 17:48:29 -0400
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.20+
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.10.1442612913.21674.python-list@python.org>
Lines: 13
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1442612913 news.xs4all.nl 23843 [2001:888:2000:d::a6]:48749
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:96840

On Fri, Sep 18, 2015, at 17:40, Chris Angelico wrote:
> Bear in mind, though, that Windows has no protection against other
> processes shutting you down.

Neither does Unix. Any process that can send you a signal can send you
SIGKILL.

Of course, what Windows lacks is a generalized way for other processes
to send "less destructive" signals that do give you a chance to clean
up. (You can sometimes send a ctrl-break event, but that's it.) And most
frameworks for "emulating" them (including python's os module) simulate
sending other signals by calling TerminateProcess with an exit status
related to the signal.