From 6528ebfe4928a90c6e1cc67ca25b289b7ae93ffc Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Tue, 3 Jun 2008 21:48:19 +0200 Subject: * host, digital/asserv/tools, digital/avr/modules: - cleaned up python scripts hierarchy. --- host/utils/__init__.py | 0 host/utils/forked.py | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 host/utils/__init__.py create mode 100644 host/utils/forked.py (limited to 'host/utils') diff --git a/host/utils/__init__.py b/host/utils/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/host/utils/forked.py b/host/utils/forked.py new file mode 100644 index 00000000..9e72d7d3 --- /dev/null +++ b/host/utils/forked.py @@ -0,0 +1,48 @@ +# mex - Messages exchange library. {{{ +# +# Copyright (C) 2008 Nicolas Schodet +# +# APBTeam: +# Web: http://apbteam.org/ +# Email: team AT apbteam DOT org +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# }}} +"""Run a function in a separate process.""" +import os, sys, signal + +class Forked: + """ + Usage: + + >>> f = Forked (function) + (function runs in background, in a separated process) + >>> f.kill () + (send the SIGTERM signal to the process) + """ + + def __init__ (self, function): + """Initialise, fork, and call the given function in the children + process.""" + self.pid = os.fork () + if self.pid == 0: + function () + sys.exit (0) + + def kill (self): + """Kill the forked function.""" + os.kill (self.pid, signal.SIGTERM) + os.waitpid (self.pid, 0) -- cgit v1.2.3