mapnik/scons/scons-local-2.3.6/SCons/exitfuncs.py

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2015-08-12 14:17:18 +00:00
"""SCons.exitfuncs
Register functions which are executed when SCons exits for any reason.
"""
#
# Copyright (c) 2001 - 2015 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "src/engine/SCons/exitfuncs.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"
import atexit
_exithandlers = []
def _run_exitfuncs():
"""run any registered exit functions
_exithandlers is traversed in reverse order so functions are executed
last in, first out.
"""
while _exithandlers:
func, targs, kargs = _exithandlers.pop()
func(*targs, **kargs)
def register(func, *targs, **kargs):
"""register a function to be executed upon normal program termination
func - function to be called at exit
targs - optional arguments to pass to func
kargs - optional keyword arguments to pass to func
"""
_exithandlers.append((func, targs, kargs))
# make our exit function get run by python when it exits
atexit.register(_run_exitfuncs)
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