Added an unmodified copy of SCons to third_party.

scons-2.0.1/engine/SCons/exitfuncs.py

+"""SCons.exitfuncs
+
+Register functions which are executed when SCons exits for any reason.
+
+"""
+
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 5134 2010/08/16 23:02:40 bdeegan"
+
+
+
+_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))
+
+import sys
+
+try:
+    x = sys.exitfunc
+
+    # if x isn't our own exit func executive, assume it's another
+    # registered exit function - append it to our list...
+    if x != _run_exitfuncs:
+        register(x)
+
+except AttributeError:
+    pass
+
+# make our exit function get run by python when it exits:    
+sys.exitfunc = _run_exitfuncs
+
+del sys
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: