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Diffstat (limited to 'lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/python/systemd.py')
-rwxr-xr-x | lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/python/systemd.py | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/python/systemd.py b/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/python/systemd.py deleted file mode 100755 index d20fa04d..00000000 --- a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/python/systemd.py +++ /dev/null @@ -1,87 +0,0 @@ -# -*- test-case-name: twisted.python.test.test_systemd -*- -# Copyright (c) Twisted Matrix Laboratories. -# See LICENSE for details. - -""" -Integration with systemd. - -Currently only the minimum APIs necessary for using systemd's socket activation -feature are supported. -""" - -__all__ = ['ListenFDs'] - -from os import getpid - - -class ListenFDs(object): - """ - L{ListenFDs} provides access to file descriptors inherited from systemd. - - Typically L{ListenFDs.fromEnvironment} should be used to construct a new - instance of L{ListenFDs}. - - @cvar _START: File descriptors inherited from systemd are always - consecutively numbered, with a fixed lowest "starting" descriptor. This - gives the default starting descriptor. Since this must agree with the - value systemd is using, it typically should not be overridden. - @type _START: C{int} - - @ivar _descriptors: A C{list} of C{int} giving the descriptors which were - inherited. - """ - _START = 3 - - def __init__(self, descriptors): - """ - @param descriptors: The descriptors which will be returned from calls to - C{inheritedDescriptors}. - """ - self._descriptors = descriptors - - - @classmethod - def fromEnvironment(cls, environ=None, start=None): - """ - @param environ: A dictionary-like object to inspect to discover - inherited descriptors. By default, C{None}, indicating that the - real process environment should be inspected. The default is - suitable for typical usage. - - @param start: An integer giving the lowest value of an inherited - descriptor systemd will give us. By default, C{None}, indicating - the known correct (that is, in agreement with systemd) value will be - used. The default is suitable for typical usage. - - @return: A new instance of C{cls} which can be used to look up the - descriptors which have been inherited. - """ - if environ is None: - from os import environ - if start is None: - start = cls._START - - descriptors = [] - - try: - pid = int(environ['LISTEN_PID']) - except (KeyError, ValueError): - pass - else: - if pid == getpid(): - try: - count = int(environ['LISTEN_FDS']) - except (KeyError, ValueError): - pass - else: - descriptors = range(start, start + count) - del environ['LISTEN_PID'], environ['LISTEN_FDS'] - - return cls(descriptors) - - - def inheritedDescriptors(self): - """ - @return: The configured list of descriptors. - """ - return list(self._descriptors) |