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ff503d9bd7
* Move some code from plugin_utils to module_utils. * First version of docker_container_exec module. * Linting. * Avoid using display. * Move common socket_handler code to module_utils. * Add module support, use it in docker_container_exec. * Add tests. * Fix copyright lines. * Add this and other 'new' modules to README. * Apply suggestions from code review Co-authored-by: Andrew Klychkov <aaklychkov@mail.ru> * Update plugins/modules/docker_container_exec.py Co-authored-by: Andrew Klychkov <aaklychkov@mail.ru>
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
# Copyright (c) 2019-2021, Felix Fontein <felix@fontein.de>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import fcntl
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import os
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import os.path
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import socket as pysocket
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from ansible.module_utils.six import PY3
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def make_unblocking(sock):
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if hasattr(sock, '_sock'):
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sock._sock.setblocking(0)
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elif hasattr(sock, 'setblocking'):
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sock.setblocking(0)
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else:
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fcntl.fcntl(sock.fileno(), fcntl.F_SETFL, fcntl.fcntl(sock.fileno(), fcntl.F_GETFL) | os.O_NONBLOCK)
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def _empty_writer(msg):
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pass
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def shutdown_writing(sock, log=_empty_writer):
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if hasattr(sock, 'shutdown_write'):
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sock.shutdown_write()
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elif hasattr(sock, 'shutdown'):
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try:
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sock.shutdown(pysocket.SHUT_WR)
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except TypeError as e:
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# probably: "TypeError: shutdown() takes 1 positional argument but 2 were given"
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log('Shutting down for writing not possible; trying shutdown instead: {0}'.format(e))
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sock.shutdown()
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elif PY3 and isinstance(sock, getattr(pysocket, 'SocketIO')):
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sock._sock.shutdown(pysocket.SHUT_WR)
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else:
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log('No idea how to signal end of writing')
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def write_to_socket(sock, data):
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if hasattr(sock, '_send_until_done'):
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# WrappedSocket (urllib3/contrib/pyopenssl) doesn't have `send`, but
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# only `sendall`, which uses `_send_until_done` under the hood.
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return sock._send_until_done(data)
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elif hasattr(sock, 'send'):
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return sock.send(data)
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else:
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return os.write(sock.fileno(), data)
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