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from socket import AF_UNSPEC as _AF_UNSPEC
from ._daemon import (__version__,
booted,
notify,
_listen_fds,
_is_fifo,
_is_socket,
_is_socket_inet,
_is_socket_sockaddr,
_is_socket_unix,
_is_mq,
LISTEN_FDS_START)
def _convert_fileobj(fileobj):
try:
return fileobj.fileno()
except AttributeError:
return fileobj
def is_fifo(fileobj, path=None):
fd = _convert_fileobj(fileobj)
return _is_fifo(fd, path)
def is_socket(fileobj, family=_AF_UNSPEC, type=0, listening=-1):
fd = _convert_fileobj(fileobj)
return _is_socket(fd, family, type, listening)
def is_socket_inet(fileobj, family=_AF_UNSPEC, type=0, listening=-1, port=0):
fd = _convert_fileobj(fileobj)
return _is_socket_inet(fd, family, type, listening, port)
def is_socket_sockaddr(fileobj, address, type=0, flowinfo=0, listening=-1):
"""Check socket type, address and/or port, flowinfo, listening state.
Wraps sd_is_socket_inet_sockaddr(3).
`address` is a systemd-style numerical IPv4 or IPv6 address as used in
ListenStream=. A port may be included after a colon (":").
See systemd.socket(5) for details.
Constants for `family` are defined in the socket module.
"""
fd = _convert_fileobj(fileobj)
return _is_socket_sockaddr(fd, address, type, flowinfo, listening)
def is_socket_unix(fileobj, type=0, listening=-1, path=None):
fd = _convert_fileobj(fileobj)
return _is_socket_unix(fd, type, listening, path)
def is_mq(fileobj, path=None):
fd = _convert_fileobj(fileobj)
return _is_mq(fd, path)
def listen_fds(unset_environment=True):
"""Return a list of socket activated descriptors
Example::
(in primary window)
$ systemd-activate -l 2000 python3 -c \\
'from systemd.daemon import listen_fds; print(listen_fds())'
(in another window)
$ telnet localhost 2000
(in primary window)
...
Execing python3 (...)
[3]
"""
num = _listen_fds(unset_environment)
return list(range(LISTEN_FDS_START, LISTEN_FDS_START + num))