systemd.daemon module¶
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daemon.LISTEN_FDS_START= 3¶
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systemd.daemon._listen_fds(unset_environment=True) → int¶ Return the number of descriptors passed to this process by the init system as part of the socket-based activation logic. Wraps sd_listen_fds(3).
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systemd.daemon._is_fifo(fd, path) → bool¶ Returns True iff the descriptor refers to a FIFO or a pipe. Wraps sd_is_fifo(3).
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systemd.daemon._is_socket(fd, family=AF_UNSPEC, type=0, listening=- 1) → bool¶ Returns True iff the descriptor refers to a socket. Wraps sd_is_socket(3).
Constants for family are defined in the socket module.
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systemd.daemon._is_socket_unix(fd, type, listening, path) → bool¶ Wraps sd_is_socket_unix(3).
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systemd.daemon._is_socket_inet(fd, family=AF_UNSPEC, type=0, listening=- 1, port=0) → bool¶ Wraps sd_is_socket_inet(3).
Constants for family are defined in the socket module.
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systemd.daemon._is_mq(fd, path) → bool¶ Returns True iff the descriptor refers to a POSIX message queue. Wraps sd_is_mq(3).
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systemd.daemon.notify(status, unset_environment=False, pid=0, fds=None) → bool¶ Send a message to the init system about a status change. Wraps sd_notify(3).
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systemd.daemon.booted() → bool¶ Return True iff this system is running under systemd. Wraps sd_booted(3).
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systemd.daemon.is_socket(fileobj, family=<AddressFamily.AF_UNSPEC: 0>, type=0, listening=-1)[source]¶
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systemd.daemon.is_socket_inet(fileobj, family=<AddressFamily.AF_UNSPEC: 0>, type=0, listening=-1, port=0)[source]¶
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systemd.daemon.is_socket_sockaddr(fileobj, address, type=0, flowinfo=0, listening=- 1)[source]¶ 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.
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systemd.daemon.listen_fds(unset_environment=True)[source]¶ 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]