systemd.daemon module¶
- daemon.LISTEN_FDS_START = 3¶
- 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).
- systemd.daemon._is_fifo(fd, path) bool¶
Returns True iff the descriptor refers to a FIFO or a pipe. Wraps sd_is_fifo(3).
- 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.
- systemd.daemon._is_socket_unix(fd, type, listening, path) bool¶
Wraps sd_is_socket_unix(3).
- 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.
- systemd.daemon._is_mq(fd, path) bool¶
Returns True iff the descriptor refers to a POSIX message queue. Wraps sd_is_mq(3).
- 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).
- systemd.daemon.booted() bool¶
Return True iff this system is running under systemd. Wraps sd_booted(3).
- systemd.daemon.is_socket_inet(fileobj, family=AddressFamily.AF_UNSPEC, type=0, listening=-1, port=0)[source]¶
- 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.
- systemd.daemon.listen_fds(unset_environment=True)[source]¶
Return a list of socket activated descriptors
Example:
(in primary window) $ systemd-socket-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]
- systemd.daemon.listen_fds_with_names(unset_environment=True)[source]¶
Return a dictionary of socket activated descriptors as {fd: name}
Example:
(in primary window) $ systemd-socket-activate -l 2000 -l 4000 --fdname=2K:4K python3 -c \ 'from systemd.daemon import listen_fds_with_names; print(listen_fds_with_names())' (in another window) $ telnet localhost 2000 (in primary window) ... Execing python3 (...) [3]