Support named systemd sockets

[twisted-trac]

	@jml reported
Trac ID	trac#8147
Type	enhancement
Created	2015-12-18 12:39:15Z

systemd 227 added support for named sockets: https://github.com/systemd/systemd/blob/master/NEWS#L316-L322

These are documented at http://www.freedesktop.org/software/systemd/man/sd_listen_fds.html

They are exported as the LISTEN_FDNAMES environment variables, "which may contain a colon-separated list of names".

This could be a useful thing to support, esp. to mitigate the limitations in #8146.

Searchable metadata

trac-id__8147 8147
type__enhancement enhancement
reporter__jml jml
priority__normal normal
milestone__None None
branch__ 
branch_author__ 
status__new new
resolution__None None
component__core core
keywords__None None
time__1450442355443783 1450442355443783
changetime__1450442355443783 1450442355443783
version__None None
owner__None None