s6
Software
skarnet.org

The s6-fdholder-list program

s6-fdholder-list lists the descriptors currently held by a fd-holding daemon.

Interface

     s6-fdholder-list [ -t timeout ] path

• s6-fdholder-list executes into s6-ipcclient path s6-fdholder-listc id. It does nothing else: it is just a convenience program. The s6-ipcclient program connects to a Unix socket at path, and the s6-fdholder-listc program transmits the instruction over the socket, and gets and prints the result.

Options

• -t timeout : if the operation cannot be processed in timeout milliseconds, then fail with an error message. Communications with the server should be near-instant, so this option is only here to protect users against programming errors (connecting to the wrong socket, for instance).