The s6-fdholder-delete program
s6-fdholder-delete connects to a
fd-holding daemon listening on a
Unix domain socket, and deletes a file descriptor from the
s6-fdholder-delete [ -t timeout ] path id
- s6-fdholder-delete connects to a
s6-fdholderd server process listening on
- It tells the server to close the file descriptor that has been
stored with identifier id.
- -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).
- 0: success.
- 1: the server denied the operation. The meaning of the error messages
is explained here.
- 100: wrong usage.
- 111: system call failed - that includes attempting to connect to a
nonexistent socket, or one where no s6-fdholderd
daemon is listening.
s6-fdholder-delete /service/fdholderd/s MYSOCKET
will tell a s6-fdholderd daemon listening on the
/service/fdholderd/s socket to close the file descriptor
dentified as MYSOCKET.