dan
b49beb2c86
fifo(7) says
Under Linux, opening a FIFO for read and write will succeed both
in blocking and nonblocking mode. POSIX leaves this behavior
undefined. This can be used to open a FIFO for writing while
there are no readers available.
When a process tries to write to a FIFO that is not opened for
read on the other side, the process is sent a SIGPIPE signal.
but ... that doesn't match what I saw, which was that it carried on
writing until the buffer filled and then it blocked or returned -1
(depending on O_NONBLOCK)
Switch to opening O_WRONLY | O_NONBLOCK and retrying periodically
if it fails
Liminix
A Nix-based system for configuring consumer wifi routers or IoT device devices, of the kind that OpenWrt or DD-WRT or Gargoyle or Tomato run on. It's a reboot/restart/rewrite of NixWRT.
This is not NixOS-on-your-router: it's aimed at devices that are underpowered for the full NixOS experience. It uses busybox tools, musl instead of GNU libc, and s6-rc instead of systemd.
The Liminix name comes from Liminis, in Latin the genitive declension of "limen", or "of the threshold". Your router stands at the threshold of your (online) home and everything you send to/receive from the outside word goes across it.
Current status (does it work yet?)
Liminix is pre-1.0. We are still finding new and better ways to do things, and there is no attempt to maintain backward compatibility with the old ways.
The NEWS file (available wherever you found this README) is a high-level overview of breaking changes.
Development mostly happens on the main branch, which is therefore
not guaranteed to build or to work on every commit. For the latest
functioning version, see the CI system and pick a revision with all jobs green.
Documentation
Documentation is in the doc directory. You can build it by running
nix-shell -p sphinx --run "make -C doc hardware.rst html"
Rendered documentation corresponding to the latest commit on main
is published to https://www.liminix.org/doc/
Extremely online
There is a #liminix IRC channel on the OFTC
network in which you are welcome. You can also connect with a Matrix
client by joining the room #_oftc_#liminix:matrix.org.
In the IRC channel, as in all Liminix project venues, please conduct yourself according to the Liminix Code of Conduct.