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Joachim Wiberg
ffb1db7d2d
A block title is a service identity, so two variants of one service
gated differently per platform cannot share a title. They do need to
share the barrier condition downstream services wait for, which until
now was spelled by the identity alone and so could not be shared:
service syslogd:udev {
if = "udevd"
conditions = { "run/udevadm:5/success" }
provides = "pid/syslogd"
command = "-syslogd -F"
}
Any namespace is allowed, since the point is publishing a name that
existing configurations already wait on. A claim on a condition that
is already owned is dropped with a warning naming the owner, and the
service still registers: the overlap is a configuration bug, and an
init system is more useful degraded than refusing to boot. A real
identity outranks a claim, pid/<ident> is how Finit tracks its own
services, so it is not up for grabs.
Claims are dropped before each reload re-reads the .conf files. Doing
it per service as it re-registers is not enough, since services are
read in file order and one re-registering would lose to a claim
another had not dropped yet, flipping the owner on every reload.
initctl cond dump asked who owned a condition only for the pid/
namespace and printed 'static' for usr/, which now hides a provider.
It asks first and falls back to what the namespace implies.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Finit is a fast, simple alternative to SysV init and systemd, designed for small and embedded Linux systems. It can also run on desktop and server systems, like finix.
Reverse engineered from the EeePC fastinit
"gaps filled with frog DNA …"
— Claudio Matsuoka
For detailed information, explore our extensive documentation
📚 http://finit-project.github.io
For working examples, see the 🚀 contrib/ section or these tutorials:
- 🛠️ Buildroot embedded Linux,
- 📦 Debian GNU/Linux,
- ⛰️ Alpine Linux, and
- 🌌 Void Linux
Note
Finit can run on various Linux distributions, but the bundled install scripts are examples only. They have been tested on amd64 (x86_64) systems with standard configurations.
For embedded systems, see these Buildroot-based examples: myLinux, Infix, or br2-finit-demo.