This commit add the ability to initd to reload the service configuration
while running. The new configuration is merged with the existing one as
follows:
For each target:
- If the existing service list is not NULL, we have not started that
target yet. Simply replace it with the new list.
- If it is NULL, the services have already been started.
- First, remove all entries for services in that target that no
loner exist (except from the 'running' list).
- Second, add new services that we don't have yet. Treat them as
recently diseased and let the user start them manualy.
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
Simply execute the last entry in the list directly instead of forking and
remove the cleanup code.
If the list is empty, we return success.
If the list only has one entry, we directly execute that. No need to make a
distinction between single entry vs list anymore.
If the list is an actual list, we run it as before but execute the last one
directly. Typically, the last one is something like a daemon preceeded by
setup code. The daemon ends up directly underneath init, without a dummy
waiting runsvc stuck in the process list.
If we always do an exec, there is no point in doing cleanup. All our mapped
memory is evicted anyway. Same if we exit appruptly because of an error.
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
- mimic format of initd
- skip formatting if not a tty
- distinguish exited because failed vs exited because done
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
- Do a getline() & process in rdline instead of doing a read per character
and feeding it through a state machine.
- Move splitkv to rdcfg.c, the only place where it is used
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
We already print the services in dependency order, for each target
individually. There is no need to print the depencies and the target
for each service.
In addtion, printing name and description in one line shortens the
resulting list.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This commit adds a "truncate" flag that can be added to a service
description between the "tty" keyword and the path string.
If the flag is set, the output file is truncated to 0 after opening.
This probably requires some remodeling in the future as the tty keyword
no longer deals with just tty devices.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This can can be used by shell scripts to produce syslog messages,
as well as aiding in debugging the usyslogd daemon.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
We no longer need to keep entire scripts in init program (i.e. saving space)
and reduce the code and complexity of the init program.
The runsvc tool can later be extended to do more complex child setup, such
as configuring namespaces or seccomp without adding complexity or memory
footprint to init.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
