[Unit]
Description=MARS global single-threaded daemon-reloead
Documentation=https://github.com/schoebel/mars/docu/mars-manual.pdf

## The trick is to "misuse" this service (which exists only once)
## for inhibiting startup of "systemctl daemon-real" in parallel to
## itself.
## In addition, Before= and After= depencencies may be used for
## runtime exclusion of parallelism from/with other services.
## This appears to necessary in some places, where races have
## between daemon-reload and startup of other service have been observed.
Before=mars-trigger.service

[Service]
# Important for blocking parallelism with itself
Type=oneshot
RemainAfterExit=no
# Important for avoiding failures: do not send any signals
KillMode=none

ExecStart=/usr/bin/systemctl daemon-reload

[Install]
WantedBy=mars.service