snooze: add Linux rtcwake support #19
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Description
This patch brings additional power-savings by enabling the usage of the RTC wake alarm as a means of ensuring machine availability (powered-on and readiness to process) during the next available scheduled task launch.
Integrates with Systemd or Elogind for seat/idle management. If not using Elogind, a small change is needed to switch to using
systemd-inhibitas opposed toelogind-inhibit.Implementation
The RTC wake alarm is programmed using "cooperative programming" between one-or-more running
snoozebinary instances, and will not interfere with one-another.The code might be a bit rough, but has been in operation for a few months working just beautifully.