Split System Resources Into Version and System Reources Component

[LeStarch]

F´ Version
Affected Component

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Feature Description

The System Resources component internalizes version telemetry, command, and events. We should build a new version component that does the following:

1. Version events (EVRs) at start-up and upon command
2. Version telemetry channels (EHA)
3. Versions to track:
4. Fprime framework version (git version of F´ repo)
5. Project version (git version of project repo)
6. Library versions (git version and name of each fprime-library repo)

[thomas-bc]

Potentially in scope: #1837 #1561

[Shivaly-Reddy]

@LeStarch : How do we track version at start-up? What part of the logic kicks of startup from version component?

[LeStarch]

@Shivaly-Reddy F´ Active components allow you to override the preamble function to do something right when their thread starts-up. This component is active, yes?

An example is:

fprime/Svc/ActiveRateGroup/ActiveRateGroup.hpp

Line 109 in 7724562

void preamble();

fprime/Svc/ActiveRateGroup/ActiveRateGroup.cpp

Lines 55 to 57 in 7724562

	void ActiveRateGroup::preamble() {
	this->log_DIAGNOSTIC_RateGroupStarted();
	}

Note: the task lifecycle looks like this:

1. Call preamble
2. Loop on "dispatch message"

Thus the preamble is called once, and then all the messages (commands and port invocations) are dispatched for the duration.

[Shivaly-Reddy]

Thanks @LeStarch. I was looking at FileDownlink preamble calls and was wondering about the component being active. It is currently a passive component, just because SystemResources was and because this is derived from it. I can switch it to an active component but looking into understanding all that entails an active component