* Add network change detector and listeners
* Add network toggle listener to VPNService
* Add unit tests for ConcreteNetworkChangeListener
* Rename NetworkChangeListener to NetworkAvailabilityListener
* Change EngineRunner's Set implementation
From HashSet to ConcurrentHashMap's KeySet,
which is thread-safe.
* Update submodule to the latest tag (v0.59.6)
* Add EngineRestarter to restart the Go engine
* Add LOGTAG to NetworkChangeDetector
* Add some documentation to NetworkToggleListener
* Use EngineRestarter as implementation of NetworkToggleListener
When subscribing to ConcreteNetworkAvailabilityListener
* Replace HashMap usage with ConcurrentHashMap
The availableNetworkTypes HashMap is accessed from network
callback threads without synchronization
* Wrap connectivityManager.unregisterNetworkCallback with try-catch
* Add restart runnable and timeout callback to EngineRestarter
Restart runnable is used as a debouncing mechanism to
prevent concurrent restarts
Timeout callback is to reset the isRestartInProgress flag's
value if the engine takes too long to restart
* Update git submodule reference to latest tag
* Reverse cleanup order on VPNService's onDestroy
Now it disposes of network listener components
before stopping engineRunner
* Ci tests (#99)
Add testing steps for CI
* Remove line break
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Co-authored-by: Zoltan Papp <zoltan.pmail@gmail.com>
Maycon Santos
Diego Romar
Zoltan Papp