Nopoll debug levels.

While reporting log to the console, these levels are used to report the severity for such log.

Enumerator
NOPOLL_LEVEL_DEBUG 

Debug level.

Only used to report common circumstances that represent the proper functionality.

NOPOLL_LEVEL_WARNING 

Warning level.

Only used to report that an internal issue have happend that could be interesting while reporting error, but it could also mean common situations.

NOPOLL_LEVEL_CRITICAL 

Critical level.

Only used to report critical situations where some that have happened shouldn't.

This level should only be used while reporting critical situations.