Is the current thread an event thread?

NOTE! This is not always the same as calling isEventLoopContext. If you are running blocking code from an event loop context, then this will return false but isEventLoopContext will return true.

Is the current thread a Vert.x thread? That's either a worker thread or an event loop thread

Is the current thread a worker thread?

NOTE! This is not always the same as calling isWorkerContext. If you are running blocking code from an event loop context, then this will return true but isWorkerContext will return false.