Solution: removed

Solution: correctly dereference pointer in test.

Solution: Return an enum from rm instead of a bool, and adapt existing uses

Solution: added test case

Solution: introduce a type template argument

Solution: added further test cases

Solution: added test case, reduced code duplication in tests

Solution: added unit test and assertions

Solution: add test case

Solution: added some test cases for rm

Solution: added test case

Solution: add some more test cases

Solution: made mtrie generic (to remove complex dependency on pipe_t),
and added some unit tests

Solution: fix order of statements in test_events_t

reuse

Solution: extract into functions defined in ip.hpp

Problem: signaler_t::make_fdpair not reusable

Solution: move make_fdpair to ip.hpp

Problem: epoll worker with no fds cannot be stopped

Solution: use interruptible epoll_pwait call

Problem: insufficient unit tests for poller

Solution: add test cases

Solution: set up initial unit tests