true when the fallback backend is active.OsPoller.usingFallback
bool usingFallback() @property const pure @safe nothrow @nogcReport whether this poller instance is using the epoll fallback path.
bool usingFallback() @property const pure @safe nothrow @nogcReport whether this poller instance is using the epoll fallback path.
true when the fallback backend is active.