The epoll/select syscalls and the file descriptors for TCPConns are exposed, so a lot can be done in third-party packages; I linked some relevant stuff in anoth

The epoll/select syscalls and the file descriptors for TCPConns are exposed, so a lot can be done in third-party packages; I linked some relevant stuff in another comment. It's kinda hard for me to imagine explicit wait APIs being deeply integrated with std, though; maybe if things reached the point where sitting on buffers became the bottleneck for a lot of apps (in which case, dang).