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Hello, this patch adds ioloop handler using Linux 2.6 epoll API. I'm not sure is it ready for inclusion right now, but it works for me and survives deadconn test with 1024 simultaneous connections. Please take a look and comment. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke at donpac.ru | PGP key: wwwkeys.pgp.net -------------- next part -------------- A

...at poll(2) uses > level-triggered notifications as aposed to epoll(7) which uses > edge-triggered notifications. > According to epoll(7) section "Level-triggered and edge-triggered" says: By contrast, when used as a level-triggered interface (the default, when EPOLLET is not specified), epoll is simply a faster poll(2), and can be used wherever the latter is used since it shares the same seman? tics. So you should not have any issue using epoll instead of poll. > - After calling aio_get_direction(3), can I know that reading/writing > woul...

Hello, As part of the Rust bindings for Libnbd, I try to integrate the asynchronous (aio_*) functions with Tokio <https://docs.rs/tokio/latest/tokio/>, the most used asynchronous runtime in Rust. However, in its eventloop, Tokio uses epoll(7) instead of poll(2) (which is used internally in Libnbd). The difference is that poll(2) uses level-triggered notifications as aposed to epoll(7)

...uot;..., 127) = 127 > time(NULL) = 1219566034 > stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=413, ...}) = 0 > write(3, "2008-08-24 18:20:34 D [tcp.c:87:"..., 80) = 80 > epoll_ctl(5, EPOLL_CTL_DEL, 6, {EPOLLOUT|EPOLLMSG|EPOLLERR|EPOLLET|0x37f0e820, {u32=3086127092, u64=626792034022363124}}) = 0 > close(6) = 0 > futex(0x8b342cc, FUTEX_WAIT, 3, NULL) = 0 > futex(0x8b342b0, FUTEX_WAKE, 1) = 0 > epoll_wait(5, {{EPOLLIN|EPOLLERR|EPOLLHUP, {u32=145960360, u64=145960360}}}, 1, -1) = 1...