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    SubjectRe: [PATCH] 2.5.46: epoll ep_insert doesn't wake waiters if events exist
    Date
    Looking at the documentation at
    http://www.xmailserver.org/linux-patches/epoll_wait.txt, I noticed that the
    description for epoll_wait states: "On success, epoll_wait(2) returns the
    number of file descriptors ready for the requested I/O." My question is if
    I have, for example, 1000 sockets registered with epoll and 100 of them have
    received data and I call epoll_wait with max_events set to 10, will
    epoll_wait return 10 or 100? Furthermore, does the edge-triggered nature of
    epoll "eat the edge" for the other 90 sockets even though they didn't get
    returned? Finally, if those 10 sockets get more data before I call
    epoll_wait with max_events = 10 again, will those same 10 sockets get
    returned?

    - Mark


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