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tokio/src/reactor
Andreas Rottmann 5bab8e85b9 Handle hup events as indicating read readiness
Using Linux's `epoll(7)` interface, a `EPOLLHUP` condition is
signalled for the reading end of a pipe or socket when the other end
is closed for writing. This may happen in combination with `EPOLLIN`
being signalled (if further data is available for reading), or with
`EPOLLIN`.

If `EPOLLHUP` is signalled without `EPOLLIN` it indicates an immediate
EOF condition, which will result in the next `read()` suceeding with 0
bytes read. It is thus not required to handle `EPOLLHUP` specially in
the reader, but we need to indicate readiness upon encountering it.

Looking at the `kqueue` and `windows` mio backends, they seem to be
turn a detected EOF and connection reset into `mio::Ready::hup()`
events, so it may be reasonable to speculate that this change is an
improvement for these platforms as well.

Fixes #117.
2016-12-08 17:52:40 +01:00
..
2016-09-07 22:12:14 -07:00
2016-09-07 22:12:41 -07:00