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epoll_ctl.2: After EPOLLHUP, EOF will be seen only after all data has been consumed 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-05-02 09:26:41 +02:00
parent 7e8924ba6a
commit ea735ea85e
1 changed files with 4 additions and 0 deletions
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man2/epoll_ctl.2
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@ -130,6 +130,10 @@ Hang up happened on the associated file descriptor.
.BR epoll_wait (2)
will always wait for this event; it is not necessary to set it in
.IR events .
Note that when reading from a channel such as a pipe or a stream socket,
this event merely indicates that the peer closed its end of the channel.
Subsequent reads from the channel will return 0 (end of file)
only after all outstanding data in the channel has been consumed.
.TP
.B EPOLLET
Sets the Edge Triggered behavior for the associated file descriptor.