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Improve opening para describing purpose of select().

This commit is contained in:
Michael Kerrisk 2006-04-21 10:41:09 +00:00
parent 9eaee63177
commit 5e01a1de98
1 changed files with 12 additions and 2 deletions
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14
man2/select.2
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@ -74,9 +74,19 @@ select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO \- synchronous I/O multiplexi
.BR select ()
and
.BR pselect ()
wait for one or more file descriptors to change status.
allow a process to monitor multiple file descriptors,
waiting until one or more of the file descriptors become "ready"
for some class of I/O operation (e.g., input possible).
A file descriptor is consider ready if it is possible to
perform the corresponding I/O operation (e.g.,
.BR read (2))
without blocking.
.PP
Their operation is identical, with three differences:
The operation of
.BR select ()
and
.BR pselect ()
is identical, with three differences:
.TP
(i)
.BR select ()