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Clarify zmq_poll restrictions

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Martin Sustrik 2010-03-16 15:23:55 +01:00
parent 1705ec2247
commit 8a3f97400a
1 changed files with 3 additions and 0 deletions
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doc/zmq_poll.txt
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@ -36,6 +36,9 @@ descriptor 'fd', for the event(s) specified in 'events'. If both 'socket' and
'fd' are set in a single *zmq_pollitem_t*, the 0MQ socket referenced by 'fd' are set in a single *zmq_pollitem_t*, the 0MQ socket referenced by
'socket' shall take precedence and the value of 'fd' shall be ignored. 'socket' shall take precedence and the value of 'fd' shall be ignored.
NOTE: All 0MQ sockets passed to the _zmq_poll()_ function must share the
same 0MQ 'context' and must belong to the thread calling _zmq_poll()_.
For each *zmq_pollitem_t* item, _zmq_poll()_ shall first clear the 'revents' For each *zmq_pollitem_t* item, _zmq_poll()_ shall first clear the 'revents'
member, and then indicate any requested events that have occured by setting the member, and then indicate any requested events that have occured by setting the
bit corresponding to the event condition in the 'revents' member. bit corresponding to the event condition in the 'revents' member.