[zeromq-dev] ZMQ_POLLER

[Doron Somech]

Hi All,

Few days ago I pushed ZMQ_POLLER to zeromq master. ZMQ_POLLER is a new API
to poll on multiple sockets and hopefully in the future will deprecate
ZMQ_POLL method.
ZMQ_POLLER API is very similar to zpoller from CZMQ. There are two main
reasons for ZMQ_POLLER:

* ZMQ_POLL doesn't support client and server sockets. I want one simple API
which will be able to support both thread-safe and not thread safe sockets.
ZMQ_POLLER support both.
* Using ZMQ_POLL is actually a little complicated to use and most binding
implement something like zpoller to make the usage simpler, now binding can
use ZMQ_POLLER directly.

The API is of course not stable yet and will appreciate comments, anyway
following is the ZMQ_POLLER API:


ZMQ_EXPORT void *zmq_poller_new ();
ZMQ_EXPORT int  zmq_poller_close (void *poller);
ZMQ_EXPORT int  zmq_poller_add_socket (void *poller, void *socket, void
*user_data, short events);
ZMQ_EXPORT int  zmq_poller_modify_socket (void *poller, void *socket, short
events);
ZMQ_EXPORT int  zmq_poller_remove_socket (void *poller, void *socket);
ZMQ_EXPORT int  zmq_poller_wait (void *poller, zmq_poller_event_t *event,
long timeout);

ZMQ_EXPORT int zmq_poller_add_fd (void *poller, SOCKET fd, void *user_data,
short events);
ZMQ_EXPORT int zmq_poller_modify_fd (void *poller, SOCKET fd, short events);
ZMQ_EXPORT int zmq_poller_remove_fd (void *poller, SOCKET fd);

Following are two relevant pull requests (one of them is not merged yet):

https://github.com/zeromq/libzmq/pull/1616
https://github.com/zeromq/libzmq/pull/1611

Doron
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