zeromq/czmq — pull request #791 by skaes (2014-11-05 19:00:35+00:00)
Title: Problem: impossible to get at keys of key/value pairs in a zring

Solution: provide zring_key() method:

// Return the key of the current item in the ring. If the ring is empty, or the
// cursor passed the end of the ring, returns NULL. Does not change the cursor.
CZMQ_EXPORT const void * zring_key (zring_t *self);