Gets all event notification mechanisms supported by Libevent.
This functions returns the event mechanism in order preferred by
Libevent. Note that this list will include all backends that
Libevent has compiled-in support for, and will not necessarily check
your OS to see whether it has the required resources.
@return an array with pointers to the names of support methods.
The end of the array is indicated by a NULL pointer. If an
error is encountered NULL is returned.
Gets all event notification mechanisms supported by Libevent.
This functions returns the event mechanism in order preferred by Libevent. Note that this list will include all backends that Libevent has compiled-in support for, and will not necessarily check your OS to see whether it has the required resources.
@return an array with pointers to the names of support methods. The end of the array is indicated by a NULL pointer. If an error is encountered NULL is returned.