Here are the data structures with brief descriptions:
| Cbufferevent | An opaque type for handling buffered IO |
| Cevbuffer | An evbuffer is an opaque data type for efficiently buffering data to be sent or received on the network |
| Cevbuffer_cb_info | Structure passed to an evbuffer_cb_func evbuffer callback |
| Cevbuffer_iovec | Describes a single extent of memory inside an evbuffer |
| Cevbuffer_ptr | Pointer to a position within an evbuffer |
| Cevent | Structure to represent a single event |
| Cevent_base | Structure to hold information and state for a Libevent dispatch loop |
| Cevent_config | Configuration for an event_base |
| Cevthread_condition_callbacks | This structure describes the interface a threading library uses for condition variables |
| Cevthread_lock_callbacks | This structure describes the interface a threading library uses for locking |
| Cevutil_addrinfo | A definition of struct addrinfo for systems that lack it |
