Structure passed to an evbuffer_cb_func evbuffer callback
@see evbuffer_cb_func, evbuffer_add_cb()
The number of bytes added since callbacks were last invoked.
The number of bytes removed since callbacks were last invoked.
The number of bytes in this evbuffer when callbacks were last * invoked.
See Implementation
Structure passed to an evbuffer_cb_func evbuffer callback
@see evbuffer_cb_func, evbuffer_add_cb()