Nick Mathewson 81dd04a726 Add a "flags" field to evbuffer callbacks.
For now, there is just one: enabled.  This lets us avoid lots of
mallocs/frees/tailq-manipulations just to turn a callback on and off.
The revised bufferevent code wants this.

svn:r1047
2009-01-23 18:04:34 +00:00
..
2008-06-21 02:21:25 +00:00