Commit d5ebcf370debb006964814e0529e73736dcad93b
2010-03-30T16:47:37
Rewrite evbuffer_expand and its users The previous evbuffer_expand was not only incorrect; it was inefficient too. On all questions of time vs memory tradeoffs, it chose to burn time in order to avoid wasting memory. The new code tries to be a little more balanced: it only resizes an existing chain when doing so doesn't require too much copying, and when failing to do so would waste a lot of the chain's space. This patch also rewrites evbuffer_chain_insert to work properly with last_with_datap, and adds a few convenience functions to buffer.c.