evbuffer-internal.h

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Log

Commit	Date	Message
b7442f8e	2010-03-26 23:18:40	Replace last_with_data with a slightly smarter version To implement evbuffer_expand() properly, you need to be able to replace the last chunk that has data, which means that we need to keep track of the the next pointer pointing to the last_with_data chunk, not the last_with_data chunk itself.
2014ae4a	2010-03-26 14:30:14	Increase MIN_BUFFER_SIZE to 512 (1024 on 64-bit) This constant decides the smallest (and typical) size of each evbuffer chain. Since this number includes sizeof(evbuffer_chain) overhead, the old value (256) was just too low: on 64-bit platforms, it would spend nearly 20% of the allocations on overhead. The new values mean that we'll be spending closer to 5% of evbuffer allocations on overhead. It would be nice to get this number even lower if we can.
6f47bd12	2010-03-10 23:28:51	Remove previous_to_last from evbuffer
c8ac57f1	2010-03-10 23:24:14	Use last_with_data in place of previous_to_last This actually makes some of the code a lot simpler. The only ones that actually used previous_to_last for anything were reserving and committing space.
2a6d2a1e	2010-03-10 22:16:14	Revise evbuffer to add last_with_data This is the first patch in a series to replace previous_to_last with last_with_data. Currently, we can only use two partially empty chains at the end of an evbuffer, so if we have one with 511 bytes free, and another with 512 bytes free, and we try to do a 1024 byte read, we can't just stick another chain on the end: we need to reallocate the last one. That's stupid and inefficient. Instead, this patch adds a last_with_data pointer to eventually replace previous_to_last. Instead of pointing to the penultimated chain (if any) as previous_to_last does, last_with_data points to the last chain that has any data in it, if any. If all chains are empty, last_with_data points to the first chain. If there are no chains, last_with_data is NULL. The next step is to start using last_with_data everywhere that we currently use previous_to_last. When that's done, we can remove previous_to_last and the code that maintains it.
2c2618d8	2010-03-05 13:00:15	more whitespace normalization
17efc1cd	2010-03-04 01:25:51	Update all our copyright notices to say "2010"
e5bbd40a	2010-02-18 17:41:15	Clean up formatting: use tabs, not 8-spaces, to indent.
29151e65	2010-01-06 18:42:59	Fix byte counts when mixing deferred and non-deferred evbuffer callbacks. This patch finishes 390e0561, which was somehow committed in a half-finished state. It solves a failing unit test on windows.
390e0561	2009-12-22 15:52:02	Fix up behavior of never-defered callbacks a little