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Hash : 2a6d2a1e
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Date : 2010-03-10T22:16:14
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.
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- LICENSE
- Makefile.am
- Makefile.nmake
- README
- WIN32-Code/
- arc4random.c
- autogen.sh
- buffer.c
- buffer_iocp.c
- bufferevent-internal.h
- bufferevent.c
- bufferevent_async.c
- bufferevent_filter.c
- bufferevent_openssl.c
- bufferevent_pair.c
- bufferevent_ratelim.c
- bufferevent_sock.c
- changelist-internal.h
- compat/
- configure.in
- defer-internal.h
- devpoll.c
- epoll.c
- epoll_sub.c
- evbuffer-internal.h
- evdns.3
- evdns.c
- evdns.h
- event-internal.h
- event.3
- event.c
- event.h
- event_iocp.c
- event_rpcgen.py
- event_tagging.c
- evhttp.h
- evmap-internal.h
- evmap.c
- evport.c
- evrpc-internal.h
- evrpc.c
- evrpc.h
- evsignal-internal.h
- evthread-internal.h
- evthread.c
- evthread_pthread.c
- evthread_win32.c
- evutil.c
- evutil.h
- evutil_rand.c
- ht-internal.h
- http-internal.h
- http.c
- include/
- iocp-internal.h
- ipv6-internal.h
- kqueue.c
- libevent.pc.in
- listener.c
- log-internal.h
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- m4/
- minheap-internal.h
- missing
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- mm-internal.h
- poll.c
- ratelim-internal.h
- sample/
- select.c
- signal.c
- stamp-h.in
- strlcpy-internal.h
- strlcpy.c
- test/
- util-internal.h
- whatsnew-2.0.txt
- win32select.c
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README
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0. BUILDING AND INSTALLATION (Briefly) $ ./configure $ make $ make verify # (optional) $ sudo make install 1. BUILDING AND INSTALLATION (In Depth) To build libevent, type $ ./configure && make (If you got libevent from the git repository, you will first need to run the included "autogen.sh" script in order to generate the configure script.) Install as root via # make install You can run the regression tests by running $ make verify Before, reporting any problems, please run the regression tests. To enable the low-level tracing build the library as: CFLAGS=-DUSE_DEBUG ./configure [...] Standard configure flags should work. In particular, see: --disable-shared Only build static libraries --prefix Install all files relative to this directory. The configure script also supports the following flags: --enable-gcc-warnings Enable extra compiler checking with GCC. --disable-malloc-replacement Don't let applications replace our memory management functions --disable-openssl Disable support for OpenSSL encryption. --disable-thread-support Don't support multithreaded environments. 2. USEFUL LINKS: For the latest released version of Libevent, see the official website at http://monkey.org/~provos/libevent/ . There's a pretty good work-in-progress manual up at http://www.wangafu.net/~nickm/libevent-book/ . For the latest development versions of Libevent, access our Git repository via "git clone git://levent.git.sourceforge.net/gitroot/levent/libevent" You can browse the git repository online at http://levent.git.sourceforge.net/git/gitweb-index.cgi . To report bugs, request features, or submit patches to Libevent, use the Sourceforge trackers at https://sourceforge.net/tracker/?group_id=50884 . There's also a libevent-users mailing list for talking about Libevent use and development: http://archives.seul.org/libevent/users/ 3. ACKNOWLEDGMENTS The following people have helped with suggestions, ideas, code or fixing bugs: Alejo Weston Andros Adamson William Ahern Stas Bekman Ka-Hing Cheung Andrew Danforth Christopher Davis Mike Davis Shie Erlich Alexander von Gernler Artur Grabowski Aaron Hopkins Tani Hosokawa Claudio Jeker Valery Kyholodov Marko Kreen Scott Lamb Adam Langley Christopher Layne Philip Lewis David Libenzi Moshe Litvin Hagne Mahre Lubomir Marinov Nick Mathewson James Mansion Andrey Matveev Caitlin Mercer Trond Norbye Richard Nyberg Jon Oberheide Phil Oleson Dave Pacheco Tassilo von Parseval Pierre Phaneuf Ryan Phillips Jon Poland Bert JW Regeer Hanna Schroeter Kevin Springborn Ferenc Szalai Dug Song Zack Weinberg Taral propanbutan mmadia If we have forgotten your name, please contact us.