| 1 | libev is modelled after libevent (http://monkey.org/~provos/libevent/), but aims |
1 | libev is a high-performance event loop/event model with lots of features. |
| 2 | to be faster and more correct, and also more featureful. Examples: |
2 | (see benchmark at http://libev.schmorp.de/bench.html) |
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| 4 | - multiple watchers can wait for the same event without deregistering others. |
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| 5 | - fork() is supported and can be handled. |
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| 6 | - timers are handled as a priority queue (faster) |
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| 7 | - watchers use less memory (faster) |
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| 8 | - less calls to epoll_ctl (faster) |
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5 | ABOUT |
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7 | Homepage: http://software.schmorp.de/pkg/libev |
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8 | Mailinglist: libev@lists.schmorp.de |
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9 | http://lists.schmorp.de/cgi-bin/mailman/listinfo/libev |
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10 | Library Documentation: http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod |
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12 | Libev is modelled (very losely) after libevent and the Event perl |
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13 | module, but is faster, scales better and is more correct, and also more |
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14 | featureful. And also smaller. Yay. |
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16 | Some of the specialties of libev not commonly found elsewhere are: |
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18 | - extensive and detailed, readable documentation (not doxygen garbage). |
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19 | - fully supports fork, can detect fork in various ways and automatically |
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20 | re-arms kernel mechanisms that do not support fork. |
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21 | - highly optimised select, poll, epoll, kqueue and event ports backends. |
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22 | - filesystem object (path) watching (with optional linux inotify support). |
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23 | - wallclock-based times (using absolute time, cron-like). |
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24 | - relative timers/timeouts (handle time jumps). |
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25 | - fast intra-thread communication between multiple |
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26 | event loops (with optional fast linux eventfd backend). |
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27 | - extremely easy to embed. |
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28 | - very small codebase, no bloated library. |
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29 | - fully extensible by being able to plug into the event loop, |
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30 | integrate other event loops, integrate other event loop users. |
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31 | - very little memory use (small watchers, small event loop data). |
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32 | - optional C++ interface allowing method and function callbacks |
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33 | at no extra memory or runtime overhead. |
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34 | - optional Perl interface with similar characteristics (capable |
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35 | of running Glib/Gtk2 on libev, interfaces with Net::SNMP and |
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36 | libadns). |
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37 | - support for other languages (multiple C++ interfaces, D, Ruby, |
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38 | Python) available from third-parties. |
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39 | |
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40 | Examples of programs that embed libev: the EV perl module, |
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41 | rxvt-unicode, gvpe (GNU Virtual Private Ethernet), the Deliantra MMORPG |
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42 | server (http://www.deliantra.net/), Rubinius (a next-generation Ruby |
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43 | VM), the Ebb web server, the Rev event toolkit. |
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46 | CONTRIBUTORS |
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47 | |
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48 | libev was written and designed by Marc Lehmann and Emanuele Giaquinta. |
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50 | The following people sent in patches or made other noteworthy |
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51 | contributions to the design (for minor patches, see the Changes |
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52 | file. If I forgot to include you, please shout at me, it was an |
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53 | accident): |
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54 | |
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55 | W.C.A. Wijngaards |
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56 | Christopher Layne |
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57 | Chris Brody |
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58 | |
