| 1 | Revision history for libev, a high-performance and full-featured event loop. |
1 | Revision history for libev, a high-performance and full-featured event loop. |
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2 | |
| 3 | TODO: revisit 59.x timer in the light of modern powersaving |
3 | TODO: for next ABI/API change, consider moving EV__IOFDSSET into io->fd instead and provide a getter. |
| 4 | TODO: maybe use timerfd to detect time jumps on linux |
4 | TODO: document EV_TSTAMP_T |
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5 | |
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6 | TODO: maybe allow events = 0 for io watchers |
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7 | - the 4.31 timerfd code wrongly changes the priority of the signal |
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8 | fd watcher, which is usually harmless unless signal fds are |
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9 | also used (found via cpan tester service). |
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10 | - the documentation wrongly claimed that user may modify fd and events |
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11 | members in io watchers when the wqatcher was stopped |
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12 | (found by b_jonas). |
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13 | - new ev_io_modify mutator which changes only the events member, |
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14 | which can be faster. |
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15 | - officially allow a zero events mask for io watchers. this should |
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16 | work with older libev versions as well but was not officially |
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17 | allowed before. |
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18 | - do not wake up every minute when timerfd is used to detect timejumps. |
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19 | - support a lot more "uncommon" compile time configurations, |
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20 | such as ev_embed enabled but ev_timer disabled. |
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21 | - the linux aio backend is no longer compiled in by default. |
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22 | - update to libecb version 0x00010008. |
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23 | |
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24 | 4.31 Fri Dec 20 21:58:29 CET 2019 |
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25 | - handle backends with minimum wait time a bit better by not |
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26 | waiting in the presence of already-expired timers |
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27 | (behaviour reported by Felipe Gasper). |
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28 | - new feature: use timerfd to detect timejumps quickly, |
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29 | can be disabled with the new EVFLAG_NOTIMERFD loop flag. |
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30 | - document EV_USE_SIGNALFD feature macro. |
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31 | |
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32 | 4.30 (EV only) |
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33 | - change non-autoconf test for __kernel_rwf_t by testing |
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34 | LINUX_VERSION_CODE, the most direct test I could find. |
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35 | - fix a bug in the io_uring backend that polled the wrong |
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36 | backend fd, causing it to not work in many cases. |
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37 | |
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38 | 4.29 (EV only) |
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39 | - add io uring autoconf and non-autoconf detection. |
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40 | - disable io_uring when some header files are too old. |
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41 | |
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42 | 4.28 (EV only) |
| 5 | - linuxaio backend resulted in random memory corruption |
43 | - linuxaio backend resulted in random memory corruption |
| 6 | when loop is forked. |
44 | when loop is forked. |
| 7 | - linuxaio backend might have tried to cancel an iocb |
45 | - linuxaio backend might have tried to cancel an iocb |
| 8 | multiple times (was unable to trigger this). |
46 | multiple times (was unable to trigger this). |
| 9 | - linuxaio backend now employs a generation counter to |
47 | - linuxaio backend now employs a generation counter to |
| 10 | avoid handlign spurious events from cancelled requests. |
48 | avoid handling spurious events from cancelled requests. |
| 11 | - io_cancel can return EINTR, deal with it. also, assume |
49 | - io_cancel can return EINTR, deal with it. also, assume |
| 12 | io_submit also returns EINTR. |
50 | io_submit also returns EINTR. |
| 13 | - fix some other minor bugs in linuxaio backend. |
51 | - fix some other minor bugs in linuxaio backend. |
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52 | - ev_tstamp type can now be overriden by defining EV_TSTAMP_T. |
| 14 | - cleanup: replace expect_true/false and noinline by their |
53 | - cleanup: replace expect_true/false and noinline by their |
| 15 | libecb counterparts. |
54 | libecb counterparts. |
| 16 | - move syscall infrastructure from ev_linuxaio.c to ev.c. |
55 | - move syscall infrastructure from ev_linuxaio.c to ev.c. |
| 17 | - prepare io_uring integration. |
56 | - prepare io_uring integration. |
| 18 | - tweak ev_floor. |
57 | - tweak ev_floor. |
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58 | - epoll, poll, win32 Sleep and other places that use millisecond |
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59 | reslution now all try to round up times. |
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60 | - solaris port backend didn't compile. |
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61 | - abstract time constants into their macros, for more flexibility. |
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62 | |
| 20 | 4.27 Thu Jun 27 22:43:44 CEST 2019 |
63 | 4.27 Thu Jun 27 22:43:44 CEST 2019 |
| 21 | - linux aio backend almost completely rewritten to work around its |
64 | - linux aio backend almost completely rewritten to work around its |
| 22 | limitations. |
65 | limitations. |
| 23 | - linux aio backend now requires linux 4.19+. |
66 | - linux aio backend now requires linux 4.19+. |
