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* Remove the current poller from the watch list to avoid immediately kicking ↵Gravatar Craig Tiller2015-03-11
| | | | it when notifying of an event
* Check POLLHUP, POLLERR as requiredGravatar Craig Tiller2015-02-20
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* Add missing new-lines at end of fileGravatar Craig Tiller2015-02-18
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* Update copyright to 2015Gravatar Craig Tiller2015-02-18
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* Epoll based multipollerGravatar David Klempner2015-02-10
| | | | | | | | | | | | | | This is a multipoller based on epoll rather than poll. Note that this implementation is aimed at correctness rather than performance, although it should immediately have better scalability to large numbers of FDs, both due to epoll's O(1) sized API and due to not needing to wake up polling threads to do interest set changes. One notable difference here is that we directly attach a wakeup fd rather than using the freelisting kick mechanism that the poll() based implementations use, because modifying the epoll set to use a different kick fd each time isn't free.
* Reduce contention on lockGravatar Craig Tiller2015-02-09
| | | | Change the fd watcher from being O(active_pollers) to O(1), reducing time spent under the fd->watcher_mu lock, and ultimately scaling us much better.
* Fix some TSAN reported errorsGravatar Craig Tiller2015-01-29
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* Factor out the pollset kicking mechanism and eliminate shardingGravatar David Klempner2015-01-16
| | | | | | | | | This change pulls out a separate pollset_kick module, which currently uses a freelist of pipes dynamically assigned to pollsets when they enter polling rather than the previous racy sharding mechanism. We ultimately may wish to eliminate the dynamic assignment for multipoll sets, but this should be sufficient for the moment.
* Don't log on EINTR.Gravatar ctiller2015-01-09
| | | | | | | Change on 2015/01/07 by ctiller <ctiller@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=83469190
* Remove libevent.Gravatar ctiller2015-01-09
| | | | | | | | | | | | | | | | | | | | | | | Fixed any exposed bugs across the stack. Add a poll() based implementation. Heavily leverages pollset infrastructure to allow small polls to be the norm. Exposes a mechanism to plug in epoll/kqueue for platforms where we have them. Simplify iomgr callbacks to return one bit of success or failure (instead of the multi valued result that was mostly unused previously). This will ease the burden on new implementations, and the previous system provided no real value anyway. Removed timeouts on endpoint read/write routines. This simplifies porting burden by providing a more orthogonal interface, and the functionality can always be replicated when desired by using an alarm combined with endpoint_shutdown. I'm fairly certain we ended up with this interface because it was convenient to do from libevent. Things that need attention still: - adding an fd to a pollset is O(n^2) - but this is probably ok given that we'll not use this for multipolling once platform specific implementations are added. - we rely on the backup poller too often - especially for SSL handshakes and for client connection establishment we should have a better mechanism ([] [] - Linux needs to use epoll for multiple fds, FreeBSD variants (including Darwin) need to use kqueue. ([] [] - Linux needs to use eventfd for poll kicking. ([] Change on 2015/01/07 by ctiller <ctiller@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=83461069
* Add a --forever flag, to continuously run tests as things change.Gravatar ctiller2015-01-09
| | | | | | | Change on 2015/01/07 by ctiller <ctiller@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=83451760
* Don't log on EINTR.Gravatar ctiller2015-01-08
| | | | | | | Change on 2015/01/07 by ctiller <ctiller@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=83469190
* Remove libevent.Gravatar ctiller2015-01-08
Fixed any exposed bugs across the stack. Add a poll() based implementation. Heavily leverages pollset infrastructure to allow small polls to be the norm. Exposes a mechanism to plug in epoll/kqueue for platforms where we have them. Simplify iomgr callbacks to return one bit of success or failure (instead of the multi valued result that was mostly unused previously). This will ease the burden on new implementations, and the previous system provided no real value anyway. Removed timeouts on endpoint read/write routines. This simplifies porting burden by providing a more orthogonal interface, and the functionality can always be replicated when desired by using an alarm combined with endpoint_shutdown. I'm fairly certain we ended up with this interface because it was convenient to do from libevent. Things that need attention still: - adding an fd to a pollset is O(n^2) - but this is probably ok given that we'll not use this for multipolling once platform specific implementations are added. - we rely on the backup poller too often - especially for SSL handshakes and for client connection establishment we should have a better mechanism ([] [] - Linux needs to use epoll for multiple fds, FreeBSD variants (including Darwin) need to use kqueue. ([] [] - Linux needs to use eventfd for poll kicking. ([] Change on 2015/01/07 by ctiller <ctiller@google.com> ------------- Created by MOE: http://code.google.com/p/moe-java MOE_MIGRATED_REVID=83461069
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