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| author | Eric Wong <e@80x24.org> | 2013-10-20 09:25:54 +0000 |
|---|---|---|
| committer | Eric Wong <e@80x24.org> | 2013-10-21 04:09:20 +0000 |
| commit | d3335cbaee6c47880b3bb5a372b966842edfeade (patch) | |
| tree | 8255bc8670535f34ca57e33ac05272bae51c9ace /lib/yahns/queue_epoll.rb | |
| parent | 92172ac2c4e094cb2d8f8669a1f7666501425263 (diff) | |
| download | yahns-d3335cbaee6c47880b3bb5a372b966842edfeade.tar.gz | |
Acceptors require closing the descriptor, first, and then doing a (nasty) cross-thread exception to kick the thread out of the blocking accept via Thread#run (pthread_kill SIGVTALRM). We cannot do what we're doing with epoll with acceptors because the accept socket is shared across processes. We will also NEVER be using non-blocking accept, as it's more important we fairly distribute connections between tasks when we're not shutting the server down. The queue worker threads are much easier to kill off :) We can simply inject a new QueueQuitter object as a Level-Triggering epoll watch, activate it, and let it wreak havok on all the worker threads from a single event activation. rb_thread_fd_close is convenient, but expensive with many threads, so be prepared for more systems without it. This is for Rubinius compatibility. Yes, we are actually using Level-Triggered epoll here (despite the non-shutdown pieces of our code being based around EPOLLONESHOT).
Diffstat (limited to 'lib/yahns/queue_epoll.rb')
| -rw-r--r-- | lib/yahns/queue_epoll.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/yahns/queue_epoll.rb b/lib/yahns/queue_epoll.rb index 7df1cc0..fab1090 100644 --- a/lib/yahns/queue_epoll.rb +++ b/lib/yahns/queue_epoll.rb @@ -6,6 +6,7 @@ class Yahns::Queue < SleepyPenguin::Epoll::IO # :nodoc: attr_accessor :fdmap # Yahns::Fdmap # public + QEV_QUIT = Epoll::IN QEV_RD = Epoll::IN | Epoll::ONESHOT QEV_WR = Epoll::OUT | Epoll::ONESHOT QEV_RDWR = QEV_RD | QEV_WR |