avoid EPOLL_CTL_DEL calls on rack.hijack

We will support "un-hijacking", so the repeated ep_insert/ep_remove
sequences in the kernel will get expensive and complicated for our
user-land code, too.

1 files changed, 0 insertions, 11 deletions

diff --git a/lib/yahns/queue_epoll.rb b/lib/yahns/queue_epoll.rb
index 4a10ce0..da90a95 100644
--- a/lib/yahns/queue_epoll.rb
+++ b/lib/yahns/queue_epoll.rb
@@ -32,17 +32,6 @@ class Yahns::Queue < SleepyPenguin::Epoll::IO # :nodoc:
     Thread.current[:yahns_fdmap] = @fdmap
   end
 
-  # use only before hijacking, once hijacked, io may be unusable to us
-  # It is not safe to call this unless it is an unarmed EPOLLONESHOT
-  # object.
-  def queue_del(io)
-    # order does not really matter here, however Epoll::CTL_DEL
-    # will free up ~200 bytes of unswappable kernel memory,
-    # so we call it first
-    epoll_ctl(Epoll::CTL_DEL, io, 0)
-    @fdmap.forget(io)
-  end
-
   # returns an array of infinitely running threads
   def worker_thread(logger, max_events)
     Thread.new do