Apparently epoll() does not need to check for EPOLLHUP.

2 files changed, 7 insertions, 2 deletions

diff --git a/main.py b/main.py
index 0a01303..52a0fef 100644
--- a/main.py
+++ b/main.py
@@ -38,6 +38,9 @@ import select
 import socket
 import time
 
+# Initialize logging before we import polling.
+logging.basicConfig(level=logging.INFO)
+
 # Local imports (keep in alphabetic order).
 import polling
 
diff --git a/polling.py b/polling.py
index 28cc03c..a85d8af 100644
--- a/polling.py
+++ b/polling.py
@@ -147,11 +147,11 @@ class EPollMixin(PollsterBase):
             timeout = -1  # epoll.poll() uses -1 to mean "wait forever".
         events = []
         for fd, eventmask in self._epoll.poll(timeout):
-            if eventmask & (select.EPOLLIN | select.EPOLLHUP):
+            if eventmask & select.EPOLLIN:
                 if fd in self.readers:
                     callback, args = self.readers[fd]
                     events.append((fd, eventmask, callback, args))
-            if eventmask & (select.EPOLLOUT | select.EPOLLHUP):
+            if eventmask & select.EPOLLOUT:
                 if fd in self.writers:
                     callback, args = self.writers[fd]
                     events.append((fd, eventmask, callback, args))
@@ -266,6 +266,8 @@ elif hasattr(select, 'poll'):  # Newer UNIX
 else:  # All UNIX; Windows (for sockets only)
     poll_base = SelectMixin
 
+logging.info('Using Pollster base class %r', poll_base.__name__)
+
 
 class Pollster(EventLoopMixin, poll_base):
     pass