Handle EPOLLHUP to avoid chaos/runaways when using certain file descriptors.

A concrete example is pipe file descriptors: they generate EPOLLHUP instead of a EPOLLIN (then 0 bytes read). The loop will run wild if this event is not handled.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/pure/selectors.nim b/lib/pure/selectors.nim
index 29f6cd3ab..bd2564937 100644
--- a/lib/pure/selectors.nim
+++ b/lib/pure/selectors.nim
@@ -156,7 +156,7 @@ elif defined(linux):
       let fd = s.events[i].data.fd.SocketHandle
     
       var evSet: set[Event] = {}
-      if (s.events[i].events and EPOLLERR) != 0: evSet = evSet + {EvError}
+      if (s.events[i].events and EPOLLERR) != 0 or (s.events[i].events and EPOLLHUP) != 0: evSet = evSet + {EvError}
       if (s.events[i].events and EPOLLIN) != 0: evSet = evSet + {EvRead}
       if (s.events[i].events and EPOLLOUT) != 0: evSet = evSet + {EvWrite}
       let selectorKey = s.fds[fd]