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authorcheatfate <ka@hardcore.kiev.ua>2016-06-14 17:22:34 +0300
committercheatfate <ka@hardcore.kiev.ua>2016-06-14 17:22:34 +0300
commitefb4d974678aec8ed55e4001358c97243cc6cbab (patch)
treee557b4f6e74db494f4ef1e5c702ea0d2500c2c9b
parent5e8646583decc45f820f4d3a1f326d23d9396d9d (diff)
downloadNim-efb4d974678aec8ed55e4001358c97243cc6cbab.tar.gz
Resolve #4334
-rw-r--r--lib/pure/selectors.nim11
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/pure/selectors.nim b/lib/pure/selectors.nim
index 89e92c133..098b78c95 100644
--- a/lib/pure/selectors.nim
+++ b/lib/pure/selectors.nim
@@ -132,11 +132,12 @@ elif defined(linux):
         s.fds[fd].events = events
 
   proc unregister*(s: var Selector, fd: SocketHandle) =
-    if epoll_ctl(s.epollFD, EPOLL_CTL_DEL, fd, nil) != 0:
-      let err = osLastError()
-      if err.cint notin {ENOENT, EBADF}:
-        # TODO: Why do we sometimes get an EBADF? Is this normal?
-        raiseOSError(err)
+    if s.fds[fd].events != {}:
+      if epoll_ctl(s.epollFD, EPOLL_CTL_DEL, fd, nil) != 0:
+        let err = osLastError()
+        if err.cint notin {ENOENT, EBADF}:
+          # TODO: Why do we sometimes get an EBADF? Is this normal?
+          raiseOSError(err)
     s.fds.del(fd)
 
   proc close*(s: var Selector) =