lib/libevent: prevent double close

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/libevent.nit b/lib/libevent.nit
index 8fdc6f1..db3795d 100644 (file)
--- a/lib/libevent.nit
+++ b/lib/libevent.nit
@@ -129,6 +129,7 @@ class Connection
        # Close this connection if possible, otherwise mark it to be closed later
        redef fun close
        do
+               if closed then return
                var success = native_buffer_event.destroy
                close_requested = true
                closed = success