f2eb106f1e
Motivation: We need to ensure we only add the OpenSslEngine to the OpenSslEngineMap when the handshake is started as otherwise we may produce a memory leak when the OpenSslEngine is created but not actually used. This can for example happen if we encounter a connection refused from the remote peer. In this case we will never remove the OpenSslEngine from the OpenSslEngineMap and so it will never be collected (as we hold a reference). This has as affect that the finalizer will never be run as well. Modifications: - Lazy add the OpenSslEngine to the OpenSslEngineMap to elimate possible leak. - Call OpenSslEngine.shutdown() when SslHandler is removed from the ChannelPipeline to free memory asap in all cases. Result: No more memory leak with OpenSslEngine if connection is refused. |
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