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When the TLS session was closed during path mtu discovery, the EINTR signal was captured by the retry loop, causing it to loop indefinitelly as the state of the session was TlsSessionState::SHUTDOWN ; each retry triggering another EINTR from TlsSessionImpl::waitForRawData, making gnutls_heartbeat_ping to return GNUTLS_E_INTERRUPTED on the pong wait). the guard to this loop was modified to take into account the state of the session on GNUTLS_E_ITERRUPTED. Another do/while loop was guarded by the same condition in TlsSessionImpl::send, the same countermeasures have been put in place. Change-Id: Ib2ab8975c8044d9bac0abdcace94d79b5eeb75b9 Reviewed-by: Philippe Gorley <philippe.gorley@savoirfairelinux.com>
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