Re: [RESEND PATCH v2 1/1] rpc: Add the {repoll,retry} logic in virNetClientSetTLSSession

From: Hyman Huang <yong.huang(a)smartx.com&gt; As advised by the GNU TLS, the caller should attempt again if the gnutls_record_{recv,send} return EAGAIN or EINTR; check the following link to view the details: https://www.gnutls.org/manual/html_node/Data-transfer-and-termination.html virNetClientSetTLSSession failed to handle EINTR/EGAIN, though EGAIN seems like it ought to be unlikely given that the caller waited for G_IO_IN. Add the {repoll, retry} logic to handle EINTR/EGAIN that may happen theoretically. This may reduce the likelihood that the upper application receives the following error message utmostly when it calls the virConnectOpenAuth API: Unable to read TLS confirmation: Resource temporarily unavailable Note that in order to fully avoid the mentioned problem, the upper application should retry virConnectOpenAuth.