New submission from Antoine Pitrou <pit...@free.fr>: In light of the recv() and recv_into() implementation change (issue3890), I think we should enable SSL_MODE_AUTO_RETRY for SSL sockets. It prevents blocking read() calls from getting SSL_ERROR_WANT_READ at all. (previously, we would loop manually in recv() and recv_into(); letting the C OpenSSL runtime do it for us is certainly more efficient)
See description in http://www.openssl.org/docs/ssl/SSL_CTX_set_mode.html: « SSL_MODE_AUTO_RETRY Never bother the application with retries if the transport is blocking. If a renegotiation take place during normal operation, a SSL_read(3) or SSL_write(3) would return with -1 and indicate the need to retry with SSL_ERROR_WANT_READ. In a non-blocking environment applications must be prepared to handle incomplete read/write operations. In a blocking environment, applications are not always prepared to deal with read/write operations returning without success report. The flag SSL_MODE_AUTO_RETRY will cause read/write operations to only return after the handshake and successful completion. » ---------- components: Library (Lib) messages: 101640 nosy: giampaolo.rodola, janssen, pitrou priority: normal severity: normal status: open title: enabling SSL_ERROR_WANT_READ on SSL sockets type: behavior versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue8222> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
