1 #include <sys/poll.h>
17  * simply calls back into this code when poll()/etc. indicates it is ready.
130     conn->ssl_bio = out;  in new_conn()
135  * Non-blocking transmission.
137  * Returns -1 on error. Returns -2 if the function would block (corresponds to
144     conn->tx_need_rx = 0;  in tx()
146     l = BIO_write(conn->ssl_bio, buf, buf_len);  in tx()
148         if (BIO_should_retry(conn->ssl_bio)) {  in tx()
149             conn->tx_need_rx = BIO_should_read(conn->ssl_bio);  in tx()
150             return -2;  in tx()
152             return -1;  in tx()
160  * Non-blocking reception.
162  * Returns -1 on error. Returns -2 if the function would block (corresponds to
169     conn->rx_need_tx = 0;  in rx()
171     l = BIO_read(conn->ssl_bio, buf, buf_len);  in rx()
173         if (BIO_should_retry(conn->ssl_bio)) {  in rx()
174             conn->rx_need_tx = BIO_should_write(conn->ssl_bio);  in rx()
175             return -2;  in rx()
177             return -1;  in rx()
185  * The application wants to know a fd it can poll on to determine when the
193     if (!BIO_get_rpoll_descriptor(conn->ssl_bio, &d))  in get_conn_fd()
194         return -1;  in get_conn_fd()
198     return BIO_get_fd(conn->ssl_bio, NULL);  in get_conn_fd()
218     return (SSL_net_read_desired(conn->ssl) ? POLLIN : 0)  in get_conn_pending_tx()
219            | (SSL_net_write_desired(conn->ssl) ? POLLOUT : 0)  in get_conn_pending_tx()
222     return (conn->tx_need_rx ? POLLIN : 0) | POLLOUT | POLLERR;  in get_conn_pending_tx()
231     return (conn->rx_need_tx ? POLLOUT : 0) | POLLIN | POLLERR;  in get_conn_pending_rx()
241     BIO_free_all(conn->ssl_bio);  in teardown()
265     int timeout = 2000 /* ms */;  in main()  local
295             tx_len -= l;  in main()
296         } else if (l == -1) {  in main()
298         } else if (l == -2) {  in main()
302             if (poll(&pfd, 1, timeout) == 0) {  in main()
303                 fprintf(stderr, "tx timeout\n");  in main()
314         } else if (l == -1) {  in main()
316         } else if (l == -2) {  in main()
320             if (poll(&pfd, 1, timeout) == 0) {  in main()
321                 fprintf(stderr, "rx timeout\n");  in main()