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improve code comments, based on comments from nick
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@ -4605,7 +4605,7 @@ entries_retry_helper(or_options_t *options, int act)
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if (ri->is_running)
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any_running = 1; /* some entry is both known and running */
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else if (act) {
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/* Mark-for-close all TLS connections to this node, since
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/* Mark all current connections to this OR as unhealthy, since
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* otherwise there could be one that started 30 seconds
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* ago, and in 30 seconds it will time out, causing us to mark
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* the node down and undermine the retry attempt. We mark even
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@ -4613,7 +4613,7 @@ entries_retry_helper(or_options_t *options, int act)
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* we'll want to attach circuits to fresh conns. */
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connection_or_set_bad_connections(ri->cache_info.identity_digest, 1);
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/* mark it for retry */
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/* mark this entry node for retry */
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router_set_status(ri->cache_info.identity_digest, 1);
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e->can_retry = 1;
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e->bad_since = 0;
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@ -959,9 +959,13 @@ circuit_build_failed(origin_circuit_t *circ)
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if (circ->_base.n_conn) {
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or_connection_t *n_conn = circ->_base.n_conn;
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if (n_conn->is_bad_for_new_circs) {
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/* no need to blow away circuits/streams/etc. Also, don't mark this
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* router as newly down, since maybe this was just an old circuit
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* attempt that's finally timing out now. */
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/* We only want to blame this router when a fresh healthy
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* connection fails. So don't mark this router as newly failed,
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* since maybe this was just an old circuit attempt that's
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* finally timing out now. Also, there's no need to blow away
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* circuits/streams/etc, since the failure of an unhealthy conn
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* doesn't tell us much about whether a healthy conn would
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* succeed. */
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already_marked = 1;
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}
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log_info(LD_OR,
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@ -606,8 +606,21 @@ connection_or_get_for_extend(const char *digest,
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#define TIME_BEFORE_OR_CONN_IS_TOO_OLD (60*60*24*7)
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/** Given the head of the linked list for all the or_connections with a given
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* identity, set elements of that list as is_bad_for_new_circs() as
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* appropriate. Helper for connection_or_set_bad_connections().
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* identity, set elements of that list as is_bad_for_new_circs as
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* appropriate. Helper for connection_or_set_bad_connections().
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*
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* Specifically, we set the is_bad_for_new_circs flag on:
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* - all connections if <b>force</b> is true.
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* - all connections that are too old.
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* - all open non-canonical connections for which a canonical connection
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* exists to the same router.
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* - all open canonical connections for which a 'better' canonical
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* connection exists to the same router.
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* - all open non-canonical connections for which a 'better' non-canonical
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* connection exists to the same router at the same address.
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*
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* See connection_or_is_better() for our idea of what makes one OR connection
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* better than another.
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*/
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static void
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connection_or_group_set_badness(or_connection_t *head, int force)
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@ -721,18 +734,8 @@ connection_or_group_set_badness(or_connection_t *head, int force)
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/** Go through all the OR connections (or if <b>digest</b> is non-NULL, just
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* the OR connections with that digest), and set the is_bad_for_new_circs
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* flag on:
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* - all connections if <b>force</b> is true.
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* - all connections that are too old.
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* - all open non-canonical connections for which a canonical connection
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* exists to the same router.
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* - all open canonical connections for which a 'better' canonical
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* connection exists to the same router.
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* - all open non-canonical connections for which a 'better' non-canonical
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* connection exists to the same router at the same address.
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*
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* See connection_or_is_better() for our idea of what makes one OR connection
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* better than another.
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* flag based on the rules in connection_or_group_set_badness() (or just
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* always set it if <b>force</b> is true).
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*/
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void
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connection_or_set_bad_connections(const char *digest, int force)
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