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| author | Roger Dingledine <arma@torproject.org> | 2013-09-04 19:43:46 -0400 |
|---|---|---|
| committer | Roger Dingledine <arma@torproject.org> | 2013-09-04 23:21:46 -0400 |
| commit | c6f1668db3010de6aed22bd87850aa846911d43b (patch) | |
| tree | b7d4d37cb22cec0da37fd654863407e4205d8348 /src/or/onion.c | |
| parent | 71e0ca02b57f7945d922a8708a2c97815a9350ad (diff) | |
| download | tor-c6f1668db3010de6aed22bd87850aa846911d43b.tar.gz tor-c6f1668db3010de6aed22bd87850aa846911d43b.zip | |
nickm wants us to prioritize tap in a currently-rare edge case
Diffstat (limited to 'src/or/onion.c')
| -rw-r--r-- | src/or/onion.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/or/onion.c b/src/or/onion.c index cabd05559b..41fe7b6eea 100644 --- a/src/or/onion.c +++ b/src/or/onion.c @@ -217,8 +217,21 @@ decide_next_handshake_type(void) if (!ol_entries[ONION_HANDSHAKE_TYPE_NTOR]) return ONION_HANDSHAKE_TYPE_TAP; /* no ntors? try tap */ - if (!ol_entries[ONION_HANDSHAKE_TYPE_TAP]) + if (!ol_entries[ONION_HANDSHAKE_TYPE_TAP]) { + + /* Nick wants us to prioritize new tap requests when there aren't + * any in the queue and we've processed k ntor cells since the last + * tap cell. This strategy is maybe a good idea, since it starves tap + * less in the case where tap is rare, or maybe a poor idea, since it + * makes the new tap cell unfairly jump in front of ntor cells that + * got here first. In any case this edge case will only become relevant + * once tap is rare. We should reevaluate whether we like this decision + * once tap gets more rare. */ + if (ol_entries[ONION_HANDSHAKE_TYPE_NTOR]) + ++recently_chosen_ntors; + return ONION_HANDSHAKE_TYPE_NTOR; /* no taps? try ntor */ + } /* They both have something queued. Pick ntor if we haven't done that * too much lately. */ |