Allow more connections open at once


svn:r160

svn:r159

serious performance increase over non-caching


svn:r158

svn:r157

svn:r156

svn:r155

(they wouldn't have before)

alternate code which bypasses the dns farm, so we can compare speed


svn:r154

performance is better, but not by much. not sure why yet.


svn:r153

on startup, it forks off a master dns handler, which forks off dns
slaves (like the apache model). slaves as spawned as load increases,
and then reused. excess slaves are not ever killed, currently.

implemented topics. each topic has a receive window in each direction
at each edge of the circuit, and sends sendme's at the data level, as
per before. each circuit also has receive windows in each direction at
each hop; an edge sends a circuit-level sendme as soon as enough data
cells have arrived (regardless of whether the data cells were flushed
to the exit conns). removed the 'connected' cell type, since it's now
a topic command within data cells.

at the edge of the circuit, there can be multiple connections associated
with a single circuit. you find them via the linked list conn->next_topic.

currently each new ap connection starts its own circuit, so we ought
to see comparable performance to what we had before. but that's only
because i haven't written the code to reattach to old circuits. please
try to break it as-is, and then i'll make it reuse the same circuit and
we'll try to break that.


svn:r152

taken from openbsd


svn:r151

when we had lots of new onions coming in, we were using 40% of
our time searching through the tracked_onions linked list.


svn:r150

svn:r149

(amazing the odd behavior you get to test when you have a flaky modem
connection)


svn:r148

svn:r147

we're closer to an OS X port
 CVS: ----------------------------------------------------------------------


svn:r146

this was a major faq, because it would fail with an error only on
the *server* side when the client-side time was wrong. the client would
simply not work.


svn:r145

svn:r144

svn:r143

we also queue data cells destined for a circuit that is
pending, and process them once the circuit opens

destroys reach into the queue and remove the pending onion,
along with its collected data cells


svn:r142

svn:r141

svn:r140

svn:r139

svn:r138

first cut, probably needs more playing with


svn:r137

reformat parts of onion.c


svn:r136

If you weren't connected to a given router, and you made a directory
request to it simultaneously with a new web query that caused you to
want to connect to that OR... it would think you're already connected.


svn:r135

don't list non-open ORs in the directory


svn:r134

svn:r133

svn:r132

Add convenience functions to wrap create and init for symmetric ciphers; clean up error handling in onion.c


svn:r131

svn:r130

svn:r129

svn:r128

svn:r127

svn:r126

now tor can be run safely inside nat'ed areas that kill idle
connections; and the proxy can handle when you suspend your laptop
and then emerge hours later from a new domain.


svn:r125

(text that it spits out immediately upon connect)


svn:r124

svn:r123

svn:r122

svn:r121