(expiry time set to 100 seconds so we can play with it)
exit connections are now informed when pending resolves fail
we kill off the oldest busy worker when we're under attack and need to
resolve something new
svn:r356
i've eliminated the master dns process, so now the workers just
act like regular connections and are handled by the normal pollarray.
everything seems to still work. ;)
svn:r327
Or at least, directories get generated, signed, download, and checked, with
nobody seeming to crash.
In config/*, added 'signing-key' blocks to dirservers and routers.or, so
that everyone will know about the directories' signing keys.
In or/directory.c, refrained from using a dirserver's signing key when
no such key is known; added more debugging output.
In or/main.c, added debugging output and fixed a few logic errors.
In or/routers.c, added debugging output and prevented a segfault on
routers_resolve_directory. The interleaving of arrays and lists on
routerinfo_t is still messy, but at least it seems to work again.
svn:r278
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
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
