poll-but-sometimes-select mess.  This will let us use faster async cores
(like epoll, kpoll, and /dev/poll), and hopefully work better on Windows
too.

There are some fairly nasty changes to main.c here; this will almost
certainly break something.  But hey, that's what alphas are for.


svn:r3341

svn:r3340

high capacity nodes. When building circuits, choose appropriate nodes.

New config option LongLivedPorts to indicate application streams
that will want high uptime circuits.

When attaching a stream to a circuit, pay attention to its requirements.

This means that every single node in an intro rend circuit, not just
the last one, will have a minimum uptime.

Boost the min uptime from an hour to 24 hours.


svn:r3339

themselves


svn:r3338

clock, don't make his published uptime be a year.


svn:r3337

server. only give up hope on network reachability when no other servers
are reachable either.


svn:r3335

nick, do you think this does it? if so, we should maybe backport too.


svn:r3334

now we reset uptime when a dir fetch entirely fails. this
hopefully has something to do with stability of being on the
network.


svn:r3333

svn:r3331

refer in logs to the destination address, not the address of the
application connection.


svn:r3330

svn:r3329

svn:r3328

tried they were all unreachable, assume we are not connected to
the network.

when an application request comes in during this state, be
optimistic and assume we just reconnected. fetch a new directory
and if it works, begin making circuits.


svn:r3327

svn:r3326

svn:r3325

needs to be 0.


svn:r3324

svn:r3322

now by default they refuse router descriptors that have non-IP
or private-IP addresses.


svn:r3321

Fix a fun bug: do not rewrite a cached directory back to the cache; otherwise we will think it is recent and not fetch a newer one.


svn:r3319

svn:r3318

svn:r3317

svn:r3316

people should try it again and let us know.


svn:r3314

Add proposal to control spec for a simple way to bind IP addresses to hostnames. Example: "Please make all requests for 10.200.0.1 go to foobarbaz.onion".  This feature would be needed for any attempt to write a torified DNS proxy.  Needs more thought and more comments.


svn:r3313

svn:r3311

svn:r3310

svn:r3309

svn:r3308

svn:r3307

Stop reversing and re-reversing config lines: keep them in order all the time.  Removes needless confusion and fixes bug #50.


svn:r3305

svn:r3304

svn:r3302

Remove broken and undocumented wart where multiple CSV config lines are appended rather than replaced.  Resolves bug #49


svn:r3301

svn:r3300

svn:r3299

svn:r3298

svn:r3297

svn:r3296

svn:r3295

svn:r3293