This is a squashed version of my former desired_nodes_behavior branch
that we used to specify the intended results wrt bug 1090.

This is a tweak to the bug2917 fix.  Basically, if we want to simulate
a signal arriving in the controller, we shouldn't have to pretend that
we're Libevent, or depend on how Tor sets up its Libevent callbacks.

The last entry of the *Maxima values in the state file was inflated by a
factor of NUM_SECS_ROLLING_MEASURE (currently 10). This could lead to
a wrong maximum value propagating through the state file history.

Fixes bug 2979, reported by tagnaq.

Under heavy load, this could result in an assertion failure.  Fix for
bug 2933; bugfix on 0.2.0.10-alpha.

Sebastian Hahn authored 13 years ago and Nick Mathewson committed 13 years ago

When reading the bw history from the state file, we'd add the 900-second
value as traffic that occured during one second. Fix that by adding the
average value to each second.

This bug was present since 0.2.0.5-alpha, but was hidden until
0.2.23-alpha when we started using the saved values.

Sebastian Hahn authored 13 years ago and Nick Mathewson committed 13 years ago

This fixes the first part of bug 2704. It should occur only rarely when
no bw maxima are known. Bugfix on 0.2.2.23-alpha. Fixes bug 2704.

Fixes bug 2948.

While doing so, get rid of the now unnecessary function
control_signal_act().

Fixes bug 2917, reported by Robert Ransom. Bugfix on commit
9b4aa8d2. This patch is loosely based on
a patch by Robert (Changelog entry).

We forgot to put it into 0.2.2.24-alpha.

- Document the structure and variables.
- Make circuits_for_buffer_stats into a static variable.
- Don't die horribly if interval_length is 0.
- Remove the unused local_circ_id field.
- Reorder the fields of circ_buffer_stats_t for cleaner alignment layout.

Conflicts:
	src/or/or.h

Instead of answering GETINFO requests about our geoip usage only after
running for 24 hours, this patch makes us answer GETINFO requests
immediately.  We still round and quantize as before.

Implements bug2711.

Also, refactor the heck out of the bridge usage formatting code.  No
longer should we need to do a generate-parse-and-regenerate cycle to
get the controller string, and that lets us simplify the code a lot.