15 Commits

Author SHA1 Message Date
Nick Mathewson
165d30e31a Fix compilation of rate-limiting code on win32. 2009-12-30 14:29:56 -05:00
Nick Mathewson
737c9cd87b Rate-limiting for bufferevents; group and individual limits are supported.
The fairness algorithms are not the best, not every bufferevent type
is supported, and some of the locking tricks here are simply absurd.
Still, this code should be a good first step.
2009-12-28 16:11:18 -05:00
Nick Mathewson
d7d1f1da09 Move responsibility for IOCP callback into bufferevent_async.
This patch from Chris Davis saves some callback depth, and adds proper
ref-counting to bufferevents when there's a deferred evbuffer callback
inflight.  It could use a couple more comments to really nail down what
its invariants are.

svn:r1543
2009-11-17 20:31:09 +00:00
Nick Mathewson
86db1c851b Commit ConnectEx code to get connect working with async bufferevents.
This is code by Chris Davis, with changes to get the unit tests failing less aggressively.

The unit tests for this code do not completely pass yet; Chris is looking into that.  If they aren't passing by the next release, I'll turn off this code.

svn:r1499
2009-11-04 05:19:26 +00:00
Nick Mathewson
2e36dbe1a6 Use EVUTIL_ASSERT() consistently instead of assert.
svn:r1464
2009-10-26 20:00:43 +00:00
Nick Mathewson
879420a711 Expose a narrow window to the IOCP code.
svn:r1459
2009-10-23 22:00:29 +00:00
Nick Mathewson
a62283a9c3 Always hold a reference to a bufferevent when calling its callbacks.
Rationale: we hold a lock on the bufferevent when its callbacks are
executing, so we need to release the lock afterwards.  But the
callback might free the bufferevent, so unless we're holding a
reference on the bufferevent, the lock might not be there for us to
release.

svn:r1347
2009-07-17 17:46:17 +00:00
Nick Mathewson
34574db0f8 Add a generic mechanism to implement timeouts in bufferevents.
Paired and asynchronous bufferevents didn't do timeouts, and filtering
bufferevents gave them funny semantics.  Now they all should all work
in a way consistent with what socket bufferevents do now: a [read/write]
timeout triggers if [reading/writing] is enabled, and if the timeout is
set, and the right amount of time passes without any data getting
[added to the input buffer/drained from the output buffer].

svn:r1314
2009-05-25 23:10:23 +00:00
Nick Mathewson
31d89f274b Add a "ctrl" mechanism to bufferevents for property access.
OpenSSL uses something like this to implement get/set access for
properties on its BIOs, so that it doesn't need to add a pair of
get/set functions to the vtable struct for every new abstract property
it provides an accessor for.

Doing this lets us make bufferevent_setfd abstract, and implement an
abstract bufferevent_getfd.

svn:r1284
2009-05-13 20:37:21 +00:00
Nick Mathewson
a8bcbfd416 Fix bufferevent_async to use lock/unlock, not unlock/unlock.
You do NOT want to know what windows does when you unlock a lock that is already unlocked.

svn:r1278
2009-05-06 02:33:37 +00:00
Nick Mathewson
fe47003d06 Make unit tests for bufferevent_async compile and _almost_ work.
Either I need to make the callbacks get deferred in a base with no events (doable), or I need to make it okay to call launch_read from inside the callback for read (tricky).

svn:r1277
2009-05-05 16:52:37 +00:00
Nick Mathewson
02801e5be5 Add a trival start of a be_async test.
svn:r1276
2009-05-05 15:36:28 +00:00
Nick Mathewson
b69d03b5a8 Add a constructor for bufferevent_async.
svn:r1274
2009-05-05 14:18:14 +00:00
Nick Mathewson
5a3eddf03f Use fewer _compat.h headers in our own code.
svn:r1268
2009-05-02 16:24:05 +00:00
Nick Mathewson
1aebcd5047 Initial core implementation of bufferevent_async.c
svn:r1263
2009-05-01 01:42:33 +00:00