17 Commits

Author SHA1 Message Date
Nick Mathewson
e3fd294a6d Spelling fixes in comments and strings.
svn:r1445
2009-10-16 13:19:57 +00:00
Nick Mathewson
709c21c48c Bufferevent support for openssl.
This code adds a new Bufferevent type that is only compiled when the
openssl library is present.  It supports using an SSL object and an
event alert mechanism, which can either be an fd or an underlying
bufferevent.

There is still more work to do: the unit tests are incomplete, and we
need to support flush and shutdown much better.  Sometimes events are
generated needlessly: this will hose performance.

There's a new encrypting proxy in sample/le-proxy.c.

This code has only been tested on OSX, and nowhere else.

svn:r1382
2009-07-28 04:03:57 +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
5232cfa357 Consistently say "eventcb" instead of "errorcb"
svn:r1316
2009-05-25 23:11:20 +00:00
Nick Mathewson
2f655f008c Add documentation for bufferevent-internal.h stuff
svn:r1315
2009-05-25 23:10:47 +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
659d54d530 Add new code to make and accept connections.
This is stuff that it's easy to get wrong (as I noticed when writing
bench_http), and that takes up a fair amount of space (see http.c).
Also, it's something that we'll eventually want to abstract to use
IOCP, where available.

svn:r1272
2009-05-05 02:59:26 +00:00
Nick Mathewson
a98a512bc1 Add a generic way for any bufferevent to make its callback deferred
svn:r1197
2009-04-17 23:12:34 +00:00
Nick Mathewson
91039e4d48 Add reference counts to bufferevents.
svn:r1189
2009-04-17 06:57:38 +00:00
Nick Mathewson
915193e7df Locking support for bufferevents.
svn:r1170
2009-04-13 03:17:19 +00:00
Nick Mathewson
1becc4c4e6 Refactor new elements of bufferevent into bufferevent_private structure
This way we don't expose more of a bufferevent than we need to.  One
motivation is to make it easier to automatically get deferred callbacks
with a bufferevent without exposing the deferred_cb structure.

svn:r1169
2009-04-13 03:08:11 +00:00
Nick Mathewson
23085c9247 Add a linked-pair abstraction to bufferevents.
The new bufferevent_pair abstraction works like a set of buferevent_sockets
connected by a socketpair, except that it doesn't require a socketpair,
and therefore doesn't need to get the kernel involved.

It's also a good way to make sure that deferred callbacks work.  It's a good
use case for deferred callbacks: before I implemented them, the recursive
relationship between the evbuffer callback and the read callback would
make the unit tests overflow the stack.

svn:r1152
2009-04-10 15:01:31 +00:00
Nick Mathewson
ea4b8724c0 checkpoint work on big bufferevent refactoring
svn:r1095
2009-02-02 19:22:13 +00:00
Nick Mathewson
b85b710cf5 Update copyright statements to reflect the facts that:
a) this is 2009
b) niels and nick have been comaintainers for a while
c) saying "all rights reserved" when you then go on to explicitly
   disclaim some rights is sheer cargo-cultism.

svn:r1065
2009-01-27 22:34:36 +00:00
Nick Mathewson
8889a77039 Replace all use of config.h with event-config.h.
svn:r1064
2009-01-27 22:30:46 +00:00
Niels Provos
682adc443b support input/output filters for bufferevents
svn:r748
2008-04-30 00:09:16 +00:00