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48 Commits

Author SHA1 Message Date
Nick Mathewson
47854a802a Expose our cached gettimeofday value with a new interface 
I've got a two use case that wants this for a fairly sensible purpose:
one external and on internal.
 2009-12-28 16:11:18 -05:00
Nick Mathewson
07e9e9b4b1 Parenthesize macro arguments more aggressively 2009-11-20 16:50:55 -05:00
Nick Mathewson
f32b57505e Add a warning about the use of event_initialized. 2009-11-20 16:38:01 -05:00
Nick Mathewson
ab96b5f3f5 Add an option to disable the timeval cache. 
svn:r1518
 2009-11-09 18:30:33 +00:00
Nick Mathewson
693c24ef9d Implement queued timeouts for case where many timeouts are the same. 
Libevent's current timeout code is relatively optimized for the
randomly scattered timeout case, where events are added with their
timeouts in no particular order.  We add and remove timeouts with
O(lg n) behavior.

Frequently, however, an application will want to have many timeouts
of the same value.  For example, we might have 1000 bufferevents,
each with a 2 second timeout on reading or writing.  If we knew this
were always the case, we could just put timeouts in a queue and get
O(1) add and remove behavior.  Of course, a queue would give O(n)
performance for a scattered timeout pattern, so we don't want to
just switch the implementation.

This patch gives the user the ability to explicitly tag certain
timeout values as being "very common".  These timeout values have a
cookie encoded in the high bits of their tv_usec field to indicate
which queue they belong on.  The queues themselves are each
triggered by an entry in the minheap.

See the regress_main.c code for an example use.

svn:r1517
 2009-11-09 17:16:30 +00:00
Nick Mathewson
e9ee1057e6 Give event_assign a return value, and make it less inclined to exit(). 
We also refactor event_assign so that it is the core function, and
event_set() is only the wrapper.

svn:r1469
 2009-10-27 04:25:45 +00:00
Nick Mathewson
a8267663de API to replace all calls to exit() with a user-supplied fatal-error handler. 
Also, add unit tests for logging.

svn:r1462
 2009-10-26 19:59:51 +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
b73ad7bc45 Treat the bitwise OR of two enum values as an int. 
This makes our interfaces usable from C++, which doesn't believe
you can say    "bufferevent_socket_nase(base, -1,
BEV_OPT_CLOSE_ON_FREE|BEV_OPT_DEFER_CALLBACKS)" but which instead
would demand "static_cast<bufferevent_options>(BEV_OPT_CLOSE_ON_FREE|
BEV_OPT_DEFER_CALLBACKS))" for the last	argument.

Diagnosis and patch from Chris Davis.

svn:r1456
 2009-10-21 18:48:22 +00:00
Nick Mathewson
d5b640fc16 Apply Ka-Hing Cheung's event_base_got_[break|exit] patch, with locking and whitespace fixes. 
svn:r1438
 2009-10-01 15:29:08 +00:00
Nick Mathewson
d3bef1a1e3 Finish implementing new convention that whenever an optional function is declared, a corresponding macro is defined. 
svn:r1361
 2009-07-17 20:32:25 +00:00
Nick Mathewson
eb97bb76e1 Make the headers compile happily with pedantic C compilers. 
Original message from SF patch 2797966:

    While commas at the end of enumerator lists are valid in c99, they
    are not valid +in c89 nor in c++. When using gcc/g++ with the
    -pedantic flag, users will +receive a warning (gcc) or an
    error(g++) when including the event2/event.h and
    +event2/bufferevent.h. The errors look something like

    event2/event.h:159: error: comma at end of enumerator list

Patch from Akita Noek on Sourceforge.

svn:r1321
 2009-05-28 15:58:28 +00:00
Nick Mathewson
0b4ab12251 Spell-check the the headers 
svn:r1320
 2009-05-28 15:47:15 +00:00
Nick Mathewson
b4886ec80d Trim 22 bytes from struct event on 32 bit platforms, more on 64-bit platforms. 
svn:r1292
 2009-05-15 18:44:44 +00:00
Nick Mathewson
0fd70978c8 Add an event_get_base() function to remove one more reason to include event_struct.h 
svn:r1271
 2009-05-05 01:09:03 +00:00
Nick Mathewson
d5ca076379 Move event_set() and friends to event2/event_compat.h. 
These functions are deprecated in favor of event_assign().

svn:r1267
 2009-05-02 16:23:29 +00:00
Nick Mathewson
1959414120 Clarify semantics on event_pending() 
svn:r1249
 2009-04-29 20:48:21 +00:00
Nick Mathewson
11ff74cf64 Add a flag to disable checking the EVENT_* environment variables. 
svn:r1220
 2009-04-22 19:41:23 +00:00
Nick Mathewson
ea8cc76cf8 Fix the documentation of event_pending. 
svn:r1215
 2009-04-21 18:47:23 +00:00
Niels Provos
f00f0c2533 make doxygen happier 
svn:r1199
 2009-04-18 04:34:45 +00:00
Nick Mathewson
d047b323bd Increment version to 2.0.1-alpha, and add a numeric version facility 
svn:r1193
 2009-04-17 17:22:32 +00:00
Nick Mathewson
7fa8451d7e Add a configure flag to hardcode all of our mm functions. 
svn:r1186
 2009-04-17 06:56:57 +00:00
Nick Mathewson
ec35eb5520 Make threading functions global, like the mm_ functions. Use the libevent_pthread.la library in regress_pthread. 
svn:r1121
 2009-02-12 22:19:54 +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
9993137cbb Remove all trailing whitespace in all the source files. 
svn:r1063
 2009-01-27 21:10:31 +00:00
Nick Mathewson
bdbd5e0e2f For every deprecated function, explain why it is deprecated and what you should call instead. 
svn:r1052
 2009-01-26 17:09:37 +00:00
Nick Mathewson
f20902a290 Remove evperiodic_assign and its related parts: its functionality is subsumed by EV_PERSIST timeouts. 
svn:r1040
 2009-01-22 17:56:15 +00:00
Niels Provos
d776f8462b deprecate the usage of signal_{add,del,set} and name it evsignal_{add,del,set} instead; move the old definitions to compat 
svn:r973
 2008-12-23 22:23:37 +00:00
Niels Provos
480d8142b8 do not define a variable in a header file; it will lead to duplicate symbols when linking 
svn:r844
 2008-06-01 01:19:08 +00:00
Niels Provos
f9707a01e5 we need to declare the enum first before it can be used; c++ compilation errors 
svn:r843
 2008-05-31 18:57:21 +00:00
Nick Mathewson
05965921ab Add new functions to access backends by their features and to query the features of a backend. 
svn:r842
 2008-05-31 14:37:31 +00:00
Nick Mathewson
39400e68b6 Patch from Valery Kholodkov: support for edge-triggered events with epoll and kqueue. Changed from original patch: made test into a regression test, with explicit success/failure for edge-triggered and non-edge-triggered cases. Closes SF request 1968284. 
svn:r840
 2008-05-30 16:56:34 +00:00
Niels Provos
8b66f1bd4d constify struct timeval * 
svn:r836
 2008-05-17 02:14:17 +00:00
Nick Mathewson
a68de2525d r19749@catbus: nickm | 2008-05-14 23:48:44 -0400 
New function to dump inserted and active events.  Also do not recv() on an int array.


svn:r829
 2008-05-15 03:49:03 +00:00
Nick Mathewson
6bf1ca780c r19675@catbus: nickm | 2008-05-11 20:39:39 -0400 
Stop pretending that u_char and u_short are standard types that win32 is dumb not to have.  In fact, u_char can really just be spelled out, and u_short was usually just a bad way of saying ev_uint16_t.


svn:r808
 2008-05-12 00:40:04 +00:00
Nick Mathewson
8acb80b4f9 r15551@tombo: nickm | 2008-05-08 14:49:20 -0400 
Use _get_ convention for new accessor functions.  (These are all new ones as of 2.0, I believe).


svn:r799
 2008-05-08 22:51:39 +00:00
Niels Provos
85ed713343 deprecate timeout_* event functions by moving them to event_compat.h 
svn:r791
 2008-05-08 07:00:16 +00:00
Niels Provos
3f56e364b7 event_base_new_with_config() and related methods 
svn:r789
 2008-05-08 05:56:20 +00:00
Niels Provos
3b2022ef3a provide an api for retrieving the supported event mechanisms 
svn:r788
 2008-05-08 05:33:15 +00:00
Nick Mathewson
957e9fd829 r19607@catbus: nickm | 2008-05-05 13:49:44 -0400 
Hack to make sure that there is always a working fast EVENT_FD()


svn:r777
 2008-05-05 17:49:52 +00:00
Nick Mathewson
bc6da5ea79 r19600@catbus: nickm | 2008-05-05 11:34:06 -0400 
Move EV_* flags into event.h; they are a necessary part of the public API.


svn:r774
 2008-05-05 15:45:39 +00:00
Nick Mathewson
d0c3644e63 r19599@catbus: nickm | 2008-05-05 11:26:18 -0400 
Turn event_initialized() and friends into a function; add function equivalents for EVENT_FD and EVENT_SIGNAL.


svn:r773
 2008-05-05 15:45:30 +00:00
Niels Provos
181007b9cf make event_assign void; it cannot return an error 
svn:r763
 2008-05-03 22:14:44 +00:00
Niels Provos
1d30750b1d support for periodic timeouts 
svn:r762
 2008-05-03 22:10:09 +00:00
Nick Mathewson
5fbc7f0aee r15439@tombo: nickm | 2008-05-02 12:28:08 -0400 
use event_assign internall; switch uses of event_set to use event_assign instead.


svn:r755
 2008-05-02 16:28:25 +00:00
Nick Mathewson
94fb4d0a1e r15317@tombo: nickm | 2008-04-24 21:17:49 -0400 
Add new functions to be more threadsafe (and structure-ignorant) than event_set.


svn:r726
 2008-04-25 01:18:18 +00:00
Nick Mathewson
963ae2cf42 r15212@tombo: nickm | 2008-04-16 17:01:21 -0400 
Remove some needless includes


svn:r712
 2008-04-16 21:01:31 +00:00
Nick Mathewson
0ac73078ed r15193@tombo: nickm | 2008-04-16 16:00:35 -0400 
Split event.h into several new headers in include/event2.  event.h is now just a wrapper that includes all the subheaders.


svn:r711
 2008-04-16 20:01:51 +00:00