]> granicus.if.org Git - libevent/log
libevent
13 years agoTry to clear up more size_t vs int/long issues.
Nick Mathewson [Thu, 28 Oct 2010 02:57:53 +0000 (22:57 -0400)]
Try to clear up more size_t vs int/long issues.

13 years agoFix signal handler types for win64.
Nick Mathewson [Wed, 27 Oct 2010 21:37:32 +0000 (17:37 -0400)]
Fix signal handler types for win64.

13 years agoSet _EVENT_SIZEOF_VOID_P correctly on win32 and win64
Dimitre Piskyulev [Wed, 27 Oct 2010 21:32:41 +0000 (17:32 -0400)]
Set _EVENT_SIZEOF_VOID_P correctly on win32 and win64

13 years agoFix some ints to evutil_socket_t; make tests pass on win64.
Dimitre Piskyulev [Wed, 27 Oct 2010 21:31:52 +0000 (17:31 -0400)]
Fix some ints to evutil_socket_t; make tests pass on win64.

13 years agoFix som event_warns that should have been event_warnx
Nick Mathewson [Wed, 27 Oct 2010 14:36:08 +0000 (10:36 -0400)]
Fix som event_warns that should have been event_warnx

13 years agoMerge remote branch 'trondn/master'
Nick Mathewson [Wed, 27 Oct 2010 14:27:04 +0000 (10:27 -0400)]
Merge remote branch 'trondn/master'

13 years agoCheck return value for ioctlsocket on win32
Trond Norbye [Wed, 27 Oct 2010 10:47:07 +0000 (12:47 +0200)]
Check return value for ioctlsocket on win32

13 years agoFix some uses of int for socket in regress
Nick Mathewson [Wed, 27 Oct 2010 02:27:57 +0000 (22:27 -0400)]
Fix some uses of int for socket in regress

13 years agoMerge remote branch 'github/20_http_read_after_write'
Nick Mathewson [Wed, 27 Oct 2010 01:33:22 +0000 (21:33 -0400)]
Merge remote branch 'github/20_http_read_after_write'

13 years agoMerge remote branch 'github/20_abi_breaks'
Nick Mathewson [Wed, 27 Oct 2010 01:33:13 +0000 (21:33 -0400)]
Merge remote branch 'github/20_abi_breaks'

13 years agoMerge remote branch 'github/20_ratelim_size'
Nick Mathewson [Wed, 27 Oct 2010 01:33:05 +0000 (21:33 -0400)]
Merge remote branch 'github/20_ratelim_size'

13 years agoMerge remote branch 'github/20_chain_realign'
Nick Mathewson [Wed, 27 Oct 2010 01:32:53 +0000 (21:32 -0400)]
Merge remote branch 'github/20_chain_realign'

13 years agoFix bugs in posix thread-id calculation when sizeof(pthread_t) != sizeof(long)
Nick Mathewson [Tue, 26 Oct 2010 16:09:20 +0000 (12:09 -0400)]
Fix bugs in posix thread-id calculation when sizeof(pthread_t) != sizeof(long)

When pthread_t was smaller, our calculated thread IDs would include
uninitialized RAM, and so our unit tests would fail because thread_ids
would never match one another.

When pthread_t was larger and alignment was big-endian, our calculated
thread IDs would only have the most significant bytes of the
pthread_t, when in practice all the entropy is in the low-order bytes.

Found with help from Dagobert Michelsen.

13 years agoRemove event-config.h from .gitignore; it moved to include/event2
Nick Mathewson [Tue, 26 Oct 2010 15:07:26 +0000 (11:07 -0400)]
Remove event-config.h from .gitignore; it moved to include/event2

13 years agoFix a minor syntax error that most compilers didn't care about
Nick Mathewson [Tue, 26 Oct 2010 15:01:58 +0000 (11:01 -0400)]
Fix a minor syntax error that most compilers didn't care about

13 years agoNote that 2.0.9 will break the ABI, and make changes we were postponing.
Nick Mathewson [Tue, 26 Oct 2010 14:38:30 +0000 (10:38 -0400)]
Note that 2.0.9 will break the ABI, and make changes we were postponing.

We had to turn a couple of 32-bit size arguments into 64-bit arguments
or size_t arguments (since otherwise we would have had to do it post
2.0.x-stable, and that would be worse).

13 years agoMake rate-limits go up to SIZE_MAX/EV_SSIZE_MAX, not just INT32_MAX
Nick Mathewson [Tue, 26 Oct 2010 14:27:29 +0000 (10:27 -0400)]
Make rate-limits go up to SIZE_MAX/EV_SSIZE_MAX, not just INT32_MAX

Someday, when networks are far faster and people frequently want a
burst value greater than 2GB per tick, this will seem very forsightful
indeed.

For now, it breaks ABI, but not source.  Fixes bug 3092096.

13 years agoCorrect logic for realigning a chain in evbuffer_add
Nick Mathewson [Tue, 26 Oct 2010 02:36:23 +0000 (22:36 -0400)]
Correct logic for realigning a chain in evbuffer_add

The old logic was both too eager to realign (it would move a whole
chain to save a byte) and too reluctant to realign (it would only
realign when data would fit into the misaligned portion, without
considering the space at the end of the chain).

The new logic matches that from evbuffer_expand_singlechain: it only
realigns a chain when not much data is to be moved, and there's a
bunch of space to be regained.

Spotted by Yan Lin.

13 years agoAvoid missed-request bug when entire http request arrives before data is flushed
Nick Mathewson [Tue, 26 Oct 2010 01:53:15 +0000 (21:53 -0400)]
Avoid missed-request bug when entire http request arrives before data is flushed

The trigger for starting to read the first line of a request used to
be, "When data has arrived and we're looking for the first line."
But that's not good enough: if the entire next request gets read
into our bufev->inbuf while we're still processing the current
request, we'll never see any more data arrive, and so will never
process it.

So the fix is to make sure that whenever we hit evhttp_send_done, we
call evhttp_read_cb.  We can't call it directly, though, since
evhttp_send_done is reachable from the user API, and evhttp_read_cb
can invoke user functions, and we don't want to force everyone to
have reentrant callbacks.  So, we use a deferred_cb.

Found by Ivan Andropov.  This is bug 3008344.

13 years agoCorrectly count req->body_size on http usage without Content-Length
Nick Mathewson [Mon, 25 Oct 2010 20:09:11 +0000 (16:09 -0400)]
Correctly count req->body_size on http usage without Content-Length

There was a dumb bug where we would look at the length of the input
buffer immediately _after_ we drained it.

13 years agoFix a bug where we would read too much data in HTTP bodies or requests.
Nick Mathewson [Mon, 25 Oct 2010 20:00:47 +0000 (16:00 -0400)]
Fix a bug where we would read too much data in HTTP bodies or requests.

We were using evbuffer_add_buffer, which moved the entire buffer
contents.  But if we had a valid content_length, we only wanted to
move up to the amount of data remaining in ntoread.  Our bug would
make us put our ntoread in the negative, which would in turn make us
read all data until the connection closed.

Found by Denis Bilenko.  Should fix bug 2963172.

13 years agoFix Content-Length when trying send more than 100GB of data (!) on an evhttp.
Nick Mathewson [Mon, 25 Oct 2010 19:49:42 +0000 (15:49 -0400)]
Fix Content-Length when trying send more than 100GB of data (!) on an evhttp.

13 years agoadd a requested docstring for event_rpcgen.CommandLine.__init__
Nick Mathewson [Mon, 25 Oct 2010 19:23:41 +0000 (15:23 -0400)]
add a requested docstring for event_rpcgen.CommandLine.__init__

13 years agoMerge remote branch 'github/http_and_listener'
Nick Mathewson [Mon, 25 Oct 2010 19:13:32 +0000 (15:13 -0400)]
Merge remote branch 'github/http_and_listener'

13 years agoMake evbuffer_add_file take ev_off_t, not off_t
Nick Mathewson [Mon, 25 Oct 2010 18:29:30 +0000 (14:29 -0400)]
Make evbuffer_add_file take ev_off_t, not off_t

This change has no effect on non-windows platforms, since those
either define off_t to 64-bits, or allow you to decide whether
it should be 64-bits yourself via some LARGEFILE-like macro.

On Windows, however, off_t is always 32-bit, so it's a bad choice
for "file size" or "file offset" values.  Instead, I'm adding
an ev_off_t type, and using it in the one place where we used
off_t to mean "the size of a file" or "an offset into a file" in the
API.

This breaks ABI compatibility on Windows.

13 years agoFunctions to actually use evhttp_bound_socket with/as evconnlistener.
Nick Mathewson [Mon, 25 Oct 2010 15:50:51 +0000 (11:50 -0400)]
Functions to actually use evhttp_bound_socket with/as evconnlistener.

13 years agoAdd a function to change a listener's callback.
Nick Mathewson [Mon, 25 Oct 2010 15:47:05 +0000 (11:47 -0400)]
Add a function to change a listener's callback.

You can also now initialize listeners with no callbacks set; if so,
they won't get enabled until the callback is set to non-NULL.

14 years agoSimplify the logic for choosing EPOLL_CTL_ADD vs EPOLL_CTL_MOD
Nick Mathewson [Sun, 24 Oct 2010 15:51:14 +0000 (11:51 -0400)]
Simplify the logic for choosing EPOLL_CTL_ADD vs EPOLL_CTL_MOD

Previously, we chose "ADD" whenever old_events==new_events, (since
we expected the add to fail with EEXIST), or whenever old_events
was==0, and MOD otherwise (i.e., when old_events was nonzero and not
equal to new_events).

But now that we retry failed MOD events as ADD *and* failed ADD
events as MOD, the important thing is now to try to guess right the
largest amount of the time, since guessing right means we do only
one syscall, but guessing wrong means we do two.

When old_events is 0, ADD is probably right (unless we're hitting
the dup bug, when we'll fall back).

And when old_events is set and != new_events, MOD is almost
certainly right for the same reasons as before.

But when old_events is equal to new events, then MOD will work fine
unless we closed and reopened the fd, in which case we'll have to
fall back to the ADD case.  (Redundant del/add pairs are more common
than closes for most use cases.)

This change lets us avoid calculating new_events, which ought to
save a little time in epoll.c

14 years agoFix a nasty bug related to use of dup() with epoll on Linux
Nick Mathewson [Sun, 24 Oct 2010 15:38:29 +0000 (11:38 -0400)]
Fix a nasty bug related to use of dup() with epoll on Linux

Current versions of the Linux kernel don't seem to remove the struct
epitem for a given (file,fd) combo when the fd is closed unless the
file itself is also completely closed.  This means that if you do:
   fd = dup(fd_orig);
   add(fd);
   close(fd);
   dup2(fd_orig, fd);
   add(fd);
you will get an EEXIST when you should have gotten a success.  This
could cause warnings and dropped events when using dup and epoll.

The solution is pretty simple: when we get an EEXIST from
EPOLL_CTL_ADD, we retry with EPOLL_CTL_MOD.

Unit test included to demonstrate the bug.

Found due to the patient efforts of Gilad Benjamini; diagnosed with
help from Nicholas Marriott.

14 years agoMerge branch 'http_uri_parse'
Nick Mathewson [Thu, 21 Oct 2010 19:33:13 +0000 (15:33 -0400)]
Merge branch 'http_uri_parse'

14 years agoUnit tests for evhttp_uri_set*
Nick Mathewson [Thu, 21 Oct 2010 18:53:21 +0000 (14:53 -0400)]
Unit tests for evhttp_uri_set*

14 years agoMake evhttp_uri non-public, and give it accessor functions.
Nick Mathewson [Thu, 21 Oct 2010 18:41:12 +0000 (14:41 -0400)]
Make evhttp_uri non-public, and give it accessor functions.

14 years agoDocument that two bufferevent functions only work on socket bufferevents
Nick Mathewson [Thu, 21 Oct 2010 18:05:04 +0000 (14:05 -0400)]
Document that two bufferevent functions only work on socket bufferevents

14 years agoAdd a bufferevent_get_base function
Nick Mathewson [Thu, 21 Oct 2010 18:04:24 +0000 (14:04 -0400)]
Add a bufferevent_get_base function

14 years agoUpdate the HTTP regression tests to use Libevent2 apis for non-http stuff
Nick Mathewson [Thu, 21 Oct 2010 16:48:13 +0000 (12:48 -0400)]
Update the HTTP regression tests to use Libevent2 apis for non-http stuff

14 years agoStop using Libevent-1 headers in regress_http
Nick Mathewson [Thu, 21 Oct 2010 16:27:16 +0000 (12:27 -0400)]
Stop using Libevent-1 headers in regress_http

14 years agoMerge branch 'http_small_tweaks'
Nick Mathewson [Thu, 21 Oct 2010 16:23:10 +0000 (12:23 -0400)]
Merge branch 'http_small_tweaks'

Conflicts:
http-internal.h

14 years agoAdd evhttp_connection_get_base() to get the event_base from an http connection
Nick Mathewson [Thu, 21 Oct 2010 16:19:28 +0000 (12:19 -0400)]
Add evhttp_connection_get_base() to get the event_base from an http connection

Based on a patch by Mark Ellzey from 27 July 2010.

Closes ticket 3052406

14 years agoFix a 100%-CPU bug where an SSL connection would sometimes never stop trying to write
Nick Mathewson [Wed, 20 Oct 2010 17:41:02 +0000 (13:41 -0400)]
Fix a 100%-CPU bug where an SSL connection would sometimes never stop trying to write

If an SSL connection becamse disabled or suspended before became open,
it could (under the right circumstances) wind up without ever getting
its write callback disabled.

The most correct fix is probably more subtle, and involves checking
all caseswhen a write callback is enabled or disabled.  This fix is
more blunt, and explicitly checks whether the callback should have
been disabled at the end of the callback to prevent infinite looping.

Diagnosed with help from Sebastian Hahn

14 years agoAdd evhttp_parse_query_str to be used with evhttp_uri_parse.
Nick Mathewson [Tue, 19 Oct 2010 17:15:48 +0000 (13:15 -0400)]
Add evhttp_parse_query_str to be used with evhttp_uri_parse.

The old evhttp_parse_query() doesn't work well with struct
evhttp_uri.query, since it expects to get whole URIs, rather than
just the query portion.

14 years agoDocument behavior of URI parsing more thoroughly.
Nick Mathewson [Tue, 19 Oct 2010 17:02:18 +0000 (13:02 -0400)]
Document behavior of URI parsing more thoroughly.

Also, move evhttp_uri struct into http.h, since it is part of the API.

14 years agoAdd a huge pile of tests for the new URI functions, and make them pass.
Nick Mathewson [Tue, 19 Oct 2010 16:35:50 +0000 (12:35 -0400)]
Add a huge pile of tests for the new URI functions, and make them pass.

14 years agoImprovements to tinytest_macros.h
Nick Mathewson [Tue, 19 Oct 2010 16:33:50 +0000 (12:33 -0400)]
Improvements to tinytest_macros.h

First, handle cases where we have %s in a tt_want or tt_assert.

Second, add tt_want_*_op that do a tt_*_op test, but do not exit the
test on failure.

We should push these upstream to tinytest some time.

14 years agoRevise evhttp_uri_parse implementation to handle more of RFC3986
Nick Mathewson [Tue, 19 Oct 2010 15:26:59 +0000 (11:26 -0400)]
Revise evhttp_uri_parse implementation to handle more of RFC3986

14 years agoClean up error handling in uri_parse a little
Nick Mathewson [Mon, 18 Oct 2010 18:43:54 +0000 (14:43 -0400)]
Clean up error handling in uri_parse a little

14 years agoDo not silently truncate URIs in evhttp_uri_join. Also avoid evbuffer_pullup.
Nick Mathewson [Mon, 18 Oct 2010 18:38:48 +0000 (14:38 -0400)]
Do not silently truncate URIs in evhttp_uri_join. Also avoid evbuffer_pullup.

14 years agoMake evhttp_uri_parse and friends conform to memory management standards
Nick Mathewson [Mon, 18 Oct 2010 18:34:20 +0000 (14:34 -0400)]
Make evhttp_uri_parse and friends conform to memory management standards

14 years agoIntroduce absolute URI parsing helpers.
Pavel Plesov [Sun, 8 Aug 2010 12:46:39 +0000 (16:46 +0400)]
Introduce absolute URI parsing helpers.

See evhttp_uri_parse(), evhttp_uri_free() and evhttp_uri_join() for details.

14 years agoMerge branch 'http_parse'
Nick Mathewson [Mon, 18 Oct 2010 18:20:06 +0000 (14:20 -0400)]
Merge branch 'http_parse'

14 years agoAdd evhttp_request_get_command so code can tell GET from POST without peeking at...
Nick Mathewson [Mon, 18 Oct 2010 17:58:02 +0000 (13:58 -0400)]
Add evhttp_request_get_command so code can tell GET from POST without peeking at the struct.

14 years agoModernize header usage in bench_http.c
Nick Mathewson [Mon, 18 Oct 2010 17:53:31 +0000 (13:53 -0400)]
Modernize header usage in bench_http.c

14 years agoIncrement version in git to 2.0.8-rc-dev
Nick Mathewson [Fri, 15 Oct 2010 02:12:32 +0000 (22:12 -0400)]
Increment version in git to 2.0.8-rc-dev

14 years agoIncrement the version to 2.0.8-rc release-2.0.8-rc
Nick Mathewson [Thu, 14 Oct 2010 22:36:07 +0000 (18:36 -0400)]
Increment the version to 2.0.8-rc

NOTE: This is not the official release until I tag it.  If you see
    this commit, and you decide that Libevent 2.0.8-rc is now
    finalized, you might get something besides 2.0.8-rc.

14 years agoChangelog and readme for 2.0.8-rc
Nick Mathewson [Thu, 14 Oct 2010 22:35:11 +0000 (18:35 -0400)]
Changelog and readme for 2.0.8-rc

14 years agoFixes for MSVC compilation
Nick Mathewson [Thu, 14 Oct 2010 18:40:40 +0000 (14:40 -0400)]
Fixes for MSVC compilation

14 years agoMake the --enable-gcc-warnings option include signed comparison warnings
Nick Mathewson [Thu, 14 Oct 2010 17:54:15 +0000 (13:54 -0400)]
Make the --enable-gcc-warnings option include signed comparison warnings

14 years agoFix signed/unsigned warnings on win32
Nick Mathewson [Thu, 14 Oct 2010 17:51:24 +0000 (13:51 -0400)]
Fix signed/unsigned warnings on win32

14 years agoFix signed/unsigned warnings on opensolaris, where iov_len is signed
Nick Mathewson [Thu, 14 Oct 2010 17:48:40 +0000 (13:48 -0400)]
Fix signed/unsigned warnings on opensolaris, where iov_len is signed

14 years agoFix -Wsigned-compare warnings in test/*
Nick Mathewson [Thu, 14 Oct 2010 17:16:41 +0000 (13:16 -0400)]
Fix -Wsigned-compare warnings in test/*

14 years agoadd limits.h to event_tagging.c so opensolaris will build
Nick Mathewson [Thu, 14 Oct 2010 17:16:00 +0000 (13:16 -0400)]
add limits.h to event_tagging.c so opensolaris will build

14 years agofix a signed/unsigned warning in kqueue.c
Nick Mathewson [Thu, 14 Oct 2010 17:15:32 +0000 (13:15 -0400)]
fix a signed/unsigned warning in kqueue.c

14 years agoNew unit test for ssl bufferevents starting with connected SSLs.
Nick Mathewson [Thu, 14 Oct 2010 15:44:32 +0000 (11:44 -0400)]
New unit test for ssl bufferevents starting with connected SSLs.

14 years agoFix a case where an ssl bufferevent with CLOSE_ON_FREE didn't close its fd
Nick Mathewson [Thu, 14 Oct 2010 15:41:10 +0000 (11:41 -0400)]
Fix a case where an ssl bufferevent with CLOSE_ON_FREE didn't close its fd

This could happen when we got an SSL with a BIO already set on it.

14 years agoAvoid spurious reads from just-created open openssl bufferevents
Nick Mathewson [Thu, 14 Oct 2010 14:53:26 +0000 (10:53 -0400)]
Avoid spurious reads from just-created open openssl bufferevents

When handshaking, we listen for reads or writes from the
transport. But when we're connected, we start out with writes enabled
and reads disabled, which means we should not have the transport read
for us.

14 years agoThe corrected bufferevent filter semantics let us fix our openssl tests
Nick Mathewson [Fri, 8 Oct 2010 05:09:02 +0000 (01:09 -0400)]
The corrected bufferevent filter semantics let us fix our openssl tests

14 years agoCorrect logic on disabling underlying bufferevents when disabling a filter
Nick Mathewson [Fri, 8 Oct 2010 04:59:02 +0000 (00:59 -0400)]
Correct logic on disabling underlying bufferevents when disabling a filter

Previously, whenever writing was disabled on a bufferevent_filter (or
a filtering SSL bufferevent), we would stop writing on the underlying
bufferevent.  This would make for trouble, though, since if you
implemented common patterns like "stop writing once data X has been
flushed", your bufferevent filter would disable the underlying
bufferevent after the data was flushed to the underlying bufferevent,
but before actually having it written to the network.

Now, we have filters leave their underlying bufferevents enabled for
reading and writing for reading and writing immediately.  They are not
disabled, unless the user wants to disable them, which is now allowed.
To handle the case where we want to choke reading on the underlying
bufferevent because the filter no longer wants to read, we use
bufferevent_suspend_read().  This is analogous to the way that we use
bufferevent_suspend_write() to suspend writing on a filtering
bufferevent when the underlying bufferevent's output buffer has hit
its high watermark.

14 years agoFix serious bugs in per-bufferevent rate-limiting code
Nick Mathewson [Tue, 12 Oct 2010 17:46:14 +0000 (13:46 -0400)]
Fix serious bugs in per-bufferevent rate-limiting code

Our old code was too zealous about deleting the refill events that
would actually make connections able to read or write again after
they had run out of bandwidth.  Under some circumstances, this could
cause a bufferevent to never actually refill one of its
rate-limiting buckets.

Also, the code treated setting a per-connection rate-limit on a
connection that already had a group-limit as if it were changing the
limit on a connection whose allocation had already run out.

This patch fixes both of those problems.

14 years agoHandle rate-limiting for reading on OpenSSL bufferevents correctly.
Nick Mathewson [Tue, 12 Oct 2010 16:59:13 +0000 (12:59 -0400)]
Handle rate-limiting for reading on OpenSSL bufferevents correctly.

We were looking at the number of bytes read on the wbio, not in the
rbio.  But these are usually different BIOs, and the reading is
supposed to happen on the rbio.

14 years agoMerge branch '20_internal_prio'
Nick Mathewson [Sat, 9 Oct 2010 04:02:31 +0000 (00:02 -0400)]
Merge branch '20_internal_prio'

14 years agoNew evhttp_uri(encode|decode) functions to handle + and NUL characters right
Nick Mathewson [Fri, 8 Oct 2010 17:05:13 +0000 (13:05 -0400)]
New evhttp_uri(encode|decode) functions to handle + and NUL characters right

The old evhttp_decode_uri() function would act as tough it was doing
an (illegal, undefined) decode operation on a whole URL at once, and
treat + characters following a ? as different from + characters
preceding one.  But that's not useful: If you are decoding a URI
before splitting off query parameters, you are begging to fail as soon
as somebody gives you a value with an encoded & in it.

The new evhttp_uridecode() function takes an argument that says
whether to decode + signs.  Both uridecode and uriencode also now
support encoding or decoding to strings with internal 0-valued
characters.

14 years agoevhttp_encode_uri encodes all reserved characters, including !$'()*+,/:=@
Nick Mathewson [Fri, 8 Oct 2010 16:57:11 +0000 (12:57 -0400)]
evhttp_encode_uri encodes all reserved characters, including !$'()*+,/:=@

Perviously, some characters not listed as "unreserved" by RFC 3986
(notably "!$'()*+,/:=@") were not encoded by evhttp_encode_uri.  This
made trouble, especially when encoding path components (where @ and /
are bad news) and parameters (where + should get encoded so it doesn't
later decode into a space).

Spotted by Bas Verhoeven.

14 years agoMerge branch 'iovmax'
Nick Mathewson [Fri, 8 Oct 2010 01:06:25 +0000 (21:06 -0400)]
Merge branch 'iovmax'

14 years agoTurn some booleans in evconnlistener_iocp into one-bit bitfields.
Nick Mathewson [Thu, 7 Oct 2010 22:05:01 +0000 (18:05 -0400)]
Turn some booleans in evconnlistener_iocp into one-bit bitfields.

14 years agoMake iocp/listener/error work; don't accept again if lev is disabled.
Christopher Davis [Thu, 7 Oct 2010 20:41:39 +0000 (13:41 -0700)]
Make iocp/listener/error work; don't accept again if lev is disabled.

14 years agoFix allocation error for IOCP listeners. Probably harmless, since struct event is big
Nick Mathewson [Thu, 23 Sep 2010 21:41:49 +0000 (17:41 -0400)]
Fix allocation error for IOCP listeners. Probably harmless, since struct event is big

14 years agoAdd a LEV_OPT_THREADSAFE option for threadsafe evconnlisteners
Nick Mathewson [Thu, 23 Sep 2010 20:49:58 +0000 (16:49 -0400)]
Add a LEV_OPT_THREADSAFE option for threadsafe evconnlisteners

14 years agoTweak evhttp_parse_query hack to avoid breaking abi
Nick Mathewson [Wed, 6 Oct 2010 16:35:38 +0000 (12:35 -0400)]
Tweak evhttp_parse_query hack to avoid breaking abi

14 years agoLet evhttp_parse_query return -1 on failure
Nick Mathewson [Wed, 6 Oct 2010 15:48:52 +0000 (11:48 -0400)]
Let evhttp_parse_query return -1 on failure

We already detected certain malformed queries, but we responded by
aborting the query-parsing process half-way through without telling
the user.  Now, if query-parsing fails, no headers are returned, and
evhttp_parse_query returns -1.

14 years agoFix an EINVAL on evbuffer_write_iovec on OpenSolaris.
Nick Mathewson [Wed, 6 Oct 2010 01:34:07 +0000 (21:34 -0400)]
Fix an EINVAL on evbuffer_write_iovec on OpenSolaris.

The writev() call is limited to at most IOV_MAX iovecs (or UIO_MAXIOV,
depending on whom you ask).  This isn't a problem anywhere we've
tested except on OpenSolaris, where IOV_MAX was a mere 16.

This patch makes us go from "use up to 128 iovecs when writing" to
"use up to 128 iovecs when writing, or IOV_MAX/UIO_MAXIOV, whichever
is less".  This is still wrong if you somehow find a platform that
defines IOV_MAX < UIO_MAXIOV, but I hereby claim that such a platform
is too stupid to worry about for now.

Found by Michael Herf.

14 years agoFix warnings on mingw with gcc 4.5
Nick Mathewson [Tue, 5 Oct 2010 18:29:48 +0000 (14:29 -0400)]
Fix warnings on mingw with gcc 4.5

14 years agoDefine symbolic constants to use in place of SHUT_RD etc
Nick Mathewson [Tue, 5 Oct 2010 17:06:32 +0000 (13:06 -0400)]
Define symbolic constants to use in place of SHUT_RD etc

14 years agoSend a shutdown(SHUT_WR) before closing an http connection
Christopher Davis [Tue, 5 Oct 2010 17:01:54 +0000 (13:01 -0400)]
Send a shutdown(SHUT_WR) before closing an http connection

This avoids getting an ECONNRESET from the TCP stack.

Fixes bug 2928690

14 years agoFix a spurious-call bug on epoll.c
Nick Mathewson [Fri, 1 Oct 2010 03:15:47 +0000 (23:15 -0400)]
Fix a spurious-call bug on epoll.c

We were trying to check whether any events had really been
notified on an fd before calling evmap_io_active on it, but instead
we were checking for an event pointer, which was always true.

In practice, this patch shouldn't change much, since epoll_wait
shouldn't return an event unless there is actually an event going
on.

Spotted by an anonymous bug reporter on Sourceforge.  Closes bug
3078425.

14 years agoMerge remote branch 'github/signed_compare'
Nick Mathewson [Tue, 28 Sep 2010 05:09:17 +0000 (01:09 -0400)]
Merge remote branch 'github/signed_compare'

14 years agoMerge remote branch 'github/win_lib'
Nick Mathewson [Mon, 27 Sep 2010 20:05:20 +0000 (16:05 -0400)]
Merge remote branch 'github/win_lib'

14 years agoDo not search outside of the system directory for windows DLLs
Nick Mathewson [Mon, 27 Sep 2010 19:12:55 +0000 (15:12 -0400)]
Do not search outside of the system directory for windows DLLs

Hardens against some attacks.

14 years agoFix compile in kqueue.c
Sebastian Hahn [Mon, 27 Sep 2010 19:14:28 +0000 (21:14 +0200)]
Fix compile in kqueue.c

Commit 38d09606 removed the evsigbase pointer, but forgot to remove
an assignment to it in kqueue.c.

14 years agoFix all warnings in the main codebase flagged by -Wsigned-compare
Nick Mathewson [Fri, 24 Sep 2010 02:45:55 +0000 (22:45 -0400)]
Fix all warnings in the main codebase flagged by -Wsigned-compare

Remember, the code
   int is_less_than(int a, unsigned b) {
      return a < b;
   }
is buggy, since the C integer promotion rules basically turn it into
   int is_less_than(int a, unsigned b) {
      return ((unsigned)a) < b;
   }
and we really want something closer to
   int is_less_than(int a, unsigned b) {
      return a < 0 || ((unsigned)a) < b;
   }
.

Suggested by an example from Ralph Castain

14 years agoUnit tests for listener error callbacks
Nick Mathewson [Thu, 23 Sep 2010 18:23:45 +0000 (14:23 -0400)]
Unit tests for listener error callbacks

14 years agoAdd error callback to evconnlistener
Simon Perreault [Mon, 20 Sep 2010 16:47:39 +0000 (12:47 -0400)]
Add error callback to evconnlistener

14 years agoMake event.c debugging messages report fds
Nick Mathewson [Wed, 22 Sep 2010 02:44:39 +0000 (22:44 -0400)]
Make event.c debugging messages report fds

14 years agoMake debugging output for epoll backend more comprehensive
Nick Mathewson [Wed, 22 Sep 2010 02:23:32 +0000 (22:23 -0400)]
Make debugging output for epoll backend more comprehensive

14 years agoPut internal events at highest priority
Nick Mathewson [Fri, 17 Sep 2010 04:24:50 +0000 (00:24 -0400)]
Put internal events at highest priority

(If we allow user events to starve internal events, then internal events
never actually happen, signals don't get acked, etc)

14 years agoRemove event_base.evsigbase; nothing used it.
Nick Mathewson [Wed, 15 Sep 2010 16:50:31 +0000 (12:50 -0400)]
Remove event_base.evsigbase; nothing used it.

14 years agoRemove the now-useless evsig_caught and evsig_process
Nick Mathewson [Wed, 15 Sep 2010 05:54:51 +0000 (01:54 -0400)]
Remove the now-useless evsig_caught and evsig_process

14 years agoMake default signal backend fully threadsafe
Nick Mathewson [Wed, 15 Sep 2010 05:40:02 +0000 (01:40 -0400)]
Make default signal backend fully threadsafe

Jason Toffaletti discovered with helgrind that our signal handler was
messing with evsig_base, which can be set from lots of places in the
code.  Ordinarly, we'd just stick a lock on it, except that it is
illegal (and genuinely error-prone) to call pthread_mutex_acquire()
from inside a signal handler.

The solution is to only store the fd we write to in a static variable,
write the signal number to the fd, and put evsig_cb in charge of
activating signal events.

I have no idea how we'll cope if we want to enable this to handle
siginfo (where available) in the future.

14 years agoWarn when using the error-prone EV_SIGNAL interface in an error-prone way. Also...
Nick Mathewson [Wed, 15 Sep 2010 05:08:39 +0000 (01:08 -0400)]
Warn when using the error-prone EV_SIGNAL interface in an error-prone way.  Also, fix a couple of race conditions in signal.c

When using the signal.c signal backend, Libevent currently only allows
one event_base to actually receive signals at a time.  (This has been
the behavior since at least 1.4 and probably much earlier.)  Now, we
detect and warn if you're likely to be racing about which signal goes
to which thread.

We also add a lock to control modifications of the evsig_base field,
to avoid race conditions like those found by Jason Toffaletti.

Also, more comments.  Comments are good.

14 years agoObey enabled status when unsuspending
Simon Perreault [Thu, 9 Sep 2010 21:19:20 +0000 (17:19 -0400)]
Obey enabled status when unsuspending

14 years agoBump to the latest version of tinytest
Nick Mathewson [Thu, 9 Sep 2010 20:13:09 +0000 (16:13 -0400)]
Bump to the latest version of tinytest

This lets us do without libevent-specific code in tinytest.c, and
lets us add a feature to skip individual tests from the command
line.

14 years agoMake SSL tests cover enabling/disabling EV_READ.
Nick Mathewson [Thu, 9 Sep 2010 20:01:42 +0000 (16:01 -0400)]
Make SSL tests cover enabling/disabling EV_READ.

I want my 80% coverage.