]> granicus.if.org Git - libevent/log
libevent
14 years agomore whitespace normalization
Nick Mathewson [Fri, 5 Mar 2010 18:00:15 +0000 (13:00 -0500)]
more whitespace normalization

14 years agoReplace users of "int fd" with "evutil_socket_t fd" in portable code
Nick Mathewson [Fri, 5 Mar 2010 17:47:46 +0000 (12:47 -0500)]
Replace users of "int fd" with "evutil_socket_t fd" in portable code

Remeber, win32 has a socket type that's actually a handle, so if
there's a chance that code is run on win32, we can't use "int" as the
socket type.

This isn't a blind search-and-replace: sometimes an fd is really in
fact for a file, and not a socket at all.

14 years agoAdd Christopher Clark and Maxim Yegorushkin to the LICENSE file
Nick Mathewson [Thu, 4 Mar 2010 06:40:32 +0000 (01:40 -0500)]
Add Christopher Clark and Maxim Yegorushkin to the LICENSE file

14 years agoUpdate all our copyright notices to say "2010"
Nick Mathewson [Thu, 4 Mar 2010 06:25:51 +0000 (01:25 -0500)]
Update all our copyright notices to say "2010"

14 years agoImprove the speed of evbuffer_readln()
Nick Mathewson [Tue, 2 Mar 2010 22:00:06 +0000 (17:00 -0500)]
Improve the speed of evbuffer_readln()

This makes some cases of bench_http about 5% faster.

Our internal evbuffer_strpbrk() function was overly general (it tried
to handle all character sets when we only used it for "\r\n"), and
not very efficient (it called memchr once for each character in the
buffer until it found a \r or a \n).  It actually showed up in some
profiles for HTTP testing, since evbuffer_readln() calls it when doing
loose CRLF detection.  This patch replaces it with a faster
implementation.

14 years agoRemove signal_assign() and signal_new() macros.
Nick Mathewson [Wed, 3 Mar 2010 17:15:15 +0000 (12:15 -0500)]
Remove signal_assign() and signal_new() macros.

These were introduced and deprecated in the same version (2.0.1-alpha),
presumably in two-stage process.  Everybody sane should be using
evsignal_assign() and evsignal_new() instead.

14 years agoVC has no getopt(), so do without in bench_http.
Christopher Davis [Tue, 2 Mar 2010 23:16:28 +0000 (15:16 -0800)]
VC has no getopt(), so do without in bench_http.

14 years agoGet bench_http to work on Windows; add a switch to enable IOCP.
Christopher Davis [Tue, 2 Mar 2010 22:34:30 +0000 (14:34 -0800)]
Get bench_http to work on Windows; add a switch to enable IOCP.

14 years agoRevert the broken part of 2cffd6c937
Nick Mathewson [Tue, 2 Mar 2010 03:12:04 +0000 (22:12 -0500)]
Revert the broken part of 2cffd6c937

It looks like I accidentally removed most of WIN32-Code/event-config.h
when I was bumping the version.  Fortunately, this happened when I
bumped to 2.0.4-alpha-dev rather than when I bumped to 2.0.4-alpha. :)

This patch restores the deleted parts of WIN32-Code/event-config.h

14 years agoDistribute libevent.pc.in, not libevent.pc
Nick Mathewson [Tue, 2 Mar 2010 03:06:12 +0000 (22:06 -0500)]
Distribute libevent.pc.in, not libevent.pc

14 years agoBump version to 2.0.4-alpha-dev
Nick Mathewson [Sun, 28 Feb 2010 21:53:42 +0000 (16:53 -0500)]
Bump version to 2.0.4-alpha-dev

14 years agoBump the version to 2.0.4-alpha release-2.0.4-alpha
Nick Mathewson [Sun, 28 Feb 2010 17:55:29 +0000 (12:55 -0500)]
Bump the version to 2.0.4-alpha

14 years agoAdd a changelog for 2.0.4-alpha from Git, sorted by hand
Nick Mathewson [Sun, 28 Feb 2010 17:49:03 +0000 (12:49 -0500)]
Add a changelog for 2.0.4-alpha from Git, sorted by hand

14 years agoFix compilation with --disable-debug-mode
Nick Mathewson [Sun, 28 Feb 2010 17:52:39 +0000 (12:52 -0500)]
Fix compilation with --disable-debug-mode

14 years agoSmall cleanups on freebsd-connect-refused patch.
Nick Mathewson [Sun, 28 Feb 2010 03:27:13 +0000 (22:27 -0500)]
Small cleanups on freebsd-connect-refused patch.

There should be no need to call be_socket_enable: that does an
event_add().  What we really want to do is event_active(), to make
sure that the writecb is executed.

Also, there was one "} if () {" that was missing an else.

I've noted that the return value for evutil_socket_connect() is
getting screwy, but since that isn't an exported function, we can fix
it whenever.

14 years agodeal with connect() failing immediately
Niels Provos [Sun, 28 Feb 2010 02:59:06 +0000 (18:59 -0800)]
deal with connect() failing immediately

14 years agoFix arc4random compilation on MSVC.
Nick Mathewson [Thu, 25 Feb 2010 22:14:41 +0000 (17:14 -0500)]
Fix arc4random compilation on MSVC.

14 years agoTry to define a sane _EVENT_SIZEOF_SIZE_T for msvc compilation
Nick Mathewson [Thu, 25 Feb 2010 22:11:28 +0000 (17:11 -0500)]
Try to define a sane _EVENT_SIZEOF_SIZE_T for msvc compilation

14 years agoFix mingw compilation
Nick Mathewson [Thu, 25 Feb 2010 21:57:57 +0000 (16:57 -0500)]
Fix mingw compilation

14 years agoDelete stack-alloced event in new unit test before returning.
Nick Mathewson [Wed, 24 Feb 2010 18:40:06 +0000 (13:40 -0500)]
Delete stack-alloced event in new unit test before returning.

14 years agoUse new timeval diff comparison function in bufferevent test
Nick Mathewson [Wed, 24 Feb 2010 04:59:26 +0000 (23:59 -0500)]
Use new timeval diff comparison function in bufferevent test

14 years agoAdd test for periodic timers that get activated for other reasons
Nick Mathewson [Wed, 24 Feb 2010 04:55:32 +0000 (23:55 -0500)]
Add test for periodic timers that get activated for other reasons

This was already independently verified by the new bufferevent
timeout tests, but it's good to explicitly check that our code
does what it should.

14 years agoAdd a test for timeouts on filtering bufferevents.
Nick Mathewson [Tue, 23 Feb 2010 21:36:52 +0000 (16:36 -0500)]
Add a test for timeouts on filtering bufferevents.

14 years agoProvide consistent, tested semantics for bufferevent timeouts
Nick Mathewson [Sat, 20 Feb 2010 23:44:35 +0000 (18:44 -0500)]
Provide consistent, tested semantics for bufferevent timeouts

The different bufferevent implementations had different behavior for
their timeouts.  Some of them kept re-triggering the timeouts
indefinitely; some disabled the event immediately the first time a
timeout triggered.  Some of them made the timeouts only count when
the bufferevent was actively trying to read or write; some did not.

The new behavior is modeled after old socket bufferevents, since
they were here first and their behavior is relatively sane.
Basically, each timeout disables the bufferevent's corresponding
read or write operation when it fires.  Timeouts are stopped
whenever we suspend writing or reading, and reset whenever we
unsuspend writing or reading.  Calling bufferevent_enable resets a
timeout, as does changing the timeout value.

14 years agoFix a bug in resetting timeouts on persistent events when IO triggers.
Nick Mathewson [Tue, 23 Feb 2010 19:24:10 +0000 (14:24 -0500)]
Fix a bug in resetting timeouts on persistent events when IO triggers.

When we fixed persistent timeouts to make them reset themselves
based on the previous scheduled time rather than the current
time... we made them do so regardless of whether the event was
triggering because of a timeout or not!

This was of course bogus.  When a _timeout_ triggers, we should
schedule the event for N seconds based on the last
_schedule_ time... but when IO triggers, we should reset the
timeout for N seconds after now.

14 years agoFix some race conditions in persistent events and event_reinit
Nick Mathewson [Tue, 23 Feb 2010 20:14:57 +0000 (15:14 -0500)]
Fix some race conditions in persistent events and event_reinit

I found these by adding an EVENT_BASE_ASSERT_LOCKED() call to most
of the functions in event.c that can only be called while holding
the lock.

event_reinit() never grabbed the lock, but it needed to.

event_persist_closure accessed the base to call event_add_internal()
and gettime() when its caller had already dropped the lock.

event_pending() called gettime() without grabbing the lock.

14 years agoMerge remote branch 'github/split_free_from_decref'
Nick Mathewson [Tue, 23 Feb 2010 05:39:02 +0000 (00:39 -0500)]
Merge remote branch 'github/split_free_from_decref'

14 years agoExpose view of current rate limit as constrained by group limit
Nick Mathewson [Tue, 23 Feb 2010 05:38:30 +0000 (00:38 -0500)]
Expose view of current rate limit as constrained by group limit

14 years agoMake bufferevent_free() clear all callbacks immediately.
Nick Mathewson [Mon, 22 Feb 2010 20:38:23 +0000 (15:38 -0500)]
Make bufferevent_free() clear all callbacks immediately.

This should end the family of bugs where we call bufferevent_free()
while a pending callback is holding a reference on the bufferevent,
and the callback tries to invoke the user callbacks before it releases
its own final reference.

This means that bufferevent_decref() is now a separate function from
bufferevent_free().

14 years agoSuspend read/write on bufferevents during hostname lookup
Nick Mathewson [Sat, 20 Feb 2010 17:55:59 +0000 (12:55 -0500)]
Suspend read/write on bufferevents during hostname lookup

When we're doing a lookup in preparation for doing a connect, we
might have an unconnected socket on hand, and mustn't actually do
any reading or writing with it.

14 years agoClean up formatting: function/keyword spacing consistency.
Nick Mathewson [Fri, 19 Feb 2010 08:39:50 +0000 (03:39 -0500)]
Clean up formatting: function/keyword spacing consistency.

- Keywords always have a space before a paren.  Functions never do.

- No more than 3 blank lines in a row.

14 years agoClean up formatting: remove trailing spaces
Nick Mathewson [Thu, 18 Feb 2010 22:46:56 +0000 (17:46 -0500)]
Clean up formatting: remove trailing spaces

14 years agoClean up formatting: use tabs, not 8-spaces, to indent.
Nick Mathewson [Thu, 18 Feb 2010 22:41:15 +0000 (17:41 -0500)]
Clean up formatting: use tabs, not 8-spaces, to indent.

14 years agoClean up formatting: Disallow space-before-tab.
Nick Mathewson [Thu, 18 Feb 2010 22:08:50 +0000 (17:08 -0500)]
Clean up formatting: Disallow space-before-tab.

14 years agoWhen connect() succeeds immediately, don't invoke the callback immediately.
Nick Mathewson [Thu, 18 Feb 2010 19:50:44 +0000 (14:50 -0500)]
When connect() succeeds immediately, don't invoke the callback immediately.

We need this to get unit tests to pass on freebsd.

14 years agoAdd some headers to fix freebsd compilation
Nick Mathewson [Thu, 18 Feb 2010 18:52:04 +0000 (13:52 -0500)]
Add some headers to fix freebsd compilation

14 years agoAdd the "compile" script to gitignore.
Nick Mathewson [Thu, 18 Feb 2010 18:50:15 +0000 (13:50 -0500)]
Add the "compile" script to gitignore.

14 years agoAdd a unit test for secure rng.
Nick Mathewson [Thu, 18 Feb 2010 06:43:37 +0000 (01:43 -0500)]
Add a unit test for secure rng.

Mostly, this is just to make sure our arc4random_buf() implementation isn't
dumb.

14 years agoFix getpid() usage on Windows
Nick Mathewson [Thu, 18 Feb 2010 05:54:44 +0000 (00:54 -0500)]
Fix getpid() usage on Windows

On Windows, getpid() is _getpid(), and requires that we first include
<process.h>.  arc4random.c previously didn't know that.

Actually, I question whether arc4random needs to do its getpid() tricks
on Windows.  They exist only so that we remember to re-seed the ARC4
cipher whenever we fork... but Windows has no fork(), so I think we're
in the clear.

14 years agoWhen working without a current event base, don't try to use IOCP listeners
Nick Mathewson [Thu, 18 Feb 2010 05:27:35 +0000 (00:27 -0500)]
When working without a current event base, don't try to use IOCP listeners

This fixes a bug turned up with the http unit tests, where we create
the evhttp object using an implicit (NULL) event_base.  This failed
pretty badly when we tried to use IOCP-based listeners.  We could
hunt for the current base from inside listener.c in the future, or
get the iocp base some other way, but for now this is probably the safest
solution.

14 years agoConstruct Windows locks using InitializeCriticalSectionAndSpinCount
Nick Mathewson [Tue, 16 Feb 2010 00:54:15 +0000 (19:54 -0500)]
Construct Windows locks using InitializeCriticalSectionAndSpinCount

Previously we were using InitializeCriticalSection, which creates a
lock that blocks immediately on contention and waits to be
rescheduled.  This is inefficient; it's better to wait for a little
while before telling the US to reschedule us, in case the lock becomes
available again really soon (since most locks mostly do).

Good pthreads implementations do this automatically.  On Windows,
though, we need to call this magic function, and we need to pick the
spin count ourselves.

14 years agoMerge branch 'arc4random'
Nick Mathewson [Thu, 18 Feb 2010 04:02:28 +0000 (23:02 -0500)]
Merge branch 'arc4random'

14 years agoAdd the arc4random.c license to the LICENSE file.
Nick Mathewson [Thu, 18 Feb 2010 03:54:43 +0000 (22:54 -0500)]
Add the arc4random.c license to the LICENSE file.

14 years agoFix two unlocked reads in evbuffer.
Nick Mathewson [Tue, 16 Feb 2010 02:03:52 +0000 (21:03 -0500)]
Fix two unlocked reads in evbuffer.

Some initializers (in evbuffer_read and evbuffer_commit) were reading
the last and/or previous_to_last fields without grabbing the evbuffer
lock.

This may fix a hard-to-trigger race condition or two.

14 years agoUpdate event-config.h version number to match configure.in
Nick Mathewson [Mon, 15 Feb 2010 22:53:24 +0000 (17:53 -0500)]
Update event-config.h version number to match configure.in

14 years agoMerge commit 'niels/http_close_connection'
Nick Mathewson [Mon, 15 Feb 2010 22:07:26 +0000 (17:07 -0500)]
Merge commit 'niels/http_close_connection'

14 years agoIncrement the submicro version number.
Nick Mathewson [Mon, 15 Feb 2010 21:45:19 +0000 (16:45 -0500)]
Increment the submicro version number.

We've changed a couple of APIs introduced in 2.0.1-alpha, so it
behooves us to give high-needs apps (like Tor) a way to tell we've
done this.

Sensible apps will just say "is it 2.0.3-alpha or 2.0.4-alpha" and
ignore the existence of 2.0.3-alpha-dev, which is just as it should
be.

14 years agovalidate close cb on server when client connection closes
Niels Provos [Sun, 14 Feb 2010 01:04:17 +0000 (17:04 -0800)]
validate close cb on server when client connection closes

14 years agoclean up terminate_chunked test
Niels Provos [Sun, 14 Feb 2010 00:59:37 +0000 (16:59 -0800)]
clean up terminate_chunked test

14 years agoMake RNG work when we have arc4random() but not arc4random_buf()
Nick Mathewson [Sat, 13 Feb 2010 05:11:44 +0000 (00:11 -0500)]
Make RNG work when we have arc4random() but not arc4random_buf()

14 years agoUse off_t for the length parameter of evbuffer_add_file
Nick Mathewson [Sat, 13 Feb 2010 04:40:13 +0000 (23:40 -0500)]
Use off_t for the length parameter of evbuffer_add_file

14 years agoAdd an arc4random implementation for use by evdns
Nick Mathewson [Wed, 10 Feb 2010 22:19:18 +0000 (17:19 -0500)]
Add an arc4random implementation for use by evdns

Previously, evdns was at the mercy of the user for providing a good
entropy source; without one, it would be vulnerable to various
active attacks.

This patch adds a port of OpenBSD's arc4random() calls to Libevent
[port by Chris Davis], and wraps it up a little bit so we can use it
more safely.

14 years agoRemove the 'flags' argument from evdns_base_set_option()
Nick Mathewson [Fri, 5 Feb 2010 06:16:23 +0000 (01:16 -0500)]
Remove the 'flags' argument from evdns_base_set_option()

The 'flags' argument made sense when passed to
evdns_(base_)?parse_resolv_conf when it said which parts of the
resolv.conf file to obey.  But for evdns_set_option(), it was really
silly, since you wouldn't be calling evdns_set_option() unless you
actually wanted to set the option.  Its meaning was basically, "set
this to DNS_OPTIONS_ALL unless you want a funny surprise."

evdns_base_set_option was new in 2.0.1-alpha, so we aren't committed
to keeping it source-compatible.

14 years agoAlways use our own gai_strerror() replacement.
Nick Mathewson [Fri, 5 Feb 2010 18:50:51 +0000 (13:50 -0500)]
Always use our own gai_strerror() replacement.

This is necessary if we have any errors that the platform gai_strerror()
doesn't know how to handle.

14 years agoAdd a check to make soure our EVUTIL_AI flags do not conflict with the native ones
Nick Mathewson [Fri, 5 Feb 2010 06:09:01 +0000 (01:09 -0500)]
Add a check to make soure our EVUTIL_AI flags do not conflict with the native ones

14 years agoMerge remote branch 'niels/http_chunk'
Nick Mathewson [Thu, 4 Feb 2010 15:15:39 +0000 (10:15 -0500)]
Merge remote branch 'niels/http_chunk'

14 years agoFix some additional -DUNICODE issues on win32.
Nick Mathewson [Thu, 4 Feb 2010 04:49:22 +0000 (23:49 -0500)]
Fix some additional -DUNICODE issues on win32.

Brodie's patch didn't catch the ones that were new since 1.4.

14 years agoMake Libevent 1.4.12 build on win32 with Unicode enabled.
Brodie Thiesfield [Thu, 4 Feb 2010 04:27:40 +0000 (23:27 -0500)]
Make Libevent 1.4.12 build on win32 with Unicode enabled.

This patch fixes calls to the win32 api to explicitly call the char* versions
of the functions. This fixes build failures when libevent is built with the
UNICODE define.

14 years agomake evhttp_send() safe against terminated connections, too
Niels Provos [Thu, 4 Feb 2010 00:54:18 +0000 (16:54 -0800)]
make evhttp_send() safe against terminated connections, too

14 years agoMerge remote branch 'niels/http_chunk'
Nick Mathewson [Wed, 3 Feb 2010 22:52:55 +0000 (17:52 -0500)]
Merge remote branch 'niels/http_chunk'

14 years agodo not fail while sending on http connections the client closed.
Niels Provos [Wed, 3 Feb 2010 22:34:56 +0000 (14:34 -0800)]
do not fail while sending on http connections the client closed.

when sending chunked requests via multiple calls to evhttp_send_reply_chunk,
the client may close the connection before the server is done sending. this
used to cause a crash.

we introduce a new function evhttp_request_get_connection() that allows the
server to determine if the request is still associated with a connection.
If it's not, evhttp_request_free() needs to be called explicitly or the user
can call evhttp_send_reply_end() which just frees the request, too.

14 years agoAdd the rest of the integer limits, and add a test for them.
Nick Mathewson [Wed, 3 Feb 2010 22:01:45 +0000 (17:01 -0500)]
Add the rest of the integer limits, and add a test for them.

14 years agoMerge remote branch 'github/http_listener'
Nick Mathewson [Wed, 3 Feb 2010 21:25:34 +0000 (16:25 -0500)]
Merge remote branch 'github/http_listener'

Conflicts:
http.c

14 years agoFunctions to view and manipulate rate-limiting buckets.
Nick Mathewson [Wed, 3 Feb 2010 20:12:04 +0000 (15:12 -0500)]
Functions to view and manipulate rate-limiting buckets.

We need these for Tor, and other projects probably need them too.  Uses
include:
    - Checking whether bandwidth is mostly-used, and only taking some
      actions when there's plenty of bandwidth.
    - Deducting some non-bufferevent activities from a rate-limit group.

14 years agoAdd EV_*_MAX macros to event2/util.h to expose limits for ev_* types.
Nick Mathewson [Wed, 3 Feb 2010 19:37:42 +0000 (14:37 -0500)]
Add EV_*_MAX macros to event2/util.h to expose limits for ev_* types.

14 years agoReduce windows header includes in our own headers.
Nick Mathewson [Wed, 3 Feb 2010 07:09:19 +0000 (02:09 -0500)]
Reduce windows header includes in our own headers.

It turns out that absolutely everything that was including
windows.h was doing so needlessly; our headers don't need it,
so we should just include winsock2.h (since that's where
struct timeval is defined).

Pre-2.0 code will use the old headers, which include windows.h
for them, so we aren't breaking source compatibility with 1.4.

This solves the bug where we were leaving WIN32_LEAN_AND_MEAN
defined, in roughly the same way that buying an automobile
solves the question of what to give your coachman for boxing
day.

14 years agoFix a dumb typo in ev_intptr_t definitions.
Nick Mathewson [Wed, 3 Feb 2010 07:08:08 +0000 (02:08 -0500)]
Fix a dumb typo in ev_intptr_t definitions.

We said "#define ev_uintptr_t" twice instead of ever saying
"#define ev_intptr_t".

14 years agoAdd the msvc-generated .lib files to .gitignore.
Nick Mathewson [Wed, 3 Feb 2010 06:26:07 +0000 (01:26 -0500)]
Add the msvc-generated .lib files to .gitignore.

14 years agoRemove EVUTIL_CHECK_FMT.
Nick Mathewson [Wed, 3 Feb 2010 06:22:44 +0000 (01:22 -0500)]
Remove EVUTIL_CHECK_FMT.

This was never supposed to be an exposed API, so its name should have been
more like _EVUTIL_CHECK_FMT.  But it was only used in one place, so let's
just eliminate it.

14 years agoDeprecate EVENT_FD and EVENT_SIGNAL.
Nick Mathewson [Wed, 3 Feb 2010 06:16:47 +0000 (01:16 -0500)]
Deprecate EVENT_FD and EVENT_SIGNAL.

These are old aliases for event_get_fd and event_get_signal, and they
haven't been the preferred way of doing things since 2.0.1-alpha.

For a while, we made them use struct event if it was included, but call
event_get_(fd|signal) if it wasn't.  This was entirely too cute.

14 years agoconst-ify a few more functions in event.h
Nick Mathewson [Tue, 2 Feb 2010 20:44:10 +0000 (15:44 -0500)]
const-ify a few more functions in event.h

14 years agoUpdate time-test.c to use event2
Nick Mathewson [Wed, 27 Jan 2010 06:47:36 +0000 (01:47 -0500)]
Update time-test.c to use event2

time-test.c wasn't crazy, but it used some old interfaces.

There are probably more cleanups and explanations to do beyond the
ones here.

14 years agoClarify status of example programs
Nick Mathewson [Wed, 27 Jan 2010 06:46:41 +0000 (01:46 -0500)]
Clarify status of example programs

(That is, add comments to say that dns-example and le-proxy are recent and
ugly; event-test is old and ugly.)

14 years agoAdd a new "hello world" sample program
Nick Mathewson [Wed, 27 Jan 2010 06:46:23 +0000 (01:46 -0500)]
Add a new "hello world" sample program

14 years agoTry to fix a warning in hash_debug_entry
Nick Mathewson [Tue, 26 Jan 2010 17:08:34 +0000 (12:08 -0500)]
Try to fix a warning in hash_debug_entry

Apparently some 64-bit platforms don't like it when you say

   unsigned hash(void *p)
   {
      return (unsigned)p;
   }

even if you really honestly don't want the high bits of p.  Perhaps
they will tolerate it if I say the equivalent of

   unsigned hash(void *p)
   {
      return (unsigned) (uintptr_t) p;
   }

14 years agoUse ev_[u]intptr_t types in place of [u]intptr_t
Nick Mathewson [Tue, 26 Jan 2010 17:08:17 +0000 (12:08 -0500)]
Use ev_[u]intptr_t types in place of [u]intptr_t

14 years agoAdd ev_[u]intptr_t to include/event2/util.h
Nick Mathewson [Tue, 26 Jan 2010 17:06:41 +0000 (12:06 -0500)]
Add ev_[u]intptr_t to include/event2/util.h

We already emulate most of the other useful bits of stdint.h, and
we seem to have started to use uintptr_t in a few places throughout
the code.  Let's make sure we can continue to do so even on backwards
platforms that don't do C99.

14 years agoTry to untangle the logic in server_port_flush().
Nick Mathewson [Mon, 25 Jan 2010 19:07:01 +0000 (14:07 -0500)]
Try to untangle the logic in server_port_flush().

The logic that prevented the first loop in this function from being
infinite was rather confusing and hard to follow.  It seems to confuse
some automatic analysis tools as well as me.  Let's try to replace it
with something more comprehensible.

14 years agoNote a missing ratelim function
Nick Mathewson [Mon, 25 Jan 2010 18:54:14 +0000 (13:54 -0500)]
Note a missing ratelim function

14 years agoUse less memory for each entry in a hashtable
Nick Mathewson [Mon, 25 Jan 2010 18:44:56 +0000 (13:44 -0500)]
Use less memory for each entry in a hashtable

Our hash-table implementation stored a copy of the hash code in each
element.  But as we were using it, all of our hash codes were
ridiculously easy to calculate: most of them were just a matter of a
load and a shift.

This patch lets ht-internal be built in either of two ways: one caches
the hash-code for each element, and one recalculates it each time it's
needed.

This patch also chooses a slightly better hash code for
event_debug_entry.

14 years agoCall event_debug_unassign on internal events
Nick Mathewson [Mon, 25 Jan 2010 18:38:07 +0000 (13:38 -0500)]
Call event_debug_unassign on internal events

I don't expect that many users will be so religious about calling
unassign, but we need to be so that it's at least possible to use
debug mode without eating memory.

14 years agoAdd support for a "debug mode" to try to catch common errors.
Nick Mathewson [Fri, 22 Jan 2010 05:34:37 +0000 (00:34 -0500)]
Add support for a "debug mode" to try to catch common errors.

Right now it only catches cases where we aren't initializing events,
or where we are re-initializing events without deleting them first.
These are however shockingly common.

14 years agoRemove a needless include of rpc_compat.h
Nick Mathewson [Sat, 23 Jan 2010 21:47:54 +0000 (16:47 -0500)]
Remove a needless include of rpc_compat.h

Nothing in evrpc.c was using rpc_compat.h, so it's best to take it
out, especially since it polluted our build process with GCC variadic
macros.

While we're at it, this patch puts an extra restriction on when the
variadic macros in rpc_compat.h are defined.  Not only must GCC be the
compiler, but GCC must not be running in -ansi mode.

14 years agoFix windows and msvc build
Nick Mathewson [Sun, 24 Jan 2010 01:07:05 +0000 (20:07 -0500)]
Fix windows and msvc build

14 years agoMinimize epoll_ctl calls by using changelist
Nick Mathewson [Sat, 16 Jan 2010 20:24:58 +0000 (15:24 -0500)]
Minimize epoll_ctl calls by using changelist

The logic here is a little complex, since epoll_add must used called exactly
when no events were previously set, epoll_mod must be used when any events
were previously set, and epoll_del only called when the removing all events.

14 years agoFix a number of warnings from gcc -pedantic
Nick Mathewson [Sat, 23 Jan 2010 21:38:36 +0000 (16:38 -0500)]
Fix a number of warnings from gcc -pedantic

14 years agoMake it compile under gcc --std=c89.
Nick Mathewson [Sat, 23 Jan 2010 21:23:45 +0000 (16:23 -0500)]
Make it compile under gcc --std=c89.

14 years agoCheck more internal event_add() calls for failure
Nick Mathewson [Fri, 22 Jan 2010 21:14:49 +0000 (16:14 -0500)]
Check more internal event_add() calls for failure

Most of these should be unable to fail, since adding a timeout
generally always works.  Still, it's better not to try to be "too
smart for our own good here."

There are some remaining event_add() calls that I didn't add checks
for; I've marked those with "XXXX" comments.

14 years agoDetect setenv/unsetenv; skip main/base_environ test if we can't fake them.
Nick Mathewson [Tue, 29 Dec 2009 21:38:03 +0000 (16:38 -0500)]
Detect setenv/unsetenv; skip main/base_environ test if we can't fake them.

Previously, we assumed that we would have setenv/unsetenv everywhere
but WIN32, where we could fake them with putenv.  This isn't so: some
other non-windows systems lack setenv/unsetenv, and some of them lack
putenv too.

The first part of the solution, then, is to detect setenv/unsetenv/
putenv from configure.in, and to fake setenv/unsetenv with putenv
whenever we have the latter but not one of the former.

But what should we do when we don't even have putenv?  We could do
elaborate tricks to manipulate the environ pointer, but since we're
only doing this for the unit tests, let's just skip the one test in
question that uses setenv/unsetenv.

14 years agoFix compilation of rate-limit code when threading support is disabled
Nick Mathewson [Fri, 22 Jan 2010 05:34:21 +0000 (00:34 -0500)]
Fix compilation of rate-limit code when threading support is disabled

14 years agoRemove some commented-out code in evutil
Nick Mathewson [Thu, 21 Jan 2010 06:51:40 +0000 (01:51 -0500)]
Remove some commented-out code in evutil

14 years agoDon't use a bind address for nameservers on loopback
Nick Mathewson [Wed, 20 Jan 2010 17:56:54 +0000 (12:56 -0500)]
Don't use a bind address for nameservers on loopback

If the user sets a bind address to use for nameservers, and a
nameserver happens to be on 127.0.0.1, the nameserver will generally
fail.  This patch alters this behavior so that the bind address is
only applied when the nameserver is on a non-loopback address.

14 years agoFunctions to access more fields of struct event.
Nick Mathewson [Tue, 19 Jan 2010 19:01:36 +0000 (14:01 -0500)]
Functions to access more fields of struct event.

Once event_assign() or event_new() had been called, there was no way
to get at a copy of the event's callback, callback argument, or
configured events.  This patch adds an accessor function for each, and
an all-fields accessor for code that wants to re-assign one field of
an event.

This patch also adds a function to return sizeof(struct event), so
that code with intense RAM needs can still retain ABI compatibility
between versions of Libevent without having to heap-allocate every
struct event individually.

The code here was first proposed by Pavel Pisa.

14 years agoAdd a LICENSE file so people can find our license easily
Nick Mathewson [Tue, 19 Jan 2010 18:55:53 +0000 (13:55 -0500)]
Add a LICENSE file so people can find our license easily

For what it's worth, we are aware that "Copyright $YEAR $NAME" is
sufficient notice of copyright on software under US law and
Internationally, and saying Copyright (c) $YEAR $NAME is a bit nutty.
The character sequence (c) has never been ruled to have the same force
in US law as the actual copyright symbol, and that neither of these
US-specific symbols adds anything of value beyond saying "Copyright"
since the Berne convention took effect in the US back in 1989.

Similarly, saying "all rights reserved" doesn't do anything magical
unless your software goes in a time-warp back to when the Buenos Aires
Convention was the general rule.  (And what will they run it on back
then?)  And what would even lead you to say "All Rights Reserved" when
you're explicitly granting most of those rights to anybody receiving
the work in accordance with the 3-clause BSD license?

But still the FOSS community retains these ritual notations out of a
kind of cargo-cult lawyering.  Who knows?  Perhaps one day, if we
write our copyright notices ineptly enough, John Frum will come and
give us a DFSG-compatible license that everybody can get behind.

(Also, I am not a lawyer.  The above should not be taken as legal
advice.  -- Nick)

14 years agoAdd a forgotten header (changelist-internal.h)
Nick Mathewson [Fri, 15 Jan 2010 15:26:25 +0000 (10:26 -0500)]
Add a forgotten header (changelist-internal.h)

14 years agoMerge commit 'niels/http_dns'
Nick Mathewson [Fri, 15 Jan 2010 04:28:16 +0000 (23:28 -0500)]
Merge commit 'niels/http_dns'

14 years agoforgot to add void to test function
Niels Provos [Fri, 15 Jan 2010 01:39:54 +0000 (17:39 -0800)]
forgot to add void to test function

14 years agoadd a test for evhttp_connection_base_new with a dns_base
Niels Provos [Fri, 15 Jan 2010 01:05:00 +0000 (17:05 -0800)]
add a test for evhttp_connection_base_new with a dns_base

14 years agomove dns utility functions into a separate file so that we can use them for http...
Niels Provos [Fri, 15 Jan 2010 00:53:25 +0000 (16:53 -0800)]
move dns utility functions into a separate file so that we can use them for http testing

14 years agodo not use a function to assign the evdns base; instead assign it via evhttp_connecti...
Niels Provos [Thu, 14 Jan 2010 23:42:07 +0000 (15:42 -0800)]
do not use a function to assign the evdns base; instead assign it via evhttp_connection_base_new() which is a new function introduced in 2.0