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296 Commits

Author SHA1 Message Date
Nick Mathewson
e3d82497c9 Don't allow internal events to starve lower-priority events. 
This is exceptionally important with multithreaded stuff, where we use
an event to notify the base that other events have been made active.
If the activated events have a prioirty number greater than that of the
notification event, it will starve them, and that's no good.

svn:r1149
 2009-04-10 14:21:53 +00:00
Niels Provos
ce146eb1cb Fix parsing of queries where the encoded queries contained \r, \n or + 
svn:r1148
 2009-04-10 05:43:45 +00:00
Nick Mathewson
72b6ffe869 Prevent unsupported modifications to bufferevent_sock buffers. 
In particular, we don't allow adding any data to end front of inbuf
(we do that when we read), or removing it from the front of outbuf (we
drain data only when we write).

svn:r1144
 2009-04-08 03:05:42 +00:00
Nick Mathewson
747331d164 Add freeze support to evbuffers. 
From the documentation:
   Prevent calls that modify an evbuffer from succeeding. A buffer may
   frozen at the front, at the back, or at both the front and the back.

   If the front of a buffer is frozen, operations that drain data from
   the front of the buffer, or that prepend data to the buffer, will
   fail until it is unfrozen.   If the back a buffer is frozen, operations
   that append data from the buffer will fail until it is unfrozen.

We'll use this to ensure correctness on an evbuffer when we're waiting
for an overlapped IO call to finish.

svn:r1143
 2009-04-08 03:04:39 +00:00
Nick Mathewson
77c80b8dcf New bind-to option to allow DNS clients to bind to arbitrary ports for their outgoing addresses. 
svn:r1119
 2009-02-11 17:24:11 +00:00
Nick Mathewson
c7b2f8fdc9 New function to abstract SO_REUSEADDR. 
svn:r1102
 2009-02-10 19:38:05 +00:00
Niels Provos
fdf694933c sendfile/mmap and memory reference implementation for evbuffers 
svn:r1057
 2009-01-27 06:05:38 +00:00
Niels Provos
56ea4687a5 Change the semantics of timeouts in conjunction with EV_PERSIST; timeouts in that case will now repeat until deleted. 
svn:r1032
 2009-01-22 02:33:38 +00:00
Nick Mathewson
309fc7c4ad New functions to provide sane threading callbacks with pthreads and win32 threading implementations. 
svn:r1031
 2009-01-21 07:51:25 +00:00
Nick Mathewson
f6eb1f816c Change evbuffer_read implementation to split data across chunks, and use readv when available. This should make us use less space. 
svn:r1024
 2009-01-19 21:53:03 +00:00
Nick Mathewson
a5901991c7 Use eventfd for main-thread notification where available (i.e., linux). 
svn:r1023
 2009-01-19 20:37:24 +00:00
Nick Mathewson
99db0e7f72 Add a new evbuffer_write_atmost() functino to write no more than a given number of bytes to an fd. 
svn:r993
 2009-01-12 20:42:19 +00:00
Nick Mathewson
135591aeab Change the type of nameserver.address from u32 to sockaddr_storage, so that we can handle nameservers at IPv6 addresses. 
svn:r985
 2009-01-02 20:46:35 +00:00
Nick Mathewson
0d9d5cfe22 New functions in evutil to clone inet_pton and inet_ntop, with tests. 
Adapted from Tor code.

svn:r983
 2009-01-02 20:46:12 +00:00
Niels Provos
02b2b4d1be Restructure the event backends so that they do not need to keep track of events themselves, as a side effect multiple events can use the same fd or signal. 
svn:r972
 2008-12-23 16:37:01 +00:00
Niels Provos
f700566cb9 Make the http connection close detection work properly with bufferevents and fix a potential memory leak associated with it 
svn:r963
 2008-12-19 21:31:43 +00:00
Nick Mathewson
dd73168556 Implement increased DSN-poisoning resistance via the 0x20 hack. 
svn:r958
 2008-12-03 20:09:13 +00:00
Niels Provos
4fa4a56253 fix a typo in setting the global event base; reported by lance 
svn:r953
 2008-11-27 19:57:48 +00:00
Niels Provos
4fe25cefb5 Clear the timer cache when leaving the event loop; reported by Robin Haberkorn 
svn:r950
 2008-11-27 19:27:33 +00:00
Niels Provos
5792d42f0f Allow setting of local port for evhttp connections to support millions of connections from a single system; from Richard Jones 
svn:r948
 2008-11-16 23:22:14 +00:00
Niels Provos
50202d757d only bind the socket on connect when a local address has been provided; reported by Ajejo Sanchez 
svn:r946
 2008-11-15 05:27:23 +00:00
Niels Provos
31cfe52662 clear the timer cache on entering event loop; reported by Victor Chang 
svn:r944
 2008-10-30 19:38:31 +00:00
Niels Provos
b3d6a569e7 do not remove accept-encoding header in make request 
svn:r938
 2008-09-07 23:24:54 +00:00
Nick Mathewson
de069b9977 On win32, errno is not the last socket error. Worse, WSAGetLastError() is not the last socket error sometimes (i.e., EWOULDBLOCK). Also, strerror() does not handle winsock errors. Therefore, event_err() and event_warn() are completely wrong for windows socket errors. Fix that. 
svn:r936
 2008-09-05 16:29:56 +00:00
Niels Provos
a710d817ad Match the query in DNS replies to the query in the request; from Vsevolod Stakhov 
svn:r930
 2008-08-30 23:19:49 +00:00
Niels Provos
c968eb3e01 Fix a bug where headers arriving in multiple packets were not parsed; fix from Jiang Hong; test by me. 
svn:r928
 2008-08-19 11:26:47 +00:00
Niels Provos
cca2f8fa0e make event_add not change any state if it fails; repoted by Ian Bell 
svn:r923
 2008-07-25 01:29:54 +00:00
Niels Provos
1aa6826f62 fix off by one errors in devpoll; from Ian Bell 
svn:r921
 2008-07-25 01:18:40 +00:00
Niels Provos
e67a5ea9bb fix a problem with epoll and event_reinit; reported by Alexander Drozdov 
svn:r917
 2008-07-25 00:19:15 +00:00
Niels Provos
c4af6211bd forgot to add Alexander Drozdov as bug reporter in ChangeLog 
svn:r905
 2008-07-11 16:11:16 +00:00
Niels Provos
f7e61870e9 support multiple events listening on the same signal; make signals regular events that go on the same event queue 
svn:r901
 2008-07-11 15:49:04 +00:00
Niels Provos
5512be0176 fix a bug where deleting signals with kqueue would delete subsequent adds 
svn:r899
 2008-07-11 15:15:04 +00:00
Niels Provos
df97fca9ca From Scott Lamb: 
* Allow the user to set the Content-Length: then stream a reply.
  This is useful for large requests of a known size. Added unit test.

* Don't send a response body on HEAD requests, 1xx status codes, 204
  status codes, or 304 status codes, as described in RFC 2616 section
  4.3. (Doing otherwise causes problems - in particular, if a 304 has a
  chunked body (even an empty one), Safari 3.1.1 issues and then fails
  the next request on the connection with the non-sequitur error message
  "Too many HTTP redirects"!)

* Specify a default Content-Type: when a response body is required, not
  when we have data in the response buffer by the time we make the
  header. (I.e., do this on evhttp_send_reply_start() for consistency.)

* Don't expect a body in response to HEAD requests.



svn:r898
 2008-07-02 06:08:16 +00:00
Niels Provos
409236a77d detect CLOCK_MONOTONIC at runtime for evdns 
svn:r896
 2008-07-02 04:39:09 +00:00
Niels Provos
707f67849a reject negative content-length headers 
svn:r894
 2008-07-02 04:22:48 +00:00
Niels Provos
cb7c3bd671 support multi-line http headers; based on a patch from Moshe Litvin 
svn:r890
 2008-06-29 01:30:06 +00:00
Niels Provos
9998c0cbc8 correct handling of trailing headers in chunked replies; from Scott Lamb. 
svn:r887
 2008-06-26 00:40:57 +00:00
Niels Provos
99a1063e73 support 64-bit integers in rpc structs 
svn:r856
 2008-06-21 02:21:25 +00:00
Niels Provos
4c56ba1ced do not use SO_REUSEADDR when connecting 
svn:r854
 2008-06-20 06:52:13 +00:00
Nick Mathewson
2baaac7fdb Forward-port: Rename INPUT and OUTPUT to EVRPC_INPUT and EVRPC_OUTPUT, but keep the INPUT/OUTPUT aliases on non-win32 platforms to maintain backwards compatibility. 
svn:r852
 2008-06-14 17:50:36 +00:00
Niels Provos
a6ce520cfb allow min_heap_erase to be called on removed members; from liusifan 
svn:r849
 2008-06-12 14:43:35 +00:00
Niels Provos
344c2b56f1 deliver partial data to request callbacks when chunked callback is set even if there is no chunking on the http level; allows cancelation of requests from within the chunked callback; from Scott Lamb. 
svn:r846
 2008-06-02 05:45:26 +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
Nick Mathewson
9ca7a3a3d6 Resolve two conflicts. 
svn:r839
 2008-05-30 16:19:01 +00:00
Niels Provos
2deb3ce061 simplify handling of environment variables for disabling backends; 
make event_get_supported_methods obey environment variables; this
fixes make verify; problem reported by Scott Lamb.


svn:r838
 2008-05-29 01:39:43 +00:00
Niels Provos
8b66f1bd4d constify struct timeval * 
svn:r836
 2008-05-17 02:14:17 +00:00
Niels Provos
134344b79e Fix use of freed memory in event_reinit; pointed out by Peter Postma 
svn:r834
 2008-05-16 01:55:40 +00:00
Niels Provos
ec3956ba48 fix connection keep-alive behavior for HTTP/1.0 
svn:r822
 2008-05-15 01:53:48 +00:00
Nick Mathewson
c6da86ffcb r19709@catbus: nickm | 2008-05-12 12:42:48 -0400 
Possible fix for [1960723] snprintf and vsnprintf return values are wrong on win32


svn:r813
 2008-05-12 16:44:24 +00:00