ChangeLog revision 275970
1275970ScyChanges in version 2.1.4-beta (?? Dec 2013) 2275970Scy 3275970Scy (As of 735d838b0a537ae04f1e6a2e9cbc5f3f45ebb541) 4275970Scy 5275970Scy 6275970Scy Bugfixes (evdns) 7275970Scy o Checking request nameserver for NULL, before using it. (5c710c0 8275970Scy Belobrov Andrey) 9275970Scy o Fix SEGFAULT after evdns_base_resume if no nameservers installed. (14971a8 10275970Scy Azat Khuzhin) 11275970Scy o Actually use the log facility for reporting evdns problems. (e1766a1) 12275970Scy o Fix SEGFAULT after evdns_base_resume if no nameservers installed. (f8d7df8 Azat Khuzhin) 13275970Scy 14275970Scy Bugfixes (compilatin) 15275970Scy o Fix test compilation with nmake: add the gdi.lib dependency (5ba8ab7) 16275970Scy o Whoops. It is gdi.lib, not gdi32.lib. (github issue #61) (8ab612e) 17275970Scy o Don't use return since return type is void and build error occurs using clang (838161d Makoto Kato) 18275970Scy o Use void casts to suppress some "unchecked return value" warns (7080d55) 19275970Scy o rpcgen: Generate regress.gen.[c,h] in build rather than src dir (243386c Ross Lagerwall) 20275970Scy o Fix a compiler warning when checking for arc4random_buf linker breakage. (5cb3865) 21275970Scy 22275970Scy Bugfixes (locks, synchronization) 23275970Scy o Missed lock acquire/release in event_base_cancel_single_callback_() 24275970Scy (d3d999a Azat Khuzhin) 25275970Scy o Fix locking in bufferevent_get_options_(). (dbc9cd4 Maxime Henrion) 26275970Scy 27275970Scy Bugfixes (leaks) 28275970Scy o Avoid leaking segment mappings when offset is not a page multiple (d409514) 29275970Scy 30275970Scy Testing 31275970Scy o Add tests for evdns_base_resume(). (1cd9ff5 Azat Khuzhin) 32275970Scy o Fix dns/leak_resume_send_err test. (7e876df Azat Khuzhin) 33275970Scy o Add checks for evhttp_connection_get_server() in unit tests. (fbc323b Maxime Henrion) 34275970Scy o Fix a (failure-only) null dereference in the unit tests (1104d0b) 35275970Scy o Fix a logic error in test_evbuffer_freeze (7765884) 36275970Scy o Add missing check to test_evbuffer_file_segment_add_cleanup_cb (eba4506) 37275970Scy o Fix some crash-on-fail cases in DNS regression tests (87cd6f0) 38275970Scy o DNS tests: add a missing check (f314900) 39275970Scy o Finalize tests: add a missing check (82b6956) 40275970Scy o test_evutil_rtrim: add another missing check. (e193c95) 41275970Scy o regress_main: logging all if env EVENT_DEBUG_LOGGING_ALL isset (611e28b Azat Khuzhin) 42275970Scy o regress_http: add tests for evhttp_connection_get_addr() (4dd500c Azat Khuzhin) 43275970Scy 44275970Scy Bugfixes (core) 45275970Scy o If evsel->del() fails, don't leave the evmap in an inconsistent state 46275970Scy (9b5a527 Maxime Henrion) 47275970Scy o Move event_debug_note_teardown_ before mm_free. (69b5c64) 48275970Scy o Check CLOCK_MONOTONIC_* at runtime if needed. (911abf3) 49275970Scy o Fix reinit of fds with EV_WRITE but not EV_READ. (ebfd8a8 maksqwe) 50275970Scy 51275970Scy Performance tweaks (core) 52275970Scy o Avoid redundant syscall to make a nonblocking socket nonblocking 53275970Scy (42c03da Maxime Henrion) 54275970Scy o Avoid redundant syscall if making a socket cloexec twice (1f29b18) 55275970Scy o Avoid redundant invocations of init_extension_functions for IOCP (3b77d62) 56275970Scy 57275970Scy Bugfixes (evhttp) 58275970Scy o Fix a double close() bug in evhttp when the underlying bufferevent uses 59275970Scy BEV_OPT_CLOSE_ON_FREE. (31db8a0 Maxime Henrion) 60275970Scy o Fix an unlikely but possible error case for http connections (f22049e) 61275970Scy o Avoid racy bufferevent activation (5eb1788 Nate Rosenblum) 62275970Scy 63275970Scy Bugfixes on 2.0 (Windows) 64275970Scy o Use windows vsnprintf fixup logic on all windows environments (e826f19) 65275970Scy o libevent/win32_dealloc() : fix sizeof(pointer) vs sizeof(*pointer) (b8f5980 Frank Denis) 66275970Scy 67275970Scy Bugfixes (evutil_secure_rng) 68275970Scy o When we seed from /proc/sys/kernel/random/uuid, count it as success (e35b540) 69275970Scy o We should return after arc4random_buf() (1ea1f26 Makoto Kato) 70275970Scy o Avoid other RNG initialization FS reads when urandom file is specified (9695e9c) 71275970Scy o Really remove RNG seeds from the stack (f5ced88) 72275970Scy o Fix another arc4random_buf-related warning (e64a2b0) 73275970Scy 74275970Scy New APIs (core) 75275970Scy o Added event_base_get_num_events() (0fa107d Mobai Zhang) 76275970Scy o Add function to fetch underlying ratelimit cfg (4b3d5af Mark Ellzey) 77275970Scy o Pass and return const for bufferevent_get_token_bucket_cfg (1c77fbb Mark Ellzey) 78275970Scy 79275970Scy New APIs (evhttp) 80275970Scy o Add evhttp_connection_get_server(). (a7f82a3 Maxime Henrion) 81275970Scy o add a http default content type option (5a5acd9 Nicolas Martyanoff) 82275970Scy o http: implement new evhttp_connection_get_addr() api. (0c7f040 Azat Khuzhin) 83275970Scy 84275970Scy 85275970Scy Documentation 86275970Scy o Document that arc4random is not a great cryptographic PRNG. (6e49696) 87275970Scy o Small doxygen tweaks (6e67b51) 88275970Scy o Try another doxygen tweak (ccf432b) 89275970Scy 90275970Scy New APIs (evutil_secure_rng) 91275970Scy o Add evutil_secure_rng_set_urandom_device_file (2bbb5d7) 92275970Scy 93275970Scy Cleanups 94275970Scy o Remove an unreachable return statement in minheap-internal.h (e639a9e) 95275970Scy 96275970Scy Sample code 97275970Scy o sample/le-proxy: Fail more gracefully if opening listener fails (44b2491) 98275970Scy o sample: drop uri_root from base_url in http-server. (6171e1c Azat Khuzhin) 99275970Scy 100275970Scy 101275970Scy 102275970Scy 103275970Scy 104275970Scy 105275970Scy 106275970Scy 107275970Scy 108275970Scy 109275970Scy 110275970ScyChanges in version 2.1.3-alpha (1 May 2013) 111275970Scy 112275970Scy Libevent 2.1.3-alpha fixes various bugs, adds new unit tests, and cleans 113275970Scy up the code in a couple of places. It has a new callback in evhttp for 114275970Scy reporting errors during a request, a new feature for allowing evdns to 115275970Scy not keep the event_base looping when there are no requests inflight, and 116275970Scy example code for writing an https client. 117275970Scy 118275970Scy Libevent 2.1.3-alpha also has an important new (experimental) event 119275970Scy finalization feature to allow safe event teardown in multithreaded 120275970Scy programs. This ought to fix the longstanding bug with deadlocks in 121275970Scy multithreaded use of SSL-based bufferevents that some people have been 122275970Scy experiencing since Libevent 2.0. 123275970Scy 124275970Scy 125275970Scy Core (event finalization) 126275970Scy o Implement event_finalize() and related functions to avoid certain 127275970Scy deadlocks (8eedeab) 128275970Scy o Use finalization feature so bufferevents can avoid deadlocks (02fbf68) 129275970Scy o Always run pending finalizers when event_base_free() is called (e9ebef8) 130275970Scy o Remove bufferevent_del_generic_timeout_cbs as now unused (4ea4c6a) 131275970Scy o More documentation for finalization feature (a800b91) 132275970Scy o Make the event_finalize* functions return an error code (5d11f4f) 133275970Scy o Mark the finalize stuff as experiemental in case it needs to 134275970Scy change (23e2e29) 135275970Scy 136275970Scy Evdns 137275970Scy o evdns: New flag to make evdns not prevent the event loop from 138275970Scy exiting (6b7fa62 Azat Khuzhin) 139275970Scy 140275970Scy Bugfixes (Core) 141275970Scy o Make event_remove_timer behave correctly with persistent timers (5623e80) 142275970Scy o Unit test for event_remove_timer with EV_PERSIST. (96150dd) 143275970Scy o Double-check next timeout when adding events (9443868 Nate Rosenblum) 144275970Scy o event_base_update_cache_time should be a no-op if the loop isn't 145275970Scy running (5e6fa2a) 146275970Scy 147275970Scy Bugfixes (evhttp, crash fix, from 2.0) 148275970Scy o fix #73 and fix http_connection_fail_test to catch it (b618204 Greg Hazel) 149275970Scy 150275970Scy Bugfixes (compilation and portability, from 2.0) 151275970Scy o Fix compilation with WIN32_HAVE_CONDITION_VARIABLES enabled (7e45739) 152275970Scy o Fix missing AC_PROG_SED on older Autoconfs (9ab2b3f Tay Ray Chuan) 153275970Scy o Backport libevent to vanilla Autoconf 2.59 (as used in RHEL5) 154275970Scy (74d4c44 Kevin Bowling) 155275970Scy o Use AC_CONFIG_HEADERS in place of AM_CONFIG_HEADERS for autmake 156275970Scy 1.13 compat (817ea36) 157275970Scy o Rename configure.in to configure.ac to appease newer autoconfs (0c79787) 158275970Scy o Avoid using top_srcdir in TESTS: new automakes do not like this (a55514e) 159275970Scy 160275970Scy Bugfixes (resource leaks/lock errors on error, from 2.0) 161275970Scy o Avoid leaking fds on evconnlistener with no callback set (69db261) 162275970Scy o Avoid double-close on getsockname error in evutil_ersatz_socketpair 163275970Scy (0a822a6) 164275970Scy o Fix a locking error in bufferevent_socket_get_dns_error. (0a5eb2e) 165275970Scy 166275970Scy Documentation Fixes (from 2.0) 167275970Scy o Fix a mistake in evbuffer_remove() arguments in example http server code 168275970Scy (c322c20 Gyepi Sam) 169275970Scy o Fix a typo in a comment in buffer.h. Spotted by Alt_F4 (773b0a5) 170275970Scy 171275970Scy Documentation Fixes 172275970Scy o minor documentation typos (809586a Patrick Pelletier) 173275970Scy o Fix cut-and-paste err in whatsnew-2.1 (49905ac) 174275970Scy o Fix comment to refer to sample/include.am correctly (9e8cdf3 Sebastian 175275970Scy Hahn) 176275970Scy o Fix typo : Dispatching instead of Dispaching (0c2bacc Volker Lendecke) 177275970Scy o fix some hinky indentation in evhttp_make_request (80e220e Patrick 178275970Scy Pelletier) 179275970Scy o "buffer" spelling (a452811 Patrick Pelletier) 180275970Scy o Specify return behavior in header for evbuffer_pullup() in corner case 181275970Scy (cf8d1cd Dan Petro) 182275970Scy o Clarify an important point about event_base_foreach_event() (920a5e6) 183275970Scy 184275970Scy Compilation Fixes/Tool Support 185275970Scy o avoid valgrind false positive by zeroing epoll_event (1258614 Patrick 186275970Scy Pelletier) 187275970Scy o Fix harmless clang enum warning (b452a43 Sebastian Hahn) 188275970Scy o remove all exes on "make clean", not just regress.exe (974bfa0 Patrick 189275970Scy Pelletier) 190275970Scy o Make --disable-libevent-regress work again (787fd74) 191275970Scy o Do not build strlcpy.c when it will have no code. (4914620) 192275970Scy 193275970Scy Portability Fixes 194275970Scy o When EWOULDBLOCK is not EAGAIN, treat it as equivalent to it (bf7a0ff) 195275970Scy o Preliminary changes for Minix3. (0dda56a Nicholas Heath) 196275970Scy o Use AC_CONFIG_HEADERS in place of AM_CONFIG_HEADERS for autmake 1.13 197275970Scy compat (bf278b) 198275970Scy o Avoid using $(top_srcdir) in TESTS. (2863c83) 199275970Scy o build test/test-script.sh on systems with a less-featureful $< (f935e21) 200275970Scy o Implement EVUTIL_ERR_IS_EAGAIN on windows. (42aaf4d) 201275970Scy 202275970Scy Evhttp changes: 203275970Scy o Fix ipv6 support for http. When URL contain domain, not IP 204275970Scy address. (71e709c Azat Khuzhin) 205275970Scy o uri decode: fix for warning "use of uninitialised value" (64b6ece Azat 206275970Scy Khuzhin) 207275970Scy o uri decode: changed the test for the existence of the next character 208275970Scy (e1903e3 Azat Khuzhin) 209275970Scy o Move prototype of evhttp_decode_uri_internal() to http-internal.h 210275970Scy (de8101a Azat Khuzhin) 211275970Scy o Test: decoding just part of string with evhttp_decode_uri_internal() 212275970Scy (1367653 Azat Khuzhin) 213275970Scy o Add new error_cb for actual reporting of HTTP request errors. (7b07719 214275970Scy Azat Khuzhin) 215275970Scy o Add test for EVREQ_HTTP_REQUEST_CANCEL into http_cancel_test() (862c217 216275970Scy Azat Khuzhin) 217275970Scy o Drop extra header http_struct.h from regress_http.c (54cc800 Azat Khuzhin) 218275970Scy 219275970Scy Testing 220275970Scy o Add regress test ipv6_for_domain. (9ec88bd Azat Khuzhin) 221275970Scy o Add an environment variable (EVENT_DEBUG_MODE) to run unit tests in debug 222275970Scy mode (2fad0f3) 223275970Scy o Add a test with an active_later event at event_base_free time. (1c3147f) 224275970Scy o Make all tests pass under EVENT_DEBUG_MODE=1 (b1b054f) 225275970Scy o Add some verbose notes to bufferevent unit tests (9d893c9) 226275970Scy o New test for active_later->active transition on event_active (a153874) 227275970Scy o New tests for event_base_foreach_event() (0b096ef) 228275970Scy o Unit tests for event_base_gettimeofday_cached() and 229275970Scy event_base_update_cache_time() (30ea291) 230275970Scy o A test for event_get_assignment() (f09629e) 231275970Scy o More unit tests for initializing common timeouts. (d596739) 232275970Scy o Fix a bug in the new main/event_foreach test (702c9aa) 233275970Scy 234275970Scy Windows: 235275970Scy o use FormatMessage for winsock errors (0c6ec5d, 2078e9b, 4ccdd53, c9ad3af 236275970Scy Patrick Pelletier) 237275970Scy o a program to print out the error strings for winsock errors (7296512 238275970Scy Patrick Pelletier) 239275970Scy o Fix a warning introduced in 0c6ec5d8 (eeb700c) 240275970Scy o Fix another warning introduced in 0c6ec5d8 (ed26561) 241275970Scy 242275970Scy Examples (http) 243275970Scy o Add sample/https-client.c, an example of stacking evhttp as a client on 244275970Scy top of bufferevent_ssl. (be46c99 Catalin Patulea) 245275970Scy o use ${OPENSSL_LIBS} instead of -lssl -lcrypto (bf31fa5 Patrick Pelletier) 246275970Scy o https-client was putting newlines at 256-byte boundaries (42d7441 Patrick 247275970Scy Pelletier) 248275970Scy o better handling of OpenSSL errors (5754d96 Patrick Pelletier) 249275970Scy o use Debian's default root certificate location (aacd674 Patrick Pelletier) 250275970Scy o use iSECPartners code to validate hostname in certificate (64d9f16 251275970Scy Patrick Pelletier) 252275970Scy o avoid sign mismatch warning in openssl_hostname_validation.c (6021cb5 253275970Scy Patrick Pelletier) 254275970Scy o pull in wildcard matching code from cURL (4db9da6 Patrick Pelletier) 255275970Scy o Another tweak to https-client.c (95acdaa) 256275970Scy o Remove http_struct.h usage in sample/https-client.c (8a90a85) 257275970Scy 258275970Scy 259275970Scy 260275970ScyChanges in version 2.1.2-alpha (18 Nov 2012) 261275970Scy 262275970Scy Libevent 2.1.2-alpha includes more portable for monotonic timers, 263275970Scy refactors much of Libevent's internal and external infrastructure, 264275970Scy closes some longstanding gaps in the interface, makde other 265275970Scy improvements. Ths log below tries to organize features by rough area of 266275970Scy effect. It omits a few commits which were pure bugfixes on other commits 267275970Scy listed below. For more detail, see the git changelogs. For more 268275970Scy insight, see the "whatsnew-2.1.txt" document included in the Libevent 269275970Scy 2.1.2-alpha distribution. 270275970Scy 271275970Scy Libevent 2.1.2-alpha also includes all changes made in 2.0.19-stable 272275970Scy through 2.0.21-stable inclusive. 273275970Scy 274275970Scy Performance (core): 275275970Scy o Replace pipe-based notification with EVFILT_USER where possible. This 276275970Scy should make multithreaded programs on OSX and *BSD alert the main thread a 277275970Scy little faster. (53a07fe) 278275970Scy o Make th_base_lock nonrecursive. (9cd5acb) 279275970Scy 280275970Scy New/Changed API Functions: 281275970Scy o New event_get_priority() function to return an event's priority (f90e255) 282275970Scy o Add a bufferevent_get_priority() function (bd39554) 283275970Scy o Add an event_base_loopcontinue() to tell Libevent to rescan for more 284275970Scy events right away (7d6aa5e) 285275970Scy o Add a new callback to get called on evbuffer_file_segment free 286275970Scy (e9f8feb yangacer, 64051b9) 287275970Scy o Expose event_base_foreach_event() as a public API. (84fd6d7 Roman 288275970Scy Puls, 232055e, ffe1643) 289275970Scy o Add an event_remove_timer() to remove timer on an event without 290275970Scy deleting it (e3b2e08) 291275970Scy o Make bufferevent_set_timeouts(bev, NULL, NULL) have plausible 292275970Scy semantics (9dee36b) 293275970Scy o Rename event_enable_lock_debuging() to ..._debugging(). (The old name 294275970Scy should still work.) (07e132e) 295275970Scy o Add missing implementation for event_enable_debug_logging (3b3e21d) 296275970Scy 297275970Scy PORTABLE MONOTONIC TIMERS: 298275970Scy 299275970Scy Libevent 2.1.2 includes internal support for monotonic timers on 300275970Scy (nearly) all supported platforms, including Windows, and OSX. Libevent 301275970Scy applications should now be more resilient to jumps forwards or backwards 302275970Scy in the system clock. Also, on Linux systems with epoll, we now 303275970Scy optionally support microsecond-level timeouts (whereas epoll only 304275970Scy supports millisecond-precision timeouts). 305275970Scy 306275970Scy o Use mach_absolute_time() for monotonic clock support on OSX. (b8fd6f9) 307275970Scy o Do not track use_monotonic field when is no monotonic clock (cb653a0) 308275970Scy o EVENT_BASE_FLAG_PRECISE_TIMER indicates we want fine timer precision 309275970Scy (ddd69d3) 310275970Scy o On Linux, use CLOCK_MONOTONIC_COARSE by default (55780a7) 311275970Scy o Implement a GetTickCount-based monotonic timer for Windows (d5e1d5a) 312275970Scy o Refactor monotonic timer handling into a new type and set of 313275970Scy functions; add a gettimeofday-based ratcheting implementation (f5e4eb0) 314275970Scy o Add EVENT_PRECISE_TIMER environment var for selecting precise-but-slow 315275970Scy timer (a2598ec) 316275970Scy o Implement fast/precise monotonic clocks on Windows (2c47045) 317275970Scy o Simple unit tests for monotonic timers (630f077) 318275970Scy o Improve the monotonic-time unit test: make it check the step size (7428c78) 319275970Scy o When PRECISE_TIMERS is set with epoll, use timerfd for microsecond 320275970Scy precision (26c7582) 321275970Scy o Split out time-related evutil functions into a new evutil_time.c (c419485) 322275970Scy o Split out time-related prototypes into time-internal.h (71bca50) 323275970Scy o Add evutil_time.obj to Makefile.nmake (0ba0683) 324275970Scy o Avoid giving a spurious warning when timerfd support is unavailable 325275970Scy (1aaf9f0 Dave Hart) 326275970Scy o Make test_evutil_monotonic a little more tolerant (def3b83) 327275970Scy o Avoid unused-var warning on systems with clock_gettime but without 328275970Scy CLOCK_MONOTONIC_COARSE (9be5468) 329275970Scy 330275970ScyEVENT_BASE_ONCE LEAKS: 331275970Scy If a callback added by event_base_once() is never invoked, Libevent no 332275970Scy longer leaks internal memory. 333275970Scy 334275970Scy o Free dangling event_once objects on event_base_free() (c17dd59) 335275970Scy o Add a unit test in which an event is created with event_base_once() 336275970Scy but never fires (4343edf) 337275970Scy 338275970ScyTESTING SUPPORT, FIXES AND IMPROVEMENTS: 339275970Scy 340275970Scy Libevent now disables by default its unit tests that would touch the 341275970Scy network, or that tend to fail on heavily-loaded systems. To re-enable 342275970Scy them, invoke the ./test/regress program with the @all alias. 343275970Scy 344275970Scy o Simplify test.sh code significantly. (9b856fd Ross Lagerwall) 345275970Scy o Make all tests that hit the network disabled by default (f2cea87) 346275970Scy o Avoid a resource leak on error in http client benchmark (ea92fba) 347275970Scy o Update to latest tinytest (911b4f0349377) (ef7c4f7) 348275970Scy o Avoid (unlikely) overflow in bench_httpclient.c (5671033) 349275970Scy o Shave 700 msec off the persistent_timeout_jump test (21205b8) 350275970Scy o Check return value of write() in regress.c (c8009d2) 351275970Scy o Make load-dependent monotonic timer tests off-by-default (2b6fe8b) 352275970Scy o Add deferred_cb_skew to list of timing-dependent tests (34c8f31) 353275970Scy o Avoid test -e; older shs don't have one. (f1bd938) 354275970Scy o Fix renegotiation test to work around openssl 1.0.1 bug (c2f3086) 355275970Scy o Fix a couple of compile warnings in the unit tests (5a9a014) 356275970Scy 357275970ScyMISC: 358275970Scy o Change evutil_weakrand_() to avoid platform random() (e86af4b Nicholas 359275970Scy Marriott, 3aa4415) 360275970Scy 361275970ScyINFRASTRUCTURE (Active-later events): 362275970Scy As a simplification and optimization to Libevent's "deferred callback" 363275970Scy logic (introduced in 2.0 to avoid callback recursion), Libevent now 364275970Scy treats all of its deferrable callback types using the same logic it uses 365275970Scy for active events. Now deferred events no longer cause priority 366275970Scy inversion, no longer require special code to cancel them, and so on. 367275970Scy 368275970Scy o Refactor the callback part of an event into its own event_callback 369275970Scy type (cba59e5) 370275970Scy o Add "active later" event_callbacks to supersede deferred (745a63d) 371275970Scy o event_base_assert_ok: check value of event_active_count for 372275970Scy correctness (fec8bae) 373275970Scy o Replace deferred_cbs with event_callback-based implementation. (ae2b84b) 374275970Scy o Replace more deferred_cb names with event_callback (a4079aa) 375275970Scy o Give event_base_process_active a single exit path (581b5be) 376275970Scy o Restore our priority-inversion-prevention code with deferreds (c0e425a) 377275970Scy o Refactor event_persist_closure: raise and extract some common logic 378275970Scy (bec22b4) 379275970Scy o Remove the unused bits from EVLIST_ALL (9889a3d) 380275970Scy 381275970ScyBUILD IMPROVEMENTS: 382275970Scy Libevent 2.1.2-alpha modernizes Libevent's use of autotools, and makes 383275970Scy numerous other build system. Parallel builds should be faster, and all 384275970Scy builds should be quieter. 385275970Scy 386275970Scy o Split long lists in Makefile.am into one-item-per-line (2711cda) 387275970Scy o Remove unnecessary code in configure.in. (e65914f Ross Lagerwall) 388275970Scy o attempt to support OpenSSL in Makefile.nmake (eba0eb2 Patrick Pelletier) 389275970Scy o Use newer syntax for autoconf/automake init (7d60ba8) 390275970Scy o Enable silent build rules by default. Override with V=1 (7b18e5c) 391275970Scy o Switch to non-recursive makefiles (7092f3b) 392275970Scy o Rename subordinate Makefile.ams to include.am (6cdfeeb) 393275970Scy o Make quiet build even quieter (371a123) 394275970Scy o New --quiet option for event_rpcgen.py (aa59c1e) 395275970Scy o Be quiet when making regress.gen.[ch] (607a8ff) 396275970Scy o Fix handling of no-python case for nonrecursive make (1e3123d) 397275970Scy o We now require automake 1.9 or later. Modernize! (b7f6e89) 398275970Scy o Rename configure.in to configure.ac. (b3fea67 Ross Lagerwall) 399275970Scy o Use correct openssl libs and includes in pkgconfig file (d70af27) 400275970Scy o Use the same CFLAGS for openssl when building unit tests as with 401275970Scy libevent (1d9d511) 402275970Scy 403275970ScyDOCUMENTATION 404275970Scy o Note that make_base_notifiable should not be necessary (26ee5f9) 405275970Scy o Be more clear that LEV_OPT_DEFERRED_ACCEPT has tricky prereqs (371efeb) 406275970Scy o Add caveat to docs about bufferevent_free() with data in outbuf (6fab9ee) 407275970Scy o Make it more clear that NOLOCK means "I promise, no multithreading" 408275970Scy (9444524) 409275970Scy o Fix a comment in test-fdleak after 077c7e949. (3881d8f Ross Lagerwall) 410275970Scy o Make the Makefile.nmake warning slightly less dire (e7bf4c8) 411275970Scy o Fix typo : events instead of evets (05f1aca Azat Khuzhin) 412275970Scy o Additional comments about OPENSSL_DIR variable, prompted by Dave Hart 413275970Scy (6bde2ef Patrick Pelletier) 414275970Scy 415275970ScyEVHTTP: 416275970Scy o ignore LWS after field-content in headers (370a2c0 Artem Germanov) 417275970Scy o Clean up rtrim implementation (aa59d80) 418275970Scy o Remove trailing tabs in HTTP headers as well. (ac42519) 419275970Scy o Remove internal ws from multiline http headers correctly (c6ff381) 420275970Scy o Move evutil_rtrim_lws_ to evutil.c where it belongs (61b93af) 421275970Scy o add evhttp_request_get_response_code_line (4f4d0c9 Jay R. Wren) 422275970Scy o Use EVUTIL_SOCKET_ERROR() wrapper to save/restore errno in 423275970Scy evhttp_connection_fail_ (7afbd60) 424275970Scy o preserve errno in evhttp_connection_fail_ for inspection by the 425275970Scy callback (36d0ee5 Patrick Pelletier) 426275970Scy 427275970ScyBUGFIXES: 428275970Scy o Correctly handle running on a system where accept4 doesn't work. (9fbfe9b) 429275970Scy o Avoid double-free on error in evbuffer_add_file. Found by 430275970Scy coverity. (6a81b1f) 431275970Scy o Fix another possible uninitialized read in dns regression tests. Found 432275970Scy by coverity. (13525c5) 433275970Scy o Add checks for functions in test-ratelim.c; found by Coverity (aa501e1) 434275970Scy o Avoid memory leak in test_event_calloc unit test; found by coverity 435275970Scy (92817a1) 436275970Scy o Fix a shadowed variable in addfile_test_readcb; found by coverity 437275970Scy (225344c) 438275970Scy o Check return value when using LEV_OPT_DEFERRED_ACCEPT. Found by 439275970Scy coverity (6487f63) 440275970Scy o Prevent reference leak of bufferevent if getaddrinfo fails. (b757786 441275970Scy Joachim Bauch) 442275970Scy o Make event_base_getnpriorities work with old "implicit base" code 443275970Scy (c46cb9c) 444275970Scy o Simplify and correct evutil_open_closeonexec_ (0de587f) 445275970Scy o Fix event_dlist definition when sys/queue not included (81b6209 446275970Scy Derrick Pallas) 447275970Scy 448275970Scy 449275970Scy 450275970ScyChanges in version 2.1.1-alpha (4 Apr 2012) 451275970Scy 452275970Scy Libevent 2.1.1-alpha includes a number of new features and performance 453275970Scy improvements. The log below tries to organize them by rough area of 454275970Scy effect. It omits some commits which were pure bugfixes on other commits 455275970Scy listed below. For more detail, see the git changelogs. For more 456275970Scy insight, see the "whatsnew-2.1.txt" document included in the Libevent 457275970Scy 2.1.1-alpha distribution. 458275970Scy 459275970Scy Performance: Core 460275970Scy o Replace several TAILQ users with LIST. LIST can be a little faster than 461275970Scy TAILQ for cases where we don't need queue-like behavior. (f9db33d, 462275970Scy 6494772, d313c29, 974d004) 463275970Scy o Disabled code to optimize the case where we reinsert an existing 464275970Scy timeout (e47042f, 09cbc3d) 465275970Scy o Remove a needless base-notify when rescheduling the first timeout (77a96fd) 466275970Scy o Save a needless comparison when removing/adjusting timeouts (dd5189b) 467275970Scy o Possible optimization: split event_queue_insert/remove into 468275970Scy separate functions. needs testing (efc4dc5) 469275970Scy o Make event_count maintenance branchless at the expense of an 470275970Scy extra shift. Needs benchmarking (d1cee3b) 471275970Scy o In the 2.1 branch, let's try out lazy gettimeofday/clock_gettime 472275970Scy comparison (2a83ecc) 473275970Scy o Optimization in event_process_active(): ignore maxcb & endtime 474275970Scy for highest priority events. (a9866aa Alexander Drozdov) 475275970Scy o Bypass event_add when using event_base_once() for a 0-sec timeout (35c5c95) 476275970Scy o Remove the eventqueue list and the ev_next pointers. (604569b 066775e) 477275970Scy 478275970Scy Performance: Evbuffers 479275970Scy o Roughly 20% speed increase when line-draining a buffer using 480275970Scy EVBUFFER_EOL_CRLF (5dde0f0 Mina Naguib) 481275970Scy o Try to squeeze a little more speed out of EVBUFFER_EOL_CRLF (7b9d139) 482275970Scy o Fix a bug in the improved EOL_CRLF code (d927965) 483275970Scy o Remove a needless branch in evbuffer_drain() (d19a326) 484275970Scy 485275970Scy Performance: Linux 486275970Scy o Infrastructure for using faster/fewer syscalls when creating 487275970Scy sockets (a1c042b) 488275970Scy o Minimize syscalls during socket creation in listener.c (7e9e289) 489275970Scy o Use a wrapper function to create the notification 490275970Scy pipe/socketpair/eventfd (ca76cd9) 491275970Scy o Use pipes for telling signals to main thread when possible (a35f396) 492275970Scy o Save syscalls when constructing listener sockets for evhttp (af6c9d8) 493275970Scy o Save some syscalls when creating evdns sockets (713e570) 494275970Scy o Save some syscalls when constructing a socket for a bufferevent (33fca62) 495275970Scy o Prefer epoll_create1 on Linuxen that have it (bac906c) 496275970Scy 497275970Scy Performance: Epoll backend 498275970Scy o Use current event set rather than current pending change when 499275970Scy deciding whether to no-op a del (04ba27e Mike Smellie) 500275970Scy o Replace big chain of if/thens in epoll.c with a table lookup (8c83eb6) 501275970Scy o Clean up error handling in epoll_apply_one_change() a little (2d55a19) 502275970Scy 503275970Scy Performance: Evport backend 504275970Scy o evport: use evmap_io to track fdinfo status. Should save time and 505275970Scy RAM. (4687ce4) 506275970Scy o evport: Remove a linear search over recent events when 507275970Scy reactivating them (0f77efe) 508275970Scy o evport: Use portev_user to remember fdinfo struct (276ec0e) 509275970Scy o evport: don't scan more events in ed_pending than needed (849a5cf) 510275970Scy o evport: Remove artificial low limit on max events per getn call (c04d927) 511275970Scy o Reenable main/many_events_slow_add for evport in 2.1 (e903db3) 512275970Scy 513275970Scy Performance: Windows 514275970Scy o Use GetSystemTimeAsFileTime to implement gettimeofday on 515275970Scy win32. It's faster and more accurate than our old 516275970Scy approach. (b8b8aa5) 517275970Scy 518275970Scy New functions and features: debugging 519275970Scy o Add event_enable_debug_logging() to control use of debug logs (e30a82f) 520275970Scy 521275970Scy New functions and features: core 522275970Scy o Add event_config function to limit time/callbacks between calls 523275970Scy to dispatch (fd4de1e, 9fa56bd, a37a0c0, 3c63edd) 524275970Scy o New EVLOOP_NO_EXIT_ON_EMPTY option to keep looping even when no 525275970Scy events are pending (084e68f) 526275970Scy o Add event_base_get_npriorities() function. (ee3a4ee Alexander Drozdov) 527275970Scy o Make evbase_priority_init() and evbase_get_npriorities() 528275970Scy threadsafe (3c55b5e) 529275970Scy o New event_base_update_cache_time() to set cached_tv to current 530275970Scy time (212533e Abel Mathew) 531275970Scy o Add event_self_cbarg() to be used in conjunction with 532275970Scy event_new(). (ed36e6a Ross Lagerwall, fa931bb, 09a1906, 1338e6c, 533275970Scy 33e43ef) 534275970Scy o Add a new libevent_global_shutdown() to free all globals before 535275970Scy exiting. (041ca00 Mark Ellzey, f98c158, 15296d0, 55e991b) 536275970Scy o Use getifaddrs to detect our interfaces if possible (7085a45) 537275970Scy o Add event_base_get_running_event() to get the event* whose cb we 538275970Scy are in (c5732fd, 13dad99) 539275970Scy 540275970Scy New functions and features: building 541275970Scy o Implement --enable-gcc-hardening configure option (7550267 Sebastian Hahn) 542275970Scy 543275970Scy New functions and features: evbuffers 544275970Scy o Add evbuffer_add_file_segment() so one fd can be used efficiently 545275970Scy in more than one evbuffer_add_file at a time (e72afae, c2d9884, 546275970Scy 3f405d2, 0aad014) 547275970Scy o Fix windows file segment mappings (8254de7) 548275970Scy o Allow evbuffer_ptr_set to yield a point just after the end of the 549275970Scy buffer. (e6fe1da) 550275970Scy o Allow evbuffer_ptr to point to position 0 in an empty evbuffer 551275970Scy (7aeb2fd Nir Soffer) 552275970Scy o Set the special "not found" evbuffer_ptr consistently. (e3e97ae Nir Soffer) 553275970Scy o support adding buffers to other buffers non-destructively 554275970Scy (9d7368a Joachim Bauch) 555275970Scy o prevent nested multicast references, reworked locking (26041a8 556275970Scy Joachim Bauch) 557275970Scy o New EVBUFFER_EOL_NUL to read NUL-terminated strings from an 558275970Scy evbuffer (d7a8b36 Andrea Montefusco, 54142c9) 559275970Scy o Make evbuffer_file_segment_types adaptable (c6bbbf1) 560275970Scy o Added evbuffer_add_iovec and unit tests. (aaec5ac Mark Ellzey, 27b5398) 561275970Scy o Add evbuffer_copyout_from to copy data from the middle of a 562275970Scy buffer (27e2225) 563275970Scy 564275970Scy New functions and features: bufferevents 565275970Scy o Allow users to set allow_dirty_shutdown (099d27d Catalin Patulea) 566275970Scy o Tweak allow_dirty_shutdown documentation (a44cd2b) 567275970Scy o Fix two issues in the allow_dirty_shutdown code. (f3b89de) 568275970Scy o Add a bufferevent_getcb() to find a bufferevent's current 569275970Scy callbacks (a650394) 570275970Scy o bufferevent: Add functions to set/get max_single_read/write 571275970Scy values. (998c813 Alexander Drozdov) 572275970Scy o bev_ssl: Be more specific in event callbacks. evhttp in particular gets 573275970Scy confused without at least one of BEV_EVENT_{READING|WRITING}. (f7eb69a 574275970Scy Catalin Patulea) 575275970Scy 576275970Scy New functions and features: evconnlisteners 577275970Scy o Support TCP_DEFER_ACCEPT sockopts for listeners (5880e4a Mark Ellzey, 578275970Scy a270728) 579275970Scy o Add another caveat to the TCP_DEFER_ACCEPT documentation (a270728) 580275970Scy o Allow evconnlistener to be created in disabled state. (9593a33 581275970Scy Alexander Drozdov) 582275970Scy o The LEV_OPT_CLOSE_ON_EXEC flag now applies to accepted listener 583275970Scy sockets too (4970329) 584275970Scy 585275970Scy Evhttp: 586275970Scy o Add new evhttp_{connection_}set_timeout_tv() functions to set 587275970Scy finger-grained http timeouts (6350e6c Constantine Verutin) 588275970Scy o Performance tweak to evhttp_parse_request_line. (aee1a97 Mark Ellzey) 589275970Scy o Add missing break to evhttp_parse_request_line (0fcc536) 590275970Scy o Add evhttp callback for bufferevent creation; this lets evhttp 591275970Scy support SSL. (8d3a850) 592275970Scy o Remove calls to deprecated bufferevent functions from evhttp.c (4d63758) 593275970Scy o evhttp: Add evhttp_foreach_bound_socket. (a2c48e3 Samy Al Bahra) 594275970Scy 595275970Scy Build improvements: 596275970Scy o Add AC_USE_SYSTEM_EXTENSIONS to configure.in. Requires follow on 597275970Scy patches for correctness and robustness. (1fa7dbe Kevin Bowling) 598275970Scy o Filter '# define' statements from autoconf and generate 599275970Scy event-private.h (321b558 Kevin Bowling) 600275970Scy o Remove internal usage of _GNU_SOURCE (3b26541 Kevin Bowling) 601275970Scy o Eliminate a couple more manual internal _GNU_SOURCE defines (c51ef93 602275970Scy Kevin Bowling) 603275970Scy o Add AC_GNU_SOURCE to the fallback case. (ea8fa4c Kevin Bowling) 604275970Scy o Use a Configuration Header Template for evconfig-private.h (868f888 605275970Scy Kevin Bowling) 606275970Scy o Fix a comment warning and add evconfig-private.h to .gitignore 607275970Scy (f6d66bc Kevin Bowling) 608275970Scy o Include evconfig-private.h in internal files for great good. (0915ca0 609275970Scy Kevin Bowling) 610275970Scy o Backport libevent to vanilla Autoconf 2.59 (as used in RHEL5) 611275970Scy (ad03952 Kevin Bowling) 612275970Scy o Prefer the ./configure evconfig-private.h in MinGW, just in 613275970Scy case. (f964b72 Kevin Bowling) 614275970Scy o Shell hack for weird mkdir -p commands (fd7b5a8 Kevin Bowling) 615275970Scy o Add evconfig-private to remaining files (ded0a09 Kevin Bowling) 616275970Scy o Allow use of --enable-silent-rules for quieter compilation with 617275970Scy automake 1.11 (f1f8514 Dave Hart) 618275970Scy o Use "_WIN32", not WIN32: it's standard and we don't need to fake it 619275970Scy (9f560b) 620275970Scy o In configure, test for _WIN32 not WIN32. (85078b1 Peter Rosin) 621275970Scy o Do not define WIN32 in Makefile.nmake (d41f3ea Peter Rosin) 622275970Scy o Provide the autoconf m4 macros for the new OpenSSL via pkg-config 623275970Scy stuff. (674dc3d Harlan Stenn) 624275970Scy o Use pkg-config (if available) to handle OpenSSL. (1c63860 Harlan Stenn) 625275970Scy o We need AM_CPPFLAGS when compiling bufferevent_openssl.c (6d2613b 626275970Scy Harlan Stenn) 627275970Scy o Fix OSX build: $(OPENSSL_INCS) needs to be after 628275970Scy $(AM_CPPFLAGS). (46f1769 Zack Weinberg) 629275970Scy o Make gcc warnings on by default, and --enable-gcc-warnings only add 630275970Scy -Werror (d46517e Sebastian Hahn) 631275970Scy o Split up extra-long AC_CHECK_FUNCS/HEADERS lines in configure.in (88a30ad) 632275970Scy o Move libevent 1.x headers to include/, to put all public headers in 633275970Scy one place. (bbea8d6) 634275970Scy o Put #ifdef around some files to support alternate build 635275970Scy systems. (76d4c92 Ross Lagerwall) 636275970Scy o Also make win32select.c conditional for IDE users (bf2c5a7) 637275970Scy 638275970Scy Debugging: 639275970Scy o Add a magic number to debug_locks to better catch lock-coding 640275970Scy errors. (b4a29c0 Dave Hart) 641275970Scy o munge the debug_lock signature before freeing it: it might help us 642275970Scy catch use-after-free (f28084d) 643275970Scy o Added --enable-event-debugging in configure (bc7b4e4, a9c2c9a Mark Ellzey) 644275970Scy o Debug addition for printing usec on TIMEOUT debugging. (ac43ce0 Mark Ellzey) 645275970Scy o Added usec debug in another area for debug (3baab0d Mark Ellzey) 646275970Scy o added timeout debug logs to include event ptr. (4b7d298 Mark Ellzey) 647275970Scy o more event dbg updates (6727543 Mark Ellzey) 648275970Scy o Clarify event_enable_debug_logging a little (6207826) 649275970Scy o Make --enable-verbose-debug option match its help text (10c3450) 650275970Scy o Add argument checks to some memory functions in `event.c'. (c8953d1 651275970Scy Mansour Moufid) 652275970Scy 653275970Scy Testing: 654275970Scy o More abstraction in test.sh (cd74c4e) 655275970Scy o Add failing test for evbuffer_search_range. (8e26154 Nir Soffer) 656275970Scy o Tweaks to return types with end-of-buf ptrs (9ab8ab8) 657275970Scy o Add an (internal) usleep function for use by unit tests (f25d9d3) 658275970Scy o Synchronize with upstream tinytest (6c81be7) 659275970Scy o Make test-changelist faster (7622d26) 660275970Scy o Reduce the timeout in the main/fork test. (ab14f7c) 661275970Scy o New evhttp function to adjust initial retry timeout (350a3c4) 662275970Scy o Make regression tests run over 3x faster. (67a1763) 663275970Scy o Use test_timeval_diff_eq more consistently (b77b43f) 664275970Scy o Allow more slop in deferred_cb_skew test; freebsd needs it (b9f7e5f) 665275970Scy o When including an -internal.h header outside the main tree, do so 666275970Scy early (95e2455) 667275970Scy o Add a new test: test-fdleak which tests for fd leaks by creating many 668275970Scy sockets. (2ef9278 Ross Lagerwall, f7af194, 1c4288f, etc) 669275970Scy o Add a unit test for event_base_dump_events() (7afe48a, 8d08cce) 670275970Scy o Test more bufferevent_ratelim features (c24f91a) 671275970Scy 672275970Scy Documentation: 673275970Scy o Improve evbuffer_ptr documentation (261ba63) 674275970Scy o added comments to describe refcounting of multicast chains (ba24f61 675275970Scy Joachim Bauch) 676275970Scy o Add doxygen for event_base_dump_events (cad5753) 677275970Scy 678275970Scy OSX: 679275970Scy o Use "unlimited select" on OSX so that we can have more than 680275970Scy FD_SETSIZE fds (1fb5cc6) 681275970Scy 682275970Scy KQueue: 683275970Scy o Use SIG_IGN instead of a do-nothing handler for signal events with 684275970Scy kqueue (148458e Zack Weinberg) 685275970Scy 686275970Scy evprc: 687275970Scy o event_rpcgen.py now prints status information to stdout and errors to 688275970Scy stderr. (ffb0ba0 Ross Lagerwall) 689275970Scy 690275970Scy Code improvement and refactoring: 691275970Scy o Make event_reinit() more robust and maintainable (272033e) 692275970Scy o Restore fast-path event_reinit() for slower backends (2c4b5de) 693275970Scy o Check changelist as part of checking representational integrity (39b3f38) 694275970Scy o Fix a compile warning in event_reinit (e4a56ed Sebastian Hahn) 695275970Scy o Refactor the functions that run over every event. (c89b4e6) 696275970Scy o Remove the last vestiges of _EVENT_USE_EVENTLIST (a3cec90) 697275970Scy o Make event-config.h depend on Makefile.am (2958a5c) 698275970Scy 699275970Scy Build fixes: 700275970Scy o Don't do clang version detection when disabling some flags (083296b 701275970Scy Sebastian Hahn) 702275970Scy 703275970Scy C standards conformance: 704275970Scy o Check for NULL return on win32 mm_calloc, and set ENOMEM. (af7ba69) 705275970Scy o Convert event-config.h macros to avoid reserved identifiers (68120d9) 706275970Scy o Generate event-config.h using the correct macros. (f82c57e) 707275970Scy o Convert include-guard macro convention to avoid reserved identifiers 708275970Scy (3f8c7cd) 709275970Scy o Make event_rpcgen.py output conform to identifier conventions (372bff1) 710275970Scy o Stop referring to an obsolete include guard in bench_http.h (5c0f7e0) 711275970Scy o Make the generated event-config.h use correct include guards (639383a) 712275970Scy o Fix all identifiers with names beginning with underscore. (cb9da0b) 713275970Scy o Make event_rpcgen.py output conform to identifier conventions, more 714275970Scy (bcefd24) 715275970Scy o Fix some problems introduced by automated identifier cleanup script 716275970Scy (c963534) 717275970Scy o Have all visible internal function names end with an underscore. (8ac3c4c) 718275970Scy o Apply the naming convention to our EVUTIL_IS* functions (c7848fa) 719275970Scy o Clean up lingering _identifiers. (946b584) 720275970Scy o Fix doxygen to use new macro conventions (da455e9) 721275970Scy 722275970Scy Bugfixes: 723275970Scy o Do not use system EAI/AI values if we are not using the system 724275970Scy getaddrinfo. (7bcac07) 725275970Scy 726275970Scy Sample Code: 727275970Scy o Fix up sample/event-test.c to use newer interfaces and make it 728275970Scy actually work. (19bab4f Ross Lagerwall) 729275970Scy o On Unix, remove event.fifo left by sample/event-test.c. (c0dacd2 Ross 730275970Scy Lagerwall) 731275970Scy o Rename event-test.c to event-read-fifo.c. (a5b370a Ross Lagerwall) 732275970Scy o event-read-fifo: Use EV_PERSIST appropriately (24dab0b) 733275970Scy 734275970Scy 735275970Scy 736275970Scy 737