Contains stuff through 3e9612cd81c8a9881ef298fa59c40af343e4f126
- Performance:
-
+ Performance: Core
o Replace several TAILQ users with LIST. LIST can be a little faster than
TAILQ for cases where we don't need queue-like behavior. (f9db33d,
6494772, d313c29, 974d004)
o possible optimization: split event_queue_insert/remove into separate functions. needs testing (efc4dc5)
o Make event_count maintainance branchless at the expense of an extra shift. Needs benchmarking (d1cee3b)
o In the 2.1 branch, let's try out lazy gettimeofday/clock_gettime comparison (2a83ecc)
+ o Optimization in event_process_active(): ignore maxcb & endtime for highest priority events. (a9866aa Alexander Drozdov)
+ o Bypass event_add when using event_base_once() for a 0-sec timeout (35c5c95)
+ o Remove the eventqueue list and the ev_next pointers. (604569b 066775e)
+
+ Performance: Evbuffers
o Roughly 20% speed increase when line-draining a buffer using EVBUFFER_EOL_CRLF (5dde0f0 Mina Naguib)
o Try to squeeze a little more speed out of EVBUFFER_EOL_CRLF (7b9d139)
o Fix a bug in the improved EOL_CRLF code (d927965)
o Remove a needless branch in evbuffer_drain() (d19a326)
- o Optimization in event_process_active(): ignore maxcb & endtime for highest priority events. (a9866aa Alexander Drozdov)
- o Bypass event_add when using event_base_once() for a 0-sec timeout (35c5c95)
- o Infrastructure for using faster/fewer syscalls when creating sockets (a1c042b)
- o Minimize syscalls during socket creation in listener.c (7e9e289)
- o The LEV_OPT_CLOSE_ON_EXEC flag now applies to accepted listener sockets too (4970329)
- o Use a wrapper function to create the notification pipe/socketpair/eventfd (ca76cd9)
- o Use pipes for telling signals to main thread when possible (a35f396)
- o Save syscalls when constructing listener sockets for evhttp (af6c9d8)
- o Save some syscalls when creating evdns sockets (713e570)
- o Save some syscalls when constructing a socket for a bufferevent (33fca62)
- o Prefer epoll_create1 on Linuxen that have it (bac906c)
- o Fix compilation on osx (2b0a2c4)
+
+ Performance: Linux
o Infrastructure for using faster/fewer syscalls when creating sockets (a1c042b)
o Minimize syscalls during socket creation in listener.c (7e9e289)
- o The LEV_OPT_CLOSE_ON_EXEC flag now applies to accepted listener sockets too (4970329)
o Use a wrapper function to create the notification pipe/socketpair/eventfd (ca76cd9)
o Use pipes for telling signals to main thread when possible (a35f396)
o Save syscalls when constructing listener sockets for evhttp (af6c9d8)
o Save some syscalls when creating evdns sockets (713e570)
o Save some syscalls when constructing a socket for a bufferevent (33fca62)
o Prefer epoll_create1 on Linuxen that have it (bac906c)
- o Fix compilation on osx (2b0a2c4)
- o If open(O_CLOEXEC) fails, fall back to fcntl(CLOEXEC) (2ed4430)
- o Support TCP_DEFER_ACCEPT sockopts for listeners (5880e4a Mark Ellzey)
- o Add another caveat to the TCP_DEFER_ACCEPT documentation (a270728)
-
- Epoll backend:
+ Performance: Epoll backend
o Use current event set rather than current pending change when deciding whether to no-op a del (04ba27e Mike Smellie)
o Replace big chain of if/thens in epoll.c with a table lookup (8c83eb6)
o Clean up error handling in epoll_apply_one_change() a little (2d55a19)
- Windows:
+ Performance: Evport backend
+ o evport: use evmap_io to track fdinfo status. Should save time and RAM. (4687ce4)
+ o evport: Remove a linear search over recent events when reactivating them (0f77efe)
+ o evport: Use portev_user to remember fdinfo struct (276ec0e)
+ o evport: don't scan more events in ed_pending than needed (849a5cf)
+ o evport: Remove artificial low limit on max events per getn call (c04d927)
+ o Reenable main/many_events_slow_add for evport in 2.1 (e903db3)
+
+ Performance: Windows
o Use GetSystemTimeAsFileTime to implement gettimeofday on win32. It's faster and more accurate than our old approach. (b8b8aa5)
- New functions and features:
+ New functions and features: debugging
o Add event_enable_debug_logging() to control use of debug logs (e30a82f)
+
+ New functions and features: core
+ o Add event_config function to limit time/callbacks between calls to dispatch (fd4de1e, 9fa56bd, a37a0c0, 3c63edd)
+ o New EVLOOP_NO_EXIT_ON_EMPTY option to keep looping even when no events are pending (084e68f)
+ o Add event_base_get_npriorities() function. (ee3a4ee Alexander Drozdov)
+ o Make evbase_priority_init() and evbase_get_npriorities() threadsafe (3c55b5e) o New event_base_update_cache_time() to set cached_tv to current time (212533e Abel Mathew)
+ o Add event_self_cbarg() to be used in conjunction with event_new(). (ed36e6a Ross Lagerwall, fa931bb, 09a1906, 1338e6c, 33e43ef)
+ o Add a new libevent_global_shutdown() to free all globals before exiting. (041ca00 Mark Ellzey)
+ o Use getifaddrs to detect our interfaces if possible (7085a45)
+ o Fix compilation of windows evutil_check_ifaddrs (40a3c52)
+
+ New functions and features: building
+ o Implement --enable-gcc-hardening configure option (7550267 Sebastian Hahn)
+
+ New functions and features: evbuffers
o Add evbuffer_add_file_segment() so one fd can be used efficiently in more than one evbuffer_add_file at a time (e72afae, c2d9884, 3f405d2, 0aad014)
o Fix windows file segment mappings (8254de7)
o Allow evbuffer_ptr_set to yield a point just after the end of the buffer. (e6fe1da)
o Allow evbuffer_ptr to point to position 0 in an empty evbuffer (7aeb2fd Nir Soffer)
o Set the special "not found" evbuffer_ptr consistantly. (e3e97ae Nir Soffer)
o support adding buffers to other buffers non-destructively (9d7368a Joachim Bauch)
- o prevent nested multicast references, reworked locking (26041a8 Joachim Bauch)
- o Add event_config function to limit time/callbacks between calls to dispatch (fd4de1e)
- o Make sure max_dispatch_callbacks is never negative (9fa56bd)
- o Make max_dispatch_interval able to apply only to low-priority events (a37a0c0)
- o Make the priority inversion code use gettime(), not evutil_gettimeofday() (3c63edd)
- o Build with large-file support on platforms where it matters (8a23104)
- o Implement --enable-gcc-hardening configure option (7550267 Sebastian Hahn)
- o Allow evconnlistener to be created in disabled state. (9593a33 Alexander Drozdov)
- o New EVLOOP_NO_EXIT_ON_EMPTY option to keep looping even when no events are pending (084e68f)
+ o prevent nested multicast references, reworked locking (26041a8 Joachim Bauch) o New EVBUFFER_EOL_NUL to read NUL-terminated strings from an evbuffer (d7a8b36 Andrea Montefusco, 54142c9)
o Make evbuffer_file_segment_types adaptable (c6bbbf1)
- o Add event_base_get_npriorities() function. (ee3a4ee Alexander Drozdov)
- o Make evbase_priority_init() and evbase_get_npriorities() threadsafe (3c55b5e)
- o bufferevent: Add functions to set/get max_single_read/write values. (998c813 Alexander Drozdov)
- o New event_base_update_cache_time() to set cached_tv to current time (212533e Abel Mathew)
o Added evbuffer_add_iovec and unit tests. (aaec5ac Mark Ellzey, 27b5398)
o Add evbuffer_copyout_from to copy data from the middle of a buffer (27e2225)
- o Use getifaddrs to detect our interfaces if possible (7085a45)
- o Fix compilation of windows evutil_check_ifaddrs (40a3c52)
- o Add a bufferevent_getcb() to find a bufferevent's current callbacks (a650394)
+
+ New functions and features: bufferevents
+ o Allow users to set allow_dirty_shutdown (099d27d Catalin Patulea)
+ o Tweak allow_dirty_shutdown documentation (a44cd2b)
+ o Fix two issues in the allow_dirty_shutdown code. (f3b89de)
+ o Add a bufferevent_getcb() to find a bufferevent's current callbacks (a650394) o bufferevent: Add functions to set/get max_single_read/write values. (998c813 Alexander Drozdov)
+ o bev_ssl: Be more specific in event callbacks. evhttp in particular gets confused without at least one of BEV_EVENT_{READING|WRITING}. (f7eb69a Catalin Patulea)
+ New functions and features: evconnlisteners
+ o Support TCP_DEFER_ACCEPT sockopts for listeners (5880e4a Mark Ellzey, a270728)
+ o Add another caveat to the TCP_DEFER_ACCEPT documentation (a270728)
+ o Allow evconnlistener to be created in disabled state. (9593a33 Alexander Drozdov)
+ o The LEV_OPT_CLOSE_ON_EXEC flag now applies to accepted listener sockets too (4970329)
Evhttp:
o Add new evhttp_{connection_}set_timeout_tv() functions to set finger-grained http timeouts (6350e6c Constantine Verutin)
o Remove calls to deprecated bufferevent functions from evhttp.c (4d63758)
o evhttp: Add evhttp_foreach_bound_socket. (a2c48e3 Samy Al Bahra)
-
- Bufferevents:
- o bev_ssl: Be more specific in event callbacks. evhttp in particular gets confused without at least one of BEV_EVENT_{READING|WRITING}. (f7eb69a Catalin Patulea)
-
Build improvements
o Add AC_USE_SYSTEM_EXTENSIONS to configure.in. Requires follow on patches for correctness and robustness. (1fa7dbe Kevin Bowling)
o Filter '# define' statements from autoconf and generate event-private.h (321b558 Kevin Bowling)
o Make --enable-verbose-debug option match its help text (10c3450)
o Add argument checks to some memory functions in `event.c'. (c8953d1 Mansour Moufid)
-
- Evport backend:
- o evport: use evmap_io to track fdinfo status. Should save time and RAM. (4687ce4)
- o evport: Remove a linear search over recent events when reactivating them (0f77efe)
- o evport: Use portev_user to remember fdinfo struct (276ec0e)
- o evport: don't scan more events in ed_pending than needed (849a5cf)
- o evport: Remove artificial low limit on max events per getn call (c04d927)
- o Reenable main/many_events_slow_add for evport in 2.1 (e903db3)
-
-
- Huh what:
- o Allow base-notification functions to exist without setting an fd (94b8e67)
- o Use the free-trailing-chains function in evbuffer_insert_chain too (b18c04d)
- o Allow users to set allow_dirty_shutdown (099d27d Catalin Patulea)
- o Tweak allow_dirty_shutdown documentation (a44cd2b)
- o Fix two issues in the allow_dirty_shutdown code. (f3b89de)
- o Changed use of refcounts to make sure referenced chains are freed in all cases. (a8e5e2f Joachim Bauch)
- o fix windows compilation issues with new file segment code (da45aa7)
-
Testing:
o More abstraction in test.sh (cd74c4e)
o Add failing test for evbuffer_search_range. (8e26154 Nir Soffer)
o Tweaks to return types with end-of-buf ptrs (9ab8ab8)
- o New EVBUFFER_EOL_NUL to read NUL-terminated strings from an evbuffer (d7a8b36 Andrea Montefusco, 54142c9)
o Add an (internal) usleep function for use by unit tests (f25d9d3)
o Synchronize with upstream tinytest (6c81be7)
o Make test-changelist faster (7622d26)
-
-
- Documentation:
- o Improve evbuffer_ptr documentation (261ba63)
- o added comments to describe refcounting of multicase chains (ba24f61 Joachim Bauch)
o Reduce the timeout in the main/fork test. (ab14f7c)
o New evhttp function to adjust initial retry timeout (350a3c4)
o Make regression tests run over 3x faster. (67a1763)
o Use test_timeval_diff_eq more consistently (b77b43f)
o Allow more slop in deferred_cb_skew test; freebsd needs it (b9f7e5f)
o When including an -internal.h header outside the main tree, do so early (95e2455)
+ o Add a new test: test-fdleak which tests for fd leaks by creating many sockets. (2ef9278 Ross Lagerwall, f7af194, 1c4288f 4293a80, c9ba53a 077c7e9 d9be5f4 d7d9f75)
+ Documentation:
+ o Improve evbuffer_ptr documentation (261ba63)
+ o added comments to describe refcounting of multicase chains (ba24f61 Joachim Bauch)
+ o Add doxygen for event_base_dump_events (cad5753)
- OSX:
+ OSX:
o Use "unlimited select" on OSX so that we can have more than FD_SETSIZE fds (1fb5cc6)
-
KQueue:
o Use SIG_IGN instead of a do-nothing handler for signal events with kqueue (148458e Zack Weinberg)
evprc:
- o event_rpcgen.py now prints status information to stdout and errors to stderr. (ffb0ba0 Ross Lagerwall)
-
+ o event_rpcgen.py now prints status information to stdout and errors to stderr. (ffb0ba0 Ross Lagerwall)
Code improvement and refactoring:
o Make event_reinit() more robust and maintainable (272033e)
Build fixes:
o Don't do clang version detection when disabling some flags (083296b Sebastian Hahn)
-======
-Performance:
- o Remove the eventqueue list and the ev_next pointers. (604569b 066775e)
-
-Documentation:
- o Add doxygen for event_base_dump_events (cad5753)
-
-Testing:
- o Add a new test: test-fdleak which tests for fd leaks by creating many sockets. (2ef9278 Ross Lagerwall, f7af194, 1c4288f 4293a80, c9ba53a 077c7e9 d9be5f4 d7d9f75)
-
-C standards conformance:
- o Check for NULL return on win32 mm_calloc, and set ENOMEM. (af7ba69)
- o Convert event-config.h macros to avoid reserved identifiers (68120d9)
- o Generate event-config.h using the correct macros. (f82c57e)
- o Convert include-guard macro convention to avoid reserved identifiers (3f8c7cd)
- o Make event_rpcgen.py output conform to indentifier conventions (372bff1)
- o Stop referring to an obsolete include guard in bench_http.h (5c0f7e0)
- o Make the generated event-config.h use correct include guards (639383a)
- o Fix all identifiers with names beginning with underscore. (cb9da0b)
- o Make event_rpcgen.py output conform to indentifier conventions, more (bcefd24)
- o Fix some problems introduced by automated identifier cleanup script (c963534)
- o Have all visible internal function names end with an underscore. (8ac3c4c)
- o Apply the naming convention to our EVUTIL_IS* functions (c7848fa)
- o Clean up lingering _identifiers. (946b584)
- o Fix doxygen to use new macro conventions (da455e9)
-
-Bugfixes:
- o Do not use system EAI/AI values if we are not using the system getaddrinfo. (7bcac07)
-
-Sample Code:
- o Fix up sample/event-test.c to use newer interfaces and make it actually work. (19bab4f Ross Lagerwall)
- o On Unix, remove event.fifo left by sample/event-test.c. (c0dacd2 Ross Lagerwall)
- o Rename event-test.c to event-read-fifo.c. (a5b370a Ross Lagerwall)
- o event-read-fifo: Use EV_PERSIST appropriately (24dab0b)
-
-Features:
- o Add event_self_cbarg() to be used in conjunction with event_new(). (ed36e6a Ross Lagerwall, fa931bb, 09a1906, 1338e6c, 33e43ef)
- o Add a new libevent_global_shutdown() to free all globals before exiting. (041ca00 Mark Ellzey)
-
-==============================
\ No newline at end of file
+ C standards conformance:
+ o Check for NULL return on win32 mm_calloc, and set ENOMEM. (af7ba69)
+ o Convert event-config.h macros to avoid reserved identifiers (68120d9)
+ o Generate event-config.h using the correct macros. (f82c57e)
+ o Convert include-guard macro convention to avoid reserved identifiers (3f8c7cd)
+ o Make event_rpcgen.py output conform to indentifier conventions (372bff1)
+ o Stop referring to an obsolete include guard in bench_http.h (5c0f7e0)
+ o Make the generated event-config.h use correct include guards (639383a)
+ o Fix all identifiers with names beginning with underscore. (cb9da0b)
+ o Make event_rpcgen.py output conform to indentifier conventions, more (bcefd24)
+ o Fix some problems introduced by automated identifier cleanup script (c963534)
+ o Have all visible internal function names end with an underscore. (8ac3c4c)
+ o Apply the naming convention to our EVUTIL_IS* functions (c7848fa)
+ o Clean up lingering _identifiers. (946b584)
+ o Fix doxygen to use new macro conventions (da455e9)
+
+ Bugfixes:
+ o Do not use system EAI/AI values if we are not using the system getaddrinfo. (7bcac07)
+
+ Sample Code:
+ o Fix up sample/event-test.c to use newer interfaces and make it actually work. (19bab4f Ross Lagerwall)
+ o On Unix, remove event.fifo left by sample/event-test.c. (c0dacd2 Ross Lagerwall)
+ o Rename event-test.c to event-read-fifo.c. (a5b370a Ross Lagerwall)
+ o event-read-fifo: Use EV_PERSIST appropriately (24dab0b)
+
+
projects / libevent / commitdiff