diff options
Diffstat (limited to 'sntp/libevent/whatsnew-2.1.txt')
| -rw-r--r-- | sntp/libevent/whatsnew-2.1.txt | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/sntp/libevent/whatsnew-2.1.txt b/sntp/libevent/whatsnew-2.1.txt index c0ee7cf..0be54ae 100644 --- a/sntp/libevent/whatsnew-2.1.txt +++ b/sntp/libevent/whatsnew-2.1.txt @@ -41,7 +41,7 @@ We don't try to do binary compatibility except within stable release series, so binaries linked against any version of Libevent 2.0 will - probably need to be recompiled against Libevent 2.1.3-alpha if you + probably need to be recompiled against Libevent 2.1.4-alpha if you want to use it. It is probable that we'll break binary compatibility again before Libevent 2.1 is stable. @@ -63,6 +63,9 @@ surrounded with appropriate #ifdef lines to keep your IDE from getting upset. + There is now an alternative cmake-based build process; cmake users + should see the relevant sections in the README. + 1.2. New functions for events and the event loop @@ -146,6 +149,19 @@ that's a no-op in past versions of Libevent, and we don't want to break compatibility.) + You can use the new event_base_get_num_events() function to find the + number of events active or pending on an event_base. To find the + largest number of events that there have been since the last call, use + event_base_get_max_events(). + + You can now activate all the events waiting for a given fd or signal + using the event_base_active_by_fd() and event_base_active_by_signal() + APIs. + + On backends that support it (currently epoll), there is now an + EV_CLOSED flag that programs can use to detect when a socket has + closed without having to read all the bytes until receiving an EOF. + 1.3. Event finalization [NOTE: This is an experimental feature in Libevent 2.1.3-alpha. Though @@ -325,6 +341,13 @@ You can find the priority at which a bufferevent runs with bufferevent_get_priority(). + The function bufferevent_get_token_bucket_cfg() can retrieve the + rate-limit settings for a bufferevent; bufferevent_getwatermark() can + return a bufferevent's current watermark settings. + + You can manually trigger a bufferevent's callbacks via + bufferevent_trigger() and bufferevent_trigger_event(). + 1.7. New functions and features: evdns The previous evdns interface used an "open a test UDP socket" trick in @@ -340,6 +363,9 @@ flag, which tells the evdns_base that it should not prevent Libevent from exiting while it has no DNS requests in progress. + There is a new evdns_base_clear_host_addresses() function to remove + all the /etc/hosts addresses registered with an evdns instance. + 1.8. New functions and features: evconnlistener Libevent 2.1 adds the following evconnlistener flags: @@ -392,6 +418,31 @@ and actually reports the error code and lets you figure out which request failed. + You can navigate from an evhttp_connection back to its evhttp with the + new evhttp_connection_get_server() function. + + You can override the default HTTP Content-Type with the new + evhttp_set_default_content_type() function + + There's a new evhttp_connection_get_addr() API to return the peer + address of an evhttp_connection. + + The new evhttp_send_reply_chunk_with_cb() is a variant of + evhttp_send_reply_chunk() with a callback to be invoked when the + chunk is sent. + + The evhttp_request_set_header_cb() facility adds a callback to be + invoked while parsing headers. + + The evhttp_request_set_on_complete_cb() facility adds a callback to be + invoked on request completion. + +1.10. New functions and features: evutil + + There's a function "evutil_secure_rng_set_urandom_device_file()" that + you can use to override the default file that Libevent uses to seed + its (sort-of) secure RNG. + 2. Cross-platform performance improvements 2.1. Better data structures |