libevent-2.1.12-stable
bufferevent.h
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1 /*
2  * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  * derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 #ifndef EVENT2_BUFFEREVENT_H_INCLUDED_
28 #define EVENT2_BUFFEREVENT_H_INCLUDED_
29 
77 #include <event2/visibility.h>
78 
79 #ifdef __cplusplus
80 extern "C" {
81 #endif
82 
83 #include <event2/event-config.h>
84 #ifdef EVENT__HAVE_SYS_TYPES_H
85 #include <sys/types.h>
86 #endif
87 #ifdef EVENT__HAVE_SYS_TIME_H
88 #include <sys/time.h>
89 #endif
90 
91 /* For int types. */
92 #include <event2/util.h>
93 
100 #define BEV_EVENT_READING 0x01
101 #define BEV_EVENT_WRITING 0x02
102 #define BEV_EVENT_EOF 0x10
103 #define BEV_EVENT_ERROR 0x20
104 #define BEV_EVENT_TIMEOUT 0x40
105 #define BEV_EVENT_CONNECTED 0x80
114 #ifdef EVENT_IN_DOXYGEN_
115 {}
116 #endif
117 ;
118 struct event_base;
119 struct evbuffer;
120 struct sockaddr;
121 
135 typedef void (*bufferevent_data_cb)(struct bufferevent *bev, void *ctx);
136 
154 typedef void (*bufferevent_event_cb)(struct bufferevent *bev, short what, void *ctx);
155 
161 
165 
168 
173  BEV_OPT_UNLOCK_CALLBACKS = (1<<3)
174 };
175 
189 EVENT2_EXPORT_SYMBOL
190 struct bufferevent *bufferevent_socket_new(struct event_base *base, evutil_socket_t fd, int options);
191 
211 EVENT2_EXPORT_SYMBOL
212 int bufferevent_socket_connect(struct bufferevent *, const struct sockaddr *, int);
213 
214 struct evdns_base;
241 EVENT2_EXPORT_SYMBOL
243  struct evdns_base *, int, const char *, int);
244 
253 EVENT2_EXPORT_SYMBOL
255 
267 EVENT2_EXPORT_SYMBOL
268 int bufferevent_base_set(struct event_base *base, struct bufferevent *bufev);
269 
273 EVENT2_EXPORT_SYMBOL
275 
285 EVENT2_EXPORT_SYMBOL
286 int bufferevent_priority_set(struct bufferevent *bufev, int pri);
287 
293 EVENT2_EXPORT_SYMBOL
294 int bufferevent_get_priority(const struct bufferevent *bufev);
295 
304 EVENT2_EXPORT_SYMBOL
305 void bufferevent_free(struct bufferevent *bufev);
306 
307 
322 EVENT2_EXPORT_SYMBOL
323 void bufferevent_setcb(struct bufferevent *bufev,
325  bufferevent_event_cb eventcb, void *cbarg);
326 
341 EVENT2_EXPORT_SYMBOL
342 void bufferevent_getcb(struct bufferevent *bufev,
343  bufferevent_data_cb *readcb_ptr,
344  bufferevent_data_cb *writecb_ptr,
345  bufferevent_event_cb *eventcb_ptr,
346  void **cbarg_ptr);
347 
355 EVENT2_EXPORT_SYMBOL
357 
362 EVENT2_EXPORT_SYMBOL
364 
369 EVENT2_EXPORT_SYMBOL
371 
385 EVENT2_EXPORT_SYMBOL
386 int bufferevent_write(struct bufferevent *bufev,
387  const void *data, size_t size);
388 
389 
399 EVENT2_EXPORT_SYMBOL
400 int bufferevent_write_buffer(struct bufferevent *bufev, struct evbuffer *buf);
401 
402 
413 EVENT2_EXPORT_SYMBOL
414 size_t bufferevent_read(struct bufferevent *bufev, void *data, size_t size);
415 
424 EVENT2_EXPORT_SYMBOL
425 int bufferevent_read_buffer(struct bufferevent *bufev, struct evbuffer *buf);
426 
436 EVENT2_EXPORT_SYMBOL
438 
451 EVENT2_EXPORT_SYMBOL
453 
462 EVENT2_EXPORT_SYMBOL
463 int bufferevent_enable(struct bufferevent *bufev, short event);
464 
473 EVENT2_EXPORT_SYMBOL
474 int bufferevent_disable(struct bufferevent *bufev, short event);
475 
482 EVENT2_EXPORT_SYMBOL
484 
511 EVENT2_EXPORT_SYMBOL
513  const struct timeval *timeout_read, const struct timeval *timeout_write);
514 
536 EVENT2_EXPORT_SYMBOL
537 void bufferevent_setwatermark(struct bufferevent *bufev, short events,
538  size_t lowmark, size_t highmark);
539 
550 EVENT2_EXPORT_SYMBOL
551 int bufferevent_getwatermark(struct bufferevent *bufev, short events,
552  size_t *lowmark, size_t *highmark);
553 
558 EVENT2_EXPORT_SYMBOL
559 void bufferevent_lock(struct bufferevent *bufev);
560 
565 EVENT2_EXPORT_SYMBOL
566 void bufferevent_unlock(struct bufferevent *bufev);
567 
568 
577 EVENT2_EXPORT_SYMBOL
578 void bufferevent_incref(struct bufferevent *bufev);
579 
591 EVENT2_EXPORT_SYMBOL
592 int bufferevent_decref(struct bufferevent *bufev);
593 
601 
604 
606  BEV_FINISHED = 2
607 };
608 
617 EVENT2_EXPORT_SYMBOL
618 int bufferevent_flush(struct bufferevent *bufev,
619  short iotype,
620  enum bufferevent_flush_mode mode);
621 
629 
632 
633  /* (Note: for internal reasons, these need to be disjoint from
634  * bufferevent_options, except when they mean the same thing. */
635 };
636 
648 EVENT2_EXPORT_SYMBOL
649 void bufferevent_trigger(struct bufferevent *bufev, short iotype,
650  int options);
651 
661 EVENT2_EXPORT_SYMBOL
662 void bufferevent_trigger_event(struct bufferevent *bufev, short what,
663  int options);
664 
675  BEV_OK = 0,
676 
679 
682  BEV_ERROR = 2
683 };
684 
704  struct evbuffer *src, struct evbuffer *dst, ev_ssize_t dst_limit,
705  enum bufferevent_flush_mode mode, void *ctx);
706 
720 EVENT2_EXPORT_SYMBOL
721 struct bufferevent *
723  bufferevent_filter_cb input_filter,
724  bufferevent_filter_cb output_filter,
725  int options,
726  void (*free_context)(void *),
727  void *ctx);
740 EVENT2_EXPORT_SYMBOL
741 int bufferevent_pair_new(struct event_base *base, int options,
742  struct bufferevent *pair[2]);
743 
748 EVENT2_EXPORT_SYMBOL
750 
755 struct ev_token_bucket_cfg;
756 
761 struct bufferevent_rate_limit_group;
762 
764 #define EV_RATE_LIMIT_MAX EV_SSIZE_MAX
765 
782 EVENT2_EXPORT_SYMBOL
783 struct ev_token_bucket_cfg *ev_token_bucket_cfg_new(
784  size_t read_rate, size_t read_burst,
785  size_t write_rate, size_t write_burst,
786  const struct timeval *tick_len);
787 
793 EVENT2_EXPORT_SYMBOL
794 void ev_token_bucket_cfg_free(struct ev_token_bucket_cfg *cfg);
795 
807 EVENT2_EXPORT_SYMBOL
809  struct ev_token_bucket_cfg *cfg);
810 
828 EVENT2_EXPORT_SYMBOL
829 struct bufferevent_rate_limit_group *bufferevent_rate_limit_group_new(
830  struct event_base *base,
831  const struct ev_token_bucket_cfg *cfg);
837 EVENT2_EXPORT_SYMBOL
839  struct bufferevent_rate_limit_group *,
840  const struct ev_token_bucket_cfg *);
841 
858 EVENT2_EXPORT_SYMBOL
860  struct bufferevent_rate_limit_group *, size_t);
861 
866 EVENT2_EXPORT_SYMBOL
867 void bufferevent_rate_limit_group_free(struct bufferevent_rate_limit_group *);
868 
879 EVENT2_EXPORT_SYMBOL
881  struct bufferevent_rate_limit_group *g);
882 
884 EVENT2_EXPORT_SYMBOL
886 
894 EVENT2_EXPORT_SYMBOL
895 int bufferevent_set_max_single_read(struct bufferevent *bev, size_t size);
896 
904 EVENT2_EXPORT_SYMBOL
905 int bufferevent_set_max_single_write(struct bufferevent *bev, size_t size);
906 
908 EVENT2_EXPORT_SYMBOL
910 
912 EVENT2_EXPORT_SYMBOL
914 
926 EVENT2_EXPORT_SYMBOL
927 ev_ssize_t bufferevent_get_read_limit(struct bufferevent *bev);
928 EVENT2_EXPORT_SYMBOL
929 ev_ssize_t bufferevent_get_write_limit(struct bufferevent *bev);
932 EVENT2_EXPORT_SYMBOL
933 ev_ssize_t bufferevent_get_max_to_read(struct bufferevent *bev);
934 EVENT2_EXPORT_SYMBOL
935 ev_ssize_t bufferevent_get_max_to_write(struct bufferevent *bev);
936 
937 EVENT2_EXPORT_SYMBOL
938 const struct ev_token_bucket_cfg *bufferevent_get_token_bucket_cfg(const struct bufferevent * bev);
939 
949 EVENT2_EXPORT_SYMBOL
950 ev_ssize_t bufferevent_rate_limit_group_get_read_limit(
951  struct bufferevent_rate_limit_group *);
952 EVENT2_EXPORT_SYMBOL
953 ev_ssize_t bufferevent_rate_limit_group_get_write_limit(
954  struct bufferevent_rate_limit_group *);
971 EVENT2_EXPORT_SYMBOL
972 int bufferevent_decrement_read_limit(struct bufferevent *bev, ev_ssize_t decr);
973 EVENT2_EXPORT_SYMBOL
974 int bufferevent_decrement_write_limit(struct bufferevent *bev, ev_ssize_t decr);
990 EVENT2_EXPORT_SYMBOL
991 int bufferevent_rate_limit_group_decrement_read(
992  struct bufferevent_rate_limit_group *, ev_ssize_t);
993 EVENT2_EXPORT_SYMBOL
994 int bufferevent_rate_limit_group_decrement_write(
995  struct bufferevent_rate_limit_group *, ev_ssize_t);
1005 EVENT2_EXPORT_SYMBOL
1007  struct bufferevent_rate_limit_group *grp,
1008  ev_uint64_t *total_read_out, ev_uint64_t *total_written_out);
1009 
1015 EVENT2_EXPORT_SYMBOL
1016 void
1018  struct bufferevent_rate_limit_group *grp);
1019 
1020 #ifdef __cplusplus
1021 }
1022 #endif
1023 
1024 #endif /* EVENT2_BUFFEREVENT_H_INCLUDED_ */
EVENT2_EXPORT_SYMBOL int bufferevent_get_priority(const struct bufferevent *bufev)
Return the priority of a bufferevent.
EVENT2_EXPORT_SYMBOL void bufferevent_setcb(struct bufferevent *bufev, bufferevent_data_cb readcb, bufferevent_data_cb writecb, bufferevent_event_cb eventcb, void *cbarg)
Changes the callbacks for a bufferevent.
EVENT2_EXPORT_SYMBOL void bufferevent_rate_limit_group_reset_totals(struct bufferevent_rate_limit_group *grp)
Reset the total bytes read/written on a group.
EVENT2_EXPORT_SYMBOL struct event_base * bufferevent_get_base(struct bufferevent *bev)
Return the event_base used by a bufferevent.
bufferevent_filter_result
Values that filters can return.
Definition: bufferevent.h:673
@ BEV_ERROR
the filter encountered a critical error, no further data can be processed.
Definition: bufferevent.h:682
@ BEV_NEED_MORE
the filter needs to read more data before output
Definition: bufferevent.h:678
@ BEV_OK
everything is okay
Definition: bufferevent.h:675
EVENT2_EXPORT_SYMBOL void bufferevent_unlock(struct bufferevent *bufev)
Release the lock on a bufferevent.
EVENT2_EXPORT_SYMBOL int bufferevent_rate_limit_group_set_cfg(struct bufferevent_rate_limit_group *, const struct ev_token_bucket_cfg *)
Change the rate-limiting settings for a given rate-limiting group.
EVENT2_EXPORT_SYMBOL void bufferevent_incref(struct bufferevent *bufev)
Public interface to manually increase the reference count of a bufferevent this is useful in situatio...
EVENT2_EXPORT_SYMBOL int bufferevent_priority_set(struct bufferevent *bufev, int pri)
Assign a priority to a bufferevent.
EVENT2_EXPORT_SYMBOL struct ev_token_bucket_cfg * ev_token_bucket_cfg_new(size_t read_rate, size_t read_burst, size_t write_rate, size_t write_burst, const struct timeval *tick_len)
Initialize and return a new object to configure the rate-limiting behavior of bufferevents.
EVENT2_EXPORT_SYMBOL ev_ssize_t bufferevent_get_max_single_read(struct bufferevent *bev)
Get the current size limit for single read operation.
EVENT2_EXPORT_SYMBOL struct bufferevent * bufferevent_pair_get_partner(struct bufferevent *bev)
Given one bufferevent returned by bufferevent_pair_new(), returns the other one if it still exists.
EVENT2_EXPORT_SYMBOL int bufferevent_decref(struct bufferevent *bufev)
Public interface to manually decrement the reference count of a bufferevent.
EVENT2_EXPORT_SYMBOL int bufferevent_remove_from_rate_limit_group(struct bufferevent *bev)
Remove 'bev' from its current rate-limit group (if any).
EVENT2_EXPORT_SYMBOL struct bufferevent * bufferevent_filter_new(struct bufferevent *underlying, bufferevent_filter_cb input_filter, bufferevent_filter_cb output_filter, int options, void(*free_context)(void *), void *ctx)
Allocate a new filtering bufferevent on top of an existing bufferevent.
void(* bufferevent_event_cb)(struct bufferevent *bev, short what, void *ctx)
An event/error callback for a bufferevent.
Definition: bufferevent.h:154
EVENT2_EXPORT_SYMBOL struct evbuffer * bufferevent_get_input(struct bufferevent *bufev)
Returns the input buffer.
EVENT2_EXPORT_SYMBOL struct bufferevent * bufferevent_get_underlying(struct bufferevent *bufev)
Returns the underlying bufferevent associated with a bufferevent (if the bufferevent is a wrapper),...
EVENT2_EXPORT_SYMBOL int bufferevent_rate_limit_group_set_min_share(struct bufferevent_rate_limit_group *, size_t)
Change the smallest quantum we're willing to allocate to any single bufferevent in a group for readin...
EVENT2_EXPORT_SYMBOL int bufferevent_add_to_rate_limit_group(struct bufferevent *bev, struct bufferevent_rate_limit_group *g)
Add 'bev' to the list of bufferevents whose aggregate reading and writing is restricted by 'g'.
EVENT2_EXPORT_SYMBOL int bufferevent_flush(struct bufferevent *bufev, short iotype, enum bufferevent_flush_mode mode)
Triggers the bufferevent to produce more data if possible.
EVENT2_EXPORT_SYMBOL int bufferevent_disable(struct bufferevent *bufev, short event)
Disable a bufferevent.
EVENT2_EXPORT_SYMBOL evutil_socket_t bufferevent_getfd(struct bufferevent *bufev)
Returns the file descriptor associated with a bufferevent, or -1 if no file descriptor is associated ...
EVENT2_EXPORT_SYMBOL void bufferevent_rate_limit_group_free(struct bufferevent_rate_limit_group *)
Free a rate-limiting group.
EVENT2_EXPORT_SYMBOL int bufferevent_socket_connect(struct bufferevent *, const struct sockaddr *, int)
Launch a connect() attempt with a socket-based bufferevent.
EVENT2_EXPORT_SYMBOL int bufferevent_setfd(struct bufferevent *bufev, evutil_socket_t fd)
Changes the file descriptor on which the bufferevent operates.
EVENT2_EXPORT_SYMBOL struct bufferevent * bufferevent_socket_new(struct event_base *base, evutil_socket_t fd, int options)
Create a new socket bufferevent over an existing socket.
bufferevent_trigger_options
Flags for bufferevent_trigger(_event) that modify when and how to trigger the callback.
Definition: bufferevent.h:626
@ BEV_TRIG_IGNORE_WATERMARKS
trigger the callback regardless of the watermarks
Definition: bufferevent.h:628
@ BEV_TRIG_DEFER_CALLBACKS
defer even if the callbacks are not
Definition: bufferevent.h:631
EVENT2_EXPORT_SYMBOL int bufferevent_write(struct bufferevent *bufev, const void *data, size_t size)
Write data to a bufferevent buffer.
EVENT2_EXPORT_SYMBOL void ev_token_bucket_cfg_free(struct ev_token_bucket_cfg *cfg)
Free all storage held in 'cfg'.
EVENT2_EXPORT_SYMBOL void bufferevent_lock(struct bufferevent *bufev)
Acquire the lock on a bufferevent.
EVENT2_EXPORT_SYMBOL void bufferevent_free(struct bufferevent *bufev)
Deallocate the storage associated with a bufferevent structure.
EVENT2_EXPORT_SYMBOL int bufferevent_set_max_single_write(struct bufferevent *bev, size_t size)
Set the size limit for single write operation.
EVENT2_EXPORT_SYMBOL size_t bufferevent_read(struct bufferevent *bufev, void *data, size_t size)
Read data from a bufferevent buffer.
bufferevent_options
Options that can be specified when creating a bufferevent.
Definition: bufferevent.h:157
@ BEV_OPT_DEFER_CALLBACKS
If set, callbacks are run deferred in the event loop.
Definition: bufferevent.h:167
@ BEV_OPT_CLOSE_ON_FREE
If set, we close the underlying file descriptor/bufferevent/whatever when this bufferevent is freed.
Definition: bufferevent.h:160
@ BEV_OPT_UNLOCK_CALLBACKS
If set, callbacks are executed without locks being held on the bufferevent.
Definition: bufferevent.h:173
@ BEV_OPT_THREADSAFE
If set, and threading is enabled, operations on this bufferevent are protected by a lock.
Definition: bufferevent.h:164
EVENT2_EXPORT_SYMBOL int bufferevent_socket_get_dns_error(struct bufferevent *bev)
Return the error code for the last failed DNS lookup attempt made by bufferevent_socket_connect_hostn...
EVENT2_EXPORT_SYMBOL int bufferevent_enable(struct bufferevent *bufev, short event)
Enable a bufferevent.
EVENT2_EXPORT_SYMBOL short bufferevent_get_enabled(struct bufferevent *bufev)
Return the events that are enabled on a given bufferevent.
EVENT2_EXPORT_SYMBOL int bufferevent_read_buffer(struct bufferevent *bufev, struct evbuffer *buf)
Read data from a bufferevent buffer into an evbuffer.
bufferevent_flush_mode
Flags that can be passed into filters to let them know how to deal with the incoming data.
Definition: bufferevent.h:598
@ BEV_FLUSH
want to checkpoint all data sent.
Definition: bufferevent.h:603
@ BEV_NORMAL
usually set when processing data
Definition: bufferevent.h:600
@ BEV_FINISHED
encountered EOF on read or done sending data
Definition: bufferevent.h:606
EVENT2_EXPORT_SYMBOL int bufferevent_set_max_single_read(struct bufferevent *bev, size_t size)
Set the size limit for single read operation.
EVENT2_EXPORT_SYMBOL int bufferevent_pair_new(struct event_base *base, int options, struct bufferevent *pair[2])
Allocate a pair of linked bufferevents.
EVENT2_EXPORT_SYMBOL struct evbuffer * bufferevent_get_output(struct bufferevent *bufev)
Returns the output buffer.
EVENT2_EXPORT_SYMBOL void bufferevent_rate_limit_group_get_totals(struct bufferevent_rate_limit_group *grp, ev_uint64_t *total_read_out, ev_uint64_t *total_written_out)
Inspect the total bytes read/written on a group.
EVENT2_EXPORT_SYMBOL int bufferevent_write_buffer(struct bufferevent *bufev, struct evbuffer *buf)
Write data from an evbuffer to a bufferevent buffer.
EVENT2_EXPORT_SYMBOL ev_ssize_t bufferevent_get_max_single_write(struct bufferevent *bev)
Get the current size limit for single write operation.
EVENT2_EXPORT_SYMBOL int bufferevent_base_set(struct event_base *base, struct bufferevent *bufev)
Assign a bufferevent to a specific event_base.
void(* bufferevent_data_cb)(struct bufferevent *bev, void *ctx)
A read or write callback for a bufferevent.
Definition: bufferevent.h:135
EVENT2_EXPORT_SYMBOL int bufferevent_set_rate_limit(struct bufferevent *bev, struct ev_token_bucket_cfg *cfg)
Set the rate-limit of a the bufferevent 'bev' to the one specified in 'cfg'.
enum bufferevent_filter_result(* bufferevent_filter_cb)(struct evbuffer *src, struct evbuffer *dst, ev_ssize_t dst_limit, enum bufferevent_flush_mode mode, void *ctx)
A callback function to implement a filter for a bufferevent.
Definition: bufferevent.h:703
EVENT2_EXPORT_SYMBOL void bufferevent_setwatermark(struct bufferevent *bufev, short events, size_t lowmark, size_t highmark)
Sets the watermarks for read and write events.
EVENT2_EXPORT_SYMBOL int bufferevent_getwatermark(struct bufferevent *bufev, short events, size_t *lowmark, size_t *highmark)
Retrieves the watermarks for read or write events.
EVENT2_EXPORT_SYMBOL void bufferevent_trigger(struct bufferevent *bufev, short iotype, int options)
Triggers bufferevent data callbacks.
EVENT2_EXPORT_SYMBOL void bufferevent_getcb(struct bufferevent *bufev, bufferevent_data_cb *readcb_ptr, bufferevent_data_cb *writecb_ptr, bufferevent_event_cb *eventcb_ptr, void **cbarg_ptr)
Retrieves the callbacks for a bufferevent.
EVENT2_EXPORT_SYMBOL void bufferevent_trigger_event(struct bufferevent *bufev, short what, int options)
Triggers the bufferevent event callback.
EVENT2_EXPORT_SYMBOL int bufferevent_set_timeouts(struct bufferevent *bufev, const struct timeval *timeout_read, const struct timeval *timeout_write)
Set the read and write timeout for a bufferevent.
EVENT2_EXPORT_SYMBOL int bufferevent_socket_connect_hostname(struct bufferevent *, struct evdns_base *, int, const char *, int)
Resolve the hostname 'hostname' and connect to it as with bufferevent_socket_connect().
EVENT2_EXPORT_SYMBOL struct bufferevent_rate_limit_group * bufferevent_rate_limit_group_new(struct event_base *base, const struct ev_token_bucket_cfg *cfg)
Create a new rate-limit group for bufferevents.
An opaque type for handling buffered IO.
Definition: bufferevent.h:115
An evbuffer is an opaque data type for efficiently buffering data to be sent or received on the netwo...
Definition: buffer.h:99
Structure to hold information and state for a Libevent dispatch loop.
Definition: event.h:219
Structure to represent a single event.
Definition: event.h:278
Common convenience functions for cross-platform portability and related socket manipulations.
#define evutil_socket_t
A type wide enough to hold the output of "socket()" or "accept()".
Definition: util.h:310