| /* |
| * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> |
| * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef _EVENT2_EVENT_STRUCT_H_ |
| #define _EVENT2_EVENT_STRUCT_H_ |
| |
| /** @file event2/event_struct.h |
| |
| Structures used by event.h. Using these structures directly WILL harm |
| forward compatibility: be careful. |
| |
| No field declared in this file should be used directly in user code. Except |
| for historical reasons, these fields would not be exposed at all. |
| */ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <event2/event-config.h> |
| #ifdef _EVENT_HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #ifdef _EVENT_HAVE_SYS_TIME_H |
| #include <sys/time.h> |
| #endif |
| |
| /* For int types. */ |
| #include <event2/util.h> |
| |
| /* For evkeyvalq */ |
| #include <event2/keyvalq_struct.h> |
| |
| #define EVLIST_TIMEOUT 0x01 |
| #define EVLIST_INSERTED 0x02 |
| #define EVLIST_SIGNAL 0x04 |
| #define EVLIST_ACTIVE 0x08 |
| #define EVLIST_INTERNAL 0x10 |
| #define EVLIST_INIT 0x80 |
| |
| /* EVLIST_X_ Private space: 0x1000-0xf000 */ |
| #define EVLIST_ALL (0xf000 | 0x9f) |
| |
| /* Fix so that people don't have to run with <sys/queue.h> */ |
| #ifndef TAILQ_ENTRY |
| #define _EVENT_DEFINED_TQENTRY |
| #define TAILQ_ENTRY(type) \ |
| struct { \ |
| struct type *tqe_next; /* next element */ \ |
| struct type **tqe_prev; /* address of previous next element */ \ |
| } |
| #endif /* !TAILQ_ENTRY */ |
| |
| #ifndef TAILQ_HEAD |
| #define _EVENT_DEFINED_TQHEAD |
| #define TAILQ_HEAD(name, type) \ |
| struct name { \ |
| struct type *tqh_first; \ |
| struct type **tqh_last; \ |
| } |
| #endif |
| |
| struct event_base; |
| struct event { |
| TAILQ_ENTRY(event) ev_active_next; |
| TAILQ_ENTRY(event) ev_next; |
| /* for managing timeouts */ |
| union { |
| TAILQ_ENTRY(event) ev_next_with_common_timeout; |
| int min_heap_idx; |
| } ev_timeout_pos; |
| evutil_socket_t ev_fd; |
| |
| struct event_base *ev_base; |
| |
| union { |
| /* used for io events */ |
| struct { |
| TAILQ_ENTRY(event) ev_io_next; |
| struct timeval ev_timeout; |
| } ev_io; |
| |
| /* used by signal events */ |
| struct { |
| TAILQ_ENTRY(event) ev_signal_next; |
| short ev_ncalls; |
| /* Allows deletes in callback */ |
| short *ev_pncalls; |
| } ev_signal; |
| } _ev; |
| |
| short ev_events; |
| short ev_res; /* result passed to event callback */ |
| short ev_flags; |
| ev_uint8_t ev_pri; /* smaller numbers are higher priority */ |
| ev_uint8_t ev_closure; |
| struct timeval ev_timeout; |
| |
| /* allows us to adopt for different types of events */ |
| void (*ev_callback)(evutil_socket_t, short, void *arg); |
| void *ev_arg; |
| }; |
| |
| TAILQ_HEAD (event_list, event); |
| |
| #ifdef _EVENT_DEFINED_TQENTRY |
| #undef TAILQ_ENTRY |
| #endif |
| |
| #ifdef _EVENT_DEFINED_TQHEAD |
| #undef TAILQ_HEAD |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _EVENT2_EVENT_STRUCT_H_ */ |