1*c43e99fdSEd Maste /* 2*c43e99fdSEd Maste * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu> 3*c43e99fdSEd Maste * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 4*c43e99fdSEd Maste * 5*c43e99fdSEd Maste * Redistribution and use in source and binary forms, with or without 6*c43e99fdSEd Maste * modification, are permitted provided that the following conditions 7*c43e99fdSEd Maste * are met: 8*c43e99fdSEd Maste * 1. Redistributions of source code must retain the above copyright 9*c43e99fdSEd Maste * notice, this list of conditions and the following disclaimer. 10*c43e99fdSEd Maste * 2. Redistributions in binary form must reproduce the above copyright 11*c43e99fdSEd Maste * notice, this list of conditions and the following disclaimer in the 12*c43e99fdSEd Maste * documentation and/or other materials provided with the distribution. 13*c43e99fdSEd Maste * 3. The name of the author may not be used to endorse or promote products 14*c43e99fdSEd Maste * derived from this software without specific prior written permission. 15*c43e99fdSEd Maste * 16*c43e99fdSEd Maste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17*c43e99fdSEd Maste * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18*c43e99fdSEd Maste * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19*c43e99fdSEd Maste * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20*c43e99fdSEd Maste * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21*c43e99fdSEd Maste * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22*c43e99fdSEd Maste * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23*c43e99fdSEd Maste * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24*c43e99fdSEd Maste * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25*c43e99fdSEd Maste * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*c43e99fdSEd Maste */ 27*c43e99fdSEd Maste #ifndef EVENT2_EVENT_STRUCT_H_INCLUDED_ 28*c43e99fdSEd Maste #define EVENT2_EVENT_STRUCT_H_INCLUDED_ 29*c43e99fdSEd Maste 30*c43e99fdSEd Maste /** @file event2/event_struct.h 31*c43e99fdSEd Maste 32*c43e99fdSEd Maste Structures used by event.h. Using these structures directly WILL harm 33*c43e99fdSEd Maste forward compatibility: be careful. 34*c43e99fdSEd Maste 35*c43e99fdSEd Maste No field declared in this file should be used directly in user code. Except 36*c43e99fdSEd Maste for historical reasons, these fields would not be exposed at all. 37*c43e99fdSEd Maste */ 38*c43e99fdSEd Maste 39*c43e99fdSEd Maste #ifdef __cplusplus 40*c43e99fdSEd Maste extern "C" { 41*c43e99fdSEd Maste #endif 42*c43e99fdSEd Maste 43*c43e99fdSEd Maste #include <event2/event-config.h> 44*c43e99fdSEd Maste #ifdef EVENT__HAVE_SYS_TYPES_H 45*c43e99fdSEd Maste #include <sys/types.h> 46*c43e99fdSEd Maste #endif 47*c43e99fdSEd Maste #ifdef EVENT__HAVE_SYS_TIME_H 48*c43e99fdSEd Maste #include <sys/time.h> 49*c43e99fdSEd Maste #endif 50*c43e99fdSEd Maste 51*c43e99fdSEd Maste /* For int types. */ 52*c43e99fdSEd Maste #include <event2/util.h> 53*c43e99fdSEd Maste 54*c43e99fdSEd Maste /* For evkeyvalq */ 55*c43e99fdSEd Maste #include <event2/keyvalq_struct.h> 56*c43e99fdSEd Maste 57*c43e99fdSEd Maste #define EVLIST_TIMEOUT 0x01 58*c43e99fdSEd Maste #define EVLIST_INSERTED 0x02 59*c43e99fdSEd Maste #define EVLIST_SIGNAL 0x04 60*c43e99fdSEd Maste #define EVLIST_ACTIVE 0x08 61*c43e99fdSEd Maste #define EVLIST_INTERNAL 0x10 62*c43e99fdSEd Maste #define EVLIST_ACTIVE_LATER 0x20 63*c43e99fdSEd Maste #define EVLIST_FINALIZING 0x40 64*c43e99fdSEd Maste #define EVLIST_INIT 0x80 65*c43e99fdSEd Maste 66*c43e99fdSEd Maste #define EVLIST_ALL 0xff 67*c43e99fdSEd Maste 68*c43e99fdSEd Maste /* Fix so that people don't have to run with <sys/queue.h> */ 69*c43e99fdSEd Maste #ifndef TAILQ_ENTRY 70*c43e99fdSEd Maste #define EVENT_DEFINED_TQENTRY_ 71*c43e99fdSEd Maste #define TAILQ_ENTRY(type) \ 72*c43e99fdSEd Maste struct { \ 73*c43e99fdSEd Maste struct type *tqe_next; /* next element */ \ 74*c43e99fdSEd Maste struct type **tqe_prev; /* address of previous next element */ \ 75*c43e99fdSEd Maste } 76*c43e99fdSEd Maste #endif /* !TAILQ_ENTRY */ 77*c43e99fdSEd Maste 78*c43e99fdSEd Maste #ifndef TAILQ_HEAD 79*c43e99fdSEd Maste #define EVENT_DEFINED_TQHEAD_ 80*c43e99fdSEd Maste #define TAILQ_HEAD(name, type) \ 81*c43e99fdSEd Maste struct name { \ 82*c43e99fdSEd Maste struct type *tqh_first; \ 83*c43e99fdSEd Maste struct type **tqh_last; \ 84*c43e99fdSEd Maste } 85*c43e99fdSEd Maste #endif 86*c43e99fdSEd Maste 87*c43e99fdSEd Maste /* Fix so that people don't have to run with <sys/queue.h> */ 88*c43e99fdSEd Maste #ifndef LIST_ENTRY 89*c43e99fdSEd Maste #define EVENT_DEFINED_LISTENTRY_ 90*c43e99fdSEd Maste #define LIST_ENTRY(type) \ 91*c43e99fdSEd Maste struct { \ 92*c43e99fdSEd Maste struct type *le_next; /* next element */ \ 93*c43e99fdSEd Maste struct type **le_prev; /* address of previous next element */ \ 94*c43e99fdSEd Maste } 95*c43e99fdSEd Maste #endif /* !LIST_ENTRY */ 96*c43e99fdSEd Maste 97*c43e99fdSEd Maste #ifndef LIST_HEAD 98*c43e99fdSEd Maste #define EVENT_DEFINED_LISTHEAD_ 99*c43e99fdSEd Maste #define LIST_HEAD(name, type) \ 100*c43e99fdSEd Maste struct name { \ 101*c43e99fdSEd Maste struct type *lh_first; /* first element */ \ 102*c43e99fdSEd Maste } 103*c43e99fdSEd Maste #endif /* !LIST_HEAD */ 104*c43e99fdSEd Maste 105*c43e99fdSEd Maste struct event; 106*c43e99fdSEd Maste 107*c43e99fdSEd Maste struct event_callback { 108*c43e99fdSEd Maste TAILQ_ENTRY(event_callback) evcb_active_next; 109*c43e99fdSEd Maste short evcb_flags; 110*c43e99fdSEd Maste ev_uint8_t evcb_pri; /* smaller numbers are higher priority */ 111*c43e99fdSEd Maste ev_uint8_t evcb_closure; 112*c43e99fdSEd Maste /* allows us to adopt for different types of events */ 113*c43e99fdSEd Maste union { 114*c43e99fdSEd Maste void (*evcb_callback)(evutil_socket_t, short, void *); 115*c43e99fdSEd Maste void (*evcb_selfcb)(struct event_callback *, void *); 116*c43e99fdSEd Maste void (*evcb_evfinalize)(struct event *, void *); 117*c43e99fdSEd Maste void (*evcb_cbfinalize)(struct event_callback *, void *); 118*c43e99fdSEd Maste } evcb_cb_union; 119*c43e99fdSEd Maste void *evcb_arg; 120*c43e99fdSEd Maste }; 121*c43e99fdSEd Maste 122*c43e99fdSEd Maste struct event_base; 123*c43e99fdSEd Maste struct event { 124*c43e99fdSEd Maste struct event_callback ev_evcallback; 125*c43e99fdSEd Maste 126*c43e99fdSEd Maste /* for managing timeouts */ 127*c43e99fdSEd Maste union { 128*c43e99fdSEd Maste TAILQ_ENTRY(event) ev_next_with_common_timeout; 129*c43e99fdSEd Maste int min_heap_idx; 130*c43e99fdSEd Maste } ev_timeout_pos; 131*c43e99fdSEd Maste evutil_socket_t ev_fd; 132*c43e99fdSEd Maste 133*c43e99fdSEd Maste struct event_base *ev_base; 134*c43e99fdSEd Maste 135*c43e99fdSEd Maste union { 136*c43e99fdSEd Maste /* used for io events */ 137*c43e99fdSEd Maste struct { 138*c43e99fdSEd Maste LIST_ENTRY (event) ev_io_next; 139*c43e99fdSEd Maste struct timeval ev_timeout; 140*c43e99fdSEd Maste } ev_io; 141*c43e99fdSEd Maste 142*c43e99fdSEd Maste /* used by signal events */ 143*c43e99fdSEd Maste struct { 144*c43e99fdSEd Maste LIST_ENTRY (event) ev_signal_next; 145*c43e99fdSEd Maste short ev_ncalls; 146*c43e99fdSEd Maste /* Allows deletes in callback */ 147*c43e99fdSEd Maste short *ev_pncalls; 148*c43e99fdSEd Maste } ev_signal; 149*c43e99fdSEd Maste } ev_; 150*c43e99fdSEd Maste 151*c43e99fdSEd Maste short ev_events; 152*c43e99fdSEd Maste short ev_res; /* result passed to event callback */ 153*c43e99fdSEd Maste struct timeval ev_timeout; 154*c43e99fdSEd Maste }; 155*c43e99fdSEd Maste 156*c43e99fdSEd Maste TAILQ_HEAD (event_list, event); 157*c43e99fdSEd Maste 158*c43e99fdSEd Maste #ifdef EVENT_DEFINED_TQENTRY_ 159*c43e99fdSEd Maste #undef TAILQ_ENTRY 160*c43e99fdSEd Maste #endif 161*c43e99fdSEd Maste 162*c43e99fdSEd Maste #ifdef EVENT_DEFINED_TQHEAD_ 163*c43e99fdSEd Maste #undef TAILQ_HEAD 164*c43e99fdSEd Maste #endif 165*c43e99fdSEd Maste 166*c43e99fdSEd Maste LIST_HEAD (event_dlist, event); 167*c43e99fdSEd Maste 168*c43e99fdSEd Maste #ifdef EVENT_DEFINED_LISTENTRY_ 169*c43e99fdSEd Maste #undef LIST_ENTRY 170*c43e99fdSEd Maste #endif 171*c43e99fdSEd Maste 172*c43e99fdSEd Maste #ifdef EVENT_DEFINED_LISTHEAD_ 173*c43e99fdSEd Maste #undef LIST_HEAD 174*c43e99fdSEd Maste #endif 175*c43e99fdSEd Maste 176*c43e99fdSEd Maste #ifdef __cplusplus 177*c43e99fdSEd Maste } 178*c43e99fdSEd Maste #endif 179*c43e99fdSEd Maste 180*c43e99fdSEd Maste #endif /* EVENT2_EVENT_STRUCT_H_INCLUDED_ */ 181