1/* $NetBSD$ */ 2 3/* 4 * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (C) 1995-1999, 2001, 2003 Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* eventlib.h - exported interfaces for eventlib 21 * vix 09sep95 [initial] 22 * 23 * Id: eventlib.h,v 1.7 2008/11/14 02:36:51 marka Exp 24 */ 25 26#ifndef _EVENTLIB_H 27#define _EVENTLIB_H 28 29#include <sys/types.h> 30#include <sys/uio.h> 31#include <sys/time.h> 32#include <stdio.h> 33 34#include <isc/platform.h> 35 36#ifndef __P 37# define __EVENTLIB_P_DEFINED 38# ifdef __STDC__ 39# define __P(x) x 40# else 41# define __P(x) () 42# endif 43#endif 44 45/* In the absence of branded types... */ 46typedef struct { void *opaque; } evConnID; 47typedef struct { void *opaque; } evFileID; 48typedef struct { void *opaque; } evStreamID; 49typedef struct { void *opaque; } evTimerID; 50typedef struct { void *opaque; } evWaitID; 51typedef struct { void *opaque; } evContext; 52typedef struct { void *opaque; } evEvent; 53 54#define evInitID(id) ((id)->opaque = NULL) 55#define evTestID(id) ((id).opaque != NULL) 56 57typedef void (*evConnFunc)__P((evContext, void *, int, const void *, int, 58 const void *, int)); 59typedef void (*evFileFunc)__P((evContext, void *, int, int)); 60typedef void (*evStreamFunc)__P((evContext, void *, int, int)); 61typedef void (*evTimerFunc)__P((evContext, void *, 62 struct timespec, struct timespec)); 63typedef void (*evWaitFunc)__P((evContext, void *, const void *)); 64 65typedef struct { unsigned char mask[256/8]; } evByteMask; 66#define EV_BYTEMASK_BYTE(b) ((b) / 8) 67#define EV_BYTEMASK_MASK(b) (1 << ((b) % 8)) 68#define EV_BYTEMASK_SET(bm, b) \ 69 ((bm).mask[EV_BYTEMASK_BYTE(b)] |= EV_BYTEMASK_MASK(b)) 70#define EV_BYTEMASK_CLR(bm, b) \ 71 ((bm).mask[EV_BYTEMASK_BYTE(b)] &= ~EV_BYTEMASK_MASK(b)) 72#define EV_BYTEMASK_TST(bm, b) \ 73 ((bm).mask[EV_BYTEMASK_BYTE(b)] & EV_BYTEMASK_MASK(b)) 74 75#define EV_POLL 1 76#define EV_WAIT 2 77#define EV_NULL 4 78 79#define EV_READ 1 80#define EV_WRITE 2 81#define EV_EXCEPT 4 82 83#define EV_WASNONBLOCKING 8 /* Internal library use. */ 84 85/* eventlib.c */ 86#define evCreate __evCreate 87#define evSetDebug __evSetDebug 88#define evDestroy __evDestroy 89#define evGetNext __evGetNext 90#define evDispatch __evDispatch 91#define evDrop __evDrop 92#define evMainLoop __evMainLoop 93#define evHighestFD __evHighestFD 94#define evGetOption __evGetOption 95#define evSetOption __evSetOption 96 97int evCreate __P((evContext *)); 98void evSetDebug __P((evContext, int, FILE *)); 99int evDestroy __P((evContext)); 100int evGetNext __P((evContext, evEvent *, int)); 101int evDispatch __P((evContext, evEvent)); 102void evDrop __P((evContext, evEvent)); 103int evMainLoop __P((evContext)); 104int evHighestFD __P((evContext)); 105int evGetOption __P((evContext *, const char *, int *)); 106int evSetOption __P((evContext *, const char *, int)); 107 108/* ev_connects.c */ 109#define evListen __evListen 110#define evConnect __evConnect 111#define evCancelConn __evCancelConn 112#define evHold __evHold 113#define evUnhold __evUnhold 114#define evTryAccept __evTryAccept 115 116int evListen __P((evContext, int, int, evConnFunc, void *, evConnID *)); 117int evConnect __P((evContext, int, const void *, int, 118 evConnFunc, void *, evConnID *)); 119int evCancelConn __P((evContext, evConnID)); 120int evHold __P((evContext, evConnID)); 121int evUnhold __P((evContext, evConnID)); 122int evTryAccept __P((evContext, evConnID, int *)); 123 124/* ev_files.c */ 125#define evSelectFD __evSelectFD 126#define evDeselectFD __evDeselectFD 127 128int evSelectFD __P((evContext, int, int, evFileFunc, void *, evFileID *)); 129int evDeselectFD __P((evContext, evFileID)); 130 131/* ev_streams.c */ 132#define evConsIovec __evConsIovec 133#define evWrite __evWrite 134#define evRead __evRead 135#define evTimeRW __evTimeRW 136#define evUntimeRW __evUntimeRW 137#define evCancelRW __evCancelRW 138 139struct iovec evConsIovec __P((void *, size_t)); 140int evWrite __P((evContext, int, const struct iovec *, int, 141 evStreamFunc func, void *, evStreamID *)); 142int evRead __P((evContext, int, const struct iovec *, int, 143 evStreamFunc func, void *, evStreamID *)); 144int evTimeRW __P((evContext, evStreamID, evTimerID timer)); 145int evUntimeRW __P((evContext, evStreamID)); 146int evCancelRW __P((evContext, evStreamID)); 147 148/* ev_timers.c */ 149#define evConsTime __evConsTime 150#define evAddTime __evAddTime 151#define evSubTime __evSubTime 152#define evCmpTime __evCmpTime 153#define evTimeSpec __evTimeSpec 154#define evTimeVal __evTimeVal 155 156#define evNowTime __evNowTime 157#define evUTCTime __evUTCTime 158#define evLastEventTime __evLastEventTime 159#define evSetTimer __evSetTimer 160#define evClearTimer __evClearTimer 161#define evConfigTimer __evConfigTimer 162#define evResetTimer __evResetTimer 163#define evSetIdleTimer __evSetIdleTimer 164#define evClearIdleTimer __evClearIdleTimer 165#define evResetIdleTimer __evResetIdleTimer 166#define evTouchIdleTimer __evTouchIdleTimer 167 168struct timespec evConsTime __P((time_t sec, long nsec)); 169struct timespec evAddTime __P((struct timespec, struct timespec)); 170struct timespec evSubTime __P((struct timespec, struct timespec)); 171struct timespec evNowTime __P((void)); 172struct timespec evUTCTime __P((void)); 173struct timespec evLastEventTime __P((evContext)); 174struct timespec evTimeSpec __P((struct timeval)); 175struct timeval evTimeVal __P((struct timespec)); 176int evCmpTime __P((struct timespec, struct timespec)); 177int evSetTimer __P((evContext, evTimerFunc, void *, struct timespec, 178 struct timespec, evTimerID *)); 179int evClearTimer __P((evContext, evTimerID)); 180int evConfigTimer __P((evContext, evTimerID, const char *param, 181 int value)); 182int evResetTimer __P((evContext, evTimerID, evTimerFunc, void *, 183 struct timespec, struct timespec)); 184int evSetIdleTimer __P((evContext, evTimerFunc, void *, struct timespec, 185 evTimerID *)); 186int evClearIdleTimer __P((evContext, evTimerID)); 187int evResetIdleTimer __P((evContext, evTimerID, evTimerFunc, void *, 188 struct timespec)); 189int evTouchIdleTimer __P((evContext, evTimerID)); 190 191/* ev_waits.c */ 192#define evWaitFor __evWaitFor 193#define evDo __evDo 194#define evUnwait __evUnwait 195#define evDefer __evDefer 196 197int evWaitFor __P((evContext, const void *, evWaitFunc, void *, evWaitID *)); 198int evDo __P((evContext, const void *)); 199int evUnwait __P((evContext, evWaitID)); 200int evDefer __P((evContext, evWaitFunc, void *)); 201 202#ifdef __EVENTLIB_P_DEFINED 203# undef __P 204#endif 205 206#endif /*_EVENTLIB_H*/ 207 208/*! \file */ 209