eventlib.h revision 186089
1/* 2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (c) 1995-1999 by Internet Software Consortium 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18/* eventlib.h - exported interfaces for eventlib 19 * vix 09sep95 [initial] 20 * 21 * $Id: eventlib.h,v 1.3.18.2 2005/07/28 07:38:07 marka Exp $ 22 */ 23 24#ifndef _EVENTLIB_H 25#define _EVENTLIB_H 26 27#include <sys/types.h> 28#include <sys/uio.h> 29#include <sys/time.h> 30#include <stdio.h> 31 32#ifndef __P 33# define __EVENTLIB_P_DEFINED 34# ifdef __STDC__ 35# define __P(x) x 36# else 37# define __P(x) () 38# endif 39#endif 40 41/* In the absence of branded types... */ 42typedef struct { void *opaque; } evConnID; 43typedef struct { void *opaque; } evFileID; 44typedef struct { void *opaque; } evStreamID; 45typedef struct { void *opaque; } evTimerID; 46typedef struct { void *opaque; } evWaitID; 47typedef struct { void *opaque; } evContext; 48typedef struct { void *opaque; } evEvent; 49 50#define evInitID(id) ((id)->opaque = NULL) 51#define evTestID(id) ((id).opaque != NULL) 52 53typedef void (*evConnFunc)__P((evContext, void *, int, const void *, int, 54 const void *, int)); 55typedef void (*evFileFunc)__P((evContext, void *, int, int)); 56typedef void (*evStreamFunc)__P((evContext, void *, int, int)); 57typedef void (*evTimerFunc)__P((evContext, void *, 58 struct timespec, struct timespec)); 59typedef void (*evWaitFunc)__P((evContext, void *, const void *)); 60 61typedef struct { unsigned char mask[256/8]; } evByteMask; 62#define EV_BYTEMASK_BYTE(b) ((b) / 8) 63#define EV_BYTEMASK_MASK(b) (1 << ((b) % 8)) 64#define EV_BYTEMASK_SET(bm, b) \ 65 ((bm).mask[EV_BYTEMASK_BYTE(b)] |= EV_BYTEMASK_MASK(b)) 66#define EV_BYTEMASK_CLR(bm, b) \ 67 ((bm).mask[EV_BYTEMASK_BYTE(b)] &= ~EV_BYTEMASK_MASK(b)) 68#define EV_BYTEMASK_TST(bm, b) \ 69 ((bm).mask[EV_BYTEMASK_BYTE(b)] & EV_BYTEMASK_MASK(b)) 70 71#define EV_POLL 1 72#define EV_WAIT 2 73#define EV_NULL 4 74 75#define EV_READ 1 76#define EV_WRITE 2 77#define EV_EXCEPT 4 78 79#define EV_WASNONBLOCKING 8 /* Internal library use. */ 80 81/* eventlib.c */ 82#define evCreate __evCreate 83#define evSetDebug __evSetDebug 84#define evDestroy __evDestroy 85#define evGetNext __evGetNext 86#define evDispatch __evDispatch 87#define evDrop __evDrop 88#define evMainLoop __evMainLoop 89#define evHighestFD __evHighestFD 90#define evGetOption __evGetOption 91#define evSetOption __evSetOption 92 93int evCreate __P((evContext *)); 94void evSetDebug __P((evContext, int, FILE *)); 95int evDestroy __P((evContext)); 96int evGetNext __P((evContext, evEvent *, int)); 97int evDispatch __P((evContext, evEvent)); 98void evDrop __P((evContext, evEvent)); 99int evMainLoop __P((evContext)); 100int evHighestFD __P((evContext)); 101int evGetOption __P((evContext *, const char *, int *)); 102int evSetOption __P((evContext *, const char *, int)); 103 104/* ev_connects.c */ 105#define evListen __evListen 106#define evConnect __evConnect 107#define evCancelConn __evCancelConn 108#define evHold __evHold 109#define evUnhold __evUnhold 110#define evTryAccept __evTryAccept 111 112int evListen __P((evContext, int, int, evConnFunc, void *, evConnID *)); 113int evConnect __P((evContext, int, const void *, int, 114 evConnFunc, void *, evConnID *)); 115int evCancelConn __P((evContext, evConnID)); 116int evHold __P((evContext, evConnID)); 117int evUnhold __P((evContext, evConnID)); 118int evTryAccept __P((evContext, evConnID, int *)); 119 120/* ev_files.c */ 121#define evSelectFD __evSelectFD 122#define evDeselectFD __evDeselectFD 123 124int evSelectFD __P((evContext, int, int, evFileFunc, void *, evFileID *)); 125int evDeselectFD __P((evContext, evFileID)); 126 127/* ev_streams.c */ 128#define evConsIovec __evConsIovec 129#define evWrite __evWrite 130#define evRead __evRead 131#define evTimeRW __evTimeRW 132#define evUntimeRW __evUntimeRW 133#define evCancelRW __evCancelRW 134 135struct iovec evConsIovec __P((void *, size_t)); 136int evWrite __P((evContext, int, const struct iovec *, int, 137 evStreamFunc func, void *, evStreamID *)); 138int evRead __P((evContext, int, const struct iovec *, int, 139 evStreamFunc func, void *, evStreamID *)); 140int evTimeRW __P((evContext, evStreamID, evTimerID timer)); 141int evUntimeRW __P((evContext, evStreamID)); 142int evCancelRW __P((evContext, evStreamID)); 143 144/* ev_timers.c */ 145#define evConsTime __evConsTime 146#define evAddTime __evAddTime 147#define evSubTime __evSubTime 148#define evCmpTime __evCmpTime 149#define evTimeSpec __evTimeSpec 150#define evTimeVal __evTimeVal 151 152#define evNowTime __evNowTime 153#define evUTCTime __evUTCTime 154#define evLastEventTime __evLastEventTime 155#define evSetTimer __evSetTimer 156#define evClearTimer __evClearTimer 157#define evConfigTimer __evConfigTimer 158#define evResetTimer __evResetTimer 159#define evSetIdleTimer __evSetIdleTimer 160#define evClearIdleTimer __evClearIdleTimer 161#define evResetIdleTimer __evResetIdleTimer 162#define evTouchIdleTimer __evTouchIdleTimer 163 164struct timespec evConsTime __P((time_t sec, long nsec)); 165struct timespec evAddTime __P((struct timespec, struct timespec)); 166struct timespec evSubTime __P((struct timespec, struct timespec)); 167struct timespec evNowTime __P((void)); 168struct timespec evUTCTime __P((void)); 169struct timespec evLastEventTime __P((evContext)); 170struct timespec evTimeSpec __P((struct timeval)); 171struct timeval evTimeVal __P((struct timespec)); 172int evCmpTime __P((struct timespec, struct timespec)); 173int evSetTimer __P((evContext, evTimerFunc, void *, struct timespec, 174 struct timespec, evTimerID *)); 175int evClearTimer __P((evContext, evTimerID)); 176int evConfigTimer __P((evContext, evTimerID, const char *param, 177 int value)); 178int evResetTimer __P((evContext, evTimerID, evTimerFunc, void *, 179 struct timespec, struct timespec)); 180int evSetIdleTimer __P((evContext, evTimerFunc, void *, struct timespec, 181 evTimerID *)); 182int evClearIdleTimer __P((evContext, evTimerID)); 183int evResetIdleTimer __P((evContext, evTimerID, evTimerFunc, void *, 184 struct timespec)); 185int evTouchIdleTimer __P((evContext, evTimerID)); 186 187/* ev_waits.c */ 188#define evWaitFor __evWaitFor 189#define evDo __evDo 190#define evUnwait __evUnwait 191#define evDefer __evDefer 192 193int evWaitFor __P((evContext, const void *, evWaitFunc, void *, evWaitID *)); 194int evDo __P((evContext, const void *)); 195int evUnwait __P((evContext, evWaitID)); 196int evDefer __P((evContext, evWaitFunc, void *)); 197 198#ifdef __EVENTLIB_P_DEFINED 199# undef __P 200#endif 201 202#endif /*_EVENTLIB_H*/ 203 204/*! \file */ 205