Index: head/lib/libc/isc/ev_streams.c =================================================================== --- head/lib/libc/isc/ev_streams.c (revision 326699) +++ head/lib/libc/isc/ev_streams.c (revision 326700) @@ -1,318 +1,320 @@ -/* +/*- + * SPDX-License-Identifier: ISC + * * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1996-1999 by Internet Software Consortium * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* ev_streams.c - implement asynch stream file IO for the eventlib * vix 04mar96 [initial] */ #if !defined(LINT) && !defined(CODECENTER) static const char rcsid[] = "$Id: ev_streams.c,v 1.5 2005/04/27 04:56:36 sra Exp $"; #endif #include __FBSDID("$FreeBSD$"); #include "port_before.h" #ifndef _LIBC #include "fd_setsize.h" #endif #include #include #include #include #ifndef _LIBC #include #endif #include "eventlib_p.h" #include "port_after.h" #ifndef _LIBC static int copyvec(evStream *str, const struct iovec *iov, int iocnt); static void consume(evStream *str, size_t bytes); static void done(evContext opaqueCtx, evStream *str); static void writable(evContext opaqueCtx, void *uap, int fd, int evmask); static void readable(evContext opaqueCtx, void *uap, int fd, int evmask); #endif struct iovec evConsIovec(void *buf, size_t cnt) { struct iovec ret; memset(&ret, 0xf5, sizeof ret); ret.iov_base = buf; ret.iov_len = cnt; return (ret); } #ifndef _LIBC int evWrite(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt, evStreamFunc func, void *uap, evStreamID *id) { evContext_p *ctx = opaqueCtx.opaque; evStream *new; int save; OKNEW(new); new->func = func; new->uap = uap; new->fd = fd; new->flags = 0; if (evSelectFD(opaqueCtx, fd, EV_WRITE, writable, new, &new->file) < 0) goto free; if (copyvec(new, iov, iocnt) < 0) goto free; new->prevDone = NULL; new->nextDone = NULL; if (ctx->streams != NULL) ctx->streams->prev = new; new->prev = NULL; new->next = ctx->streams; ctx->streams = new; if (id != NULL) id->opaque = new; return (0); free: save = errno; FREE(new); errno = save; return (-1); } int evRead(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt, evStreamFunc func, void *uap, evStreamID *id) { evContext_p *ctx = opaqueCtx.opaque; evStream *new; int save; OKNEW(new); new->func = func; new->uap = uap; new->fd = fd; new->flags = 0; if (evSelectFD(opaqueCtx, fd, EV_READ, readable, new, &new->file) < 0) goto free; if (copyvec(new, iov, iocnt) < 0) goto free; new->prevDone = NULL; new->nextDone = NULL; if (ctx->streams != NULL) ctx->streams->prev = new; new->prev = NULL; new->next = ctx->streams; ctx->streams = new; if (id) id->opaque = new; return (0); free: save = errno; FREE(new); errno = save; return (-1); } int evTimeRW(evContext opaqueCtx, evStreamID id, evTimerID timer) /*ARGSUSED*/ { evStream *str = id.opaque; UNUSED(opaqueCtx); str->timer = timer; str->flags |= EV_STR_TIMEROK; return (0); } int evUntimeRW(evContext opaqueCtx, evStreamID id) /*ARGSUSED*/ { evStream *str = id.opaque; UNUSED(opaqueCtx); str->flags &= ~EV_STR_TIMEROK; return (0); } int evCancelRW(evContext opaqueCtx, evStreamID id) { evContext_p *ctx = opaqueCtx.opaque; evStream *old = id.opaque; /* * The streams list is doubly threaded. First, there's ctx->streams * that's used by evDestroy() to find and cancel all streams. Second, * there's ctx->strDone (head) and ctx->strLast (tail) which thread * through the potentially smaller number of "IO completed" streams, * used in evGetNext() to avoid scanning the entire list. */ /* Unlink from ctx->streams. */ if (old->prev != NULL) old->prev->next = old->next; else ctx->streams = old->next; if (old->next != NULL) old->next->prev = old->prev; /* * If 'old' is on the ctx->strDone list, remove it. Update * ctx->strLast if necessary. */ if (old->prevDone == NULL && old->nextDone == NULL) { /* * Either 'old' is the only item on the done list, or it's * not on the done list. If the former, then we unlink it * from the list. If the latter, we leave the list alone. */ if (ctx->strDone == old) { ctx->strDone = NULL; ctx->strLast = NULL; } } else { if (old->prevDone != NULL) old->prevDone->nextDone = old->nextDone; else ctx->strDone = old->nextDone; if (old->nextDone != NULL) old->nextDone->prevDone = old->prevDone; else ctx->strLast = old->prevDone; } /* Deallocate the stream. */ if (old->file.opaque) evDeselectFD(opaqueCtx, old->file); memput(old->iovOrig, sizeof (struct iovec) * old->iovOrigCount); FREE(old); return (0); } /* Copy a scatter/gather vector and initialize a stream handler's IO. */ static int copyvec(evStream *str, const struct iovec *iov, int iocnt) { int i; str->iovOrig = (struct iovec *)memget(sizeof(struct iovec) * iocnt); if (str->iovOrig == NULL) { errno = ENOMEM; return (-1); } str->ioTotal = 0; for (i = 0; i < iocnt; i++) { str->iovOrig[i] = iov[i]; str->ioTotal += iov[i].iov_len; } str->iovOrigCount = iocnt; str->iovCur = str->iovOrig; str->iovCurCount = str->iovOrigCount; str->ioDone = 0; return (0); } /* Pull off or truncate lead iovec(s). */ static void consume(evStream *str, size_t bytes) { while (bytes > 0U) { if (bytes < (size_t)str->iovCur->iov_len) { str->iovCur->iov_len -= bytes; str->iovCur->iov_base = (void *) ((u_char *)str->iovCur->iov_base + bytes); str->ioDone += bytes; bytes = 0; } else { bytes -= str->iovCur->iov_len; str->ioDone += str->iovCur->iov_len; str->iovCur++; str->iovCurCount--; } } } /* Add a stream to Done list and deselect the FD. */ static void done(evContext opaqueCtx, evStream *str) { evContext_p *ctx = opaqueCtx.opaque; if (ctx->strLast != NULL) { str->prevDone = ctx->strLast; ctx->strLast->nextDone = str; ctx->strLast = str; } else { INSIST(ctx->strDone == NULL); ctx->strDone = ctx->strLast = str; } evDeselectFD(opaqueCtx, str->file); str->file.opaque = NULL; /* evDrop() will call evCancelRW() on us. */ } /* Dribble out some bytes on the stream. (Called by evDispatch().) */ static void writable(evContext opaqueCtx, void *uap, int fd, int evmask) { evStream *str = uap; int bytes; UNUSED(evmask); bytes = writev(fd, str->iovCur, str->iovCurCount); if (bytes > 0) { if ((str->flags & EV_STR_TIMEROK) != 0) evTouchIdleTimer(opaqueCtx, str->timer); consume(str, bytes); } else { if (bytes < 0 && errno != EINTR) { str->ioDone = -1; str->ioErrno = errno; } } if (str->ioDone == -1 || str->ioDone == str->ioTotal) done(opaqueCtx, str); } /* Scoop up some bytes from the stream. (Called by evDispatch().) */ static void readable(evContext opaqueCtx, void *uap, int fd, int evmask) { evStream *str = uap; int bytes; UNUSED(evmask); bytes = readv(fd, str->iovCur, str->iovCurCount); if (bytes > 0) { if ((str->flags & EV_STR_TIMEROK) != 0) evTouchIdleTimer(opaqueCtx, str->timer); consume(str, bytes); } else { if (bytes == 0) str->ioDone = 0; else { if (errno != EINTR) { str->ioDone = -1; str->ioErrno = errno; } } } if (str->ioDone <= 0 || str->ioDone == str->ioTotal) done(opaqueCtx, str); } #endif /*! \file */ Index: head/lib/libc/isc/ev_timers.c =================================================================== --- head/lib/libc/isc/ev_timers.c (revision 326699) +++ head/lib/libc/isc/ev_timers.c (revision 326700) @@ -1,515 +1,517 @@ -/* +/*- + * SPDX-License-Identifier: ISC + * * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1995-1999 by Internet Software Consortium * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* ev_timers.c - implement timers for the eventlib * vix 09sep95 [initial] */ #if !defined(LINT) && !defined(CODECENTER) static const char rcsid[] = "$Id: ev_timers.c,v 1.6 2005/04/27 04:56:36 sra Exp $"; #endif #include __FBSDID("$FreeBSD$"); /* Import. */ #include "port_before.h" #ifndef _LIBC #include "fd_setsize.h" #endif #include #ifndef _LIBC #include #endif #include #include "eventlib_p.h" #include "port_after.h" /* Constants. */ #define MILLION 1000000 #define BILLION 1000000000 /* Forward. */ #ifdef _LIBC static int __evOptMonoTime; #else static int due_sooner(void *, void *); static void set_index(void *, int); static void free_timer(void *, void *); static void print_timer(void *, void *); static void idle_timeout(evContext, void *, struct timespec, struct timespec); /* Private type. */ typedef struct { evTimerFunc func; void * uap; struct timespec lastTouched; struct timespec max_idle; evTimer * timer; } idle_timer; #endif /* Public. */ struct timespec evConsTime(time_t sec, long nsec) { struct timespec x; x.tv_sec = sec; x.tv_nsec = nsec; return (x); } struct timespec evAddTime(struct timespec addend1, struct timespec addend2) { struct timespec x; x.tv_sec = addend1.tv_sec + addend2.tv_sec; x.tv_nsec = addend1.tv_nsec + addend2.tv_nsec; if (x.tv_nsec >= BILLION) { x.tv_sec++; x.tv_nsec -= BILLION; } return (x); } struct timespec evSubTime(struct timespec minuend, struct timespec subtrahend) { struct timespec x; x.tv_sec = minuend.tv_sec - subtrahend.tv_sec; if (minuend.tv_nsec >= subtrahend.tv_nsec) x.tv_nsec = minuend.tv_nsec - subtrahend.tv_nsec; else { x.tv_nsec = BILLION - subtrahend.tv_nsec + minuend.tv_nsec; x.tv_sec--; } return (x); } int evCmpTime(struct timespec a, struct timespec b) { long x = a.tv_sec - b.tv_sec; if (x == 0L) x = a.tv_nsec - b.tv_nsec; return (x < 0L ? (-1) : x > 0L ? (1) : (0)); } struct timespec evNowTime(void) { struct timeval now; #ifdef CLOCK_REALTIME struct timespec tsnow; int m = CLOCK_REALTIME; #ifdef CLOCK_MONOTONIC if (__evOptMonoTime) m = CLOCK_MONOTONIC; #endif if (clock_gettime(m, &tsnow) == 0) return (tsnow); #endif if (gettimeofday(&now, NULL) < 0) return (evConsTime(0, 0)); return (evTimeSpec(now)); } struct timespec evUTCTime(void) { struct timeval now; #ifdef CLOCK_REALTIME struct timespec tsnow; if (clock_gettime(CLOCK_REALTIME, &tsnow) == 0) return (tsnow); #endif if (gettimeofday(&now, NULL) < 0) return (evConsTime(0, 0)); return (evTimeSpec(now)); } #ifndef _LIBC struct timespec evLastEventTime(evContext opaqueCtx) { evContext_p *ctx = opaqueCtx.opaque; return (ctx->lastEventTime); } #endif struct timespec evTimeSpec(struct timeval tv) { struct timespec ts; ts.tv_sec = tv.tv_sec; ts.tv_nsec = tv.tv_usec * 1000; return (ts); } #if !defined(USE_KQUEUE) || !defined(_LIBC) struct timeval evTimeVal(struct timespec ts) { struct timeval tv; tv.tv_sec = ts.tv_sec; tv.tv_usec = ts.tv_nsec / 1000; return (tv); } #endif #ifndef _LIBC int evSetTimer(evContext opaqueCtx, evTimerFunc func, void *uap, struct timespec due, struct timespec inter, evTimerID *opaqueID ) { evContext_p *ctx = opaqueCtx.opaque; evTimer *id; evPrintf(ctx, 1, "evSetTimer(ctx %p, func %p, uap %p, due %ld.%09ld, inter %ld.%09ld)\n", ctx, func, uap, (long)due.tv_sec, due.tv_nsec, (long)inter.tv_sec, inter.tv_nsec); #ifdef __hpux /* * tv_sec and tv_nsec are unsigned. */ if (due.tv_nsec >= BILLION) EV_ERR(EINVAL); if (inter.tv_nsec >= BILLION) EV_ERR(EINVAL); #else if (due.tv_sec < 0 || due.tv_nsec < 0 || due.tv_nsec >= BILLION) EV_ERR(EINVAL); if (inter.tv_sec < 0 || inter.tv_nsec < 0 || inter.tv_nsec >= BILLION) EV_ERR(EINVAL); #endif /* due={0,0} is a magic cookie meaning "now." */ if (due.tv_sec == (time_t)0 && due.tv_nsec == 0L) due = evNowTime(); /* Allocate and fill. */ OKNEW(id); id->func = func; id->uap = uap; id->due = due; id->inter = inter; if (heap_insert(ctx->timers, id) < 0) return (-1); /* Remember the ID if the caller provided us a place for it. */ if (opaqueID) opaqueID->opaque = id; if (ctx->debug > 7) { evPrintf(ctx, 7, "timers after evSetTimer:\n"); (void) heap_for_each(ctx->timers, print_timer, (void *)ctx); } return (0); } int evClearTimer(evContext opaqueCtx, evTimerID id) { evContext_p *ctx = opaqueCtx.opaque; evTimer *del = id.opaque; if (ctx->cur != NULL && ctx->cur->type == Timer && ctx->cur->u.timer.this == del) { evPrintf(ctx, 8, "deferring delete of timer (executing)\n"); /* * Setting the interval to zero ensures that evDrop() will * clean up the timer. */ del->inter = evConsTime(0, 0); return (0); } if (heap_element(ctx->timers, del->index) != del) EV_ERR(ENOENT); if (heap_delete(ctx->timers, del->index) < 0) return (-1); FREE(del); if (ctx->debug > 7) { evPrintf(ctx, 7, "timers after evClearTimer:\n"); (void) heap_for_each(ctx->timers, print_timer, (void *)ctx); } return (0); } int evConfigTimer(evContext opaqueCtx, evTimerID id, const char *param, int value ) { evContext_p *ctx = opaqueCtx.opaque; evTimer *timer = id.opaque; int result=0; UNUSED(value); if (heap_element(ctx->timers, timer->index) != timer) EV_ERR(ENOENT); if (strcmp(param, "rate") == 0) timer->mode |= EV_TMR_RATE; else if (strcmp(param, "interval") == 0) timer->mode &= ~EV_TMR_RATE; else EV_ERR(EINVAL); return (result); } int evResetTimer(evContext opaqueCtx, evTimerID id, evTimerFunc func, void *uap, struct timespec due, struct timespec inter ) { evContext_p *ctx = opaqueCtx.opaque; evTimer *timer = id.opaque; struct timespec old_due; int result=0; if (heap_element(ctx->timers, timer->index) != timer) EV_ERR(ENOENT); #ifdef __hpux /* * tv_sec and tv_nsec are unsigned. */ if (due.tv_nsec >= BILLION) EV_ERR(EINVAL); if (inter.tv_nsec >= BILLION) EV_ERR(EINVAL); #else if (due.tv_sec < 0 || due.tv_nsec < 0 || due.tv_nsec >= BILLION) EV_ERR(EINVAL); if (inter.tv_sec < 0 || inter.tv_nsec < 0 || inter.tv_nsec >= BILLION) EV_ERR(EINVAL); #endif old_due = timer->due; timer->func = func; timer->uap = uap; timer->due = due; timer->inter = inter; switch (evCmpTime(due, old_due)) { case -1: result = heap_increased(ctx->timers, timer->index); break; case 0: result = 0; break; case 1: result = heap_decreased(ctx->timers, timer->index); break; } if (ctx->debug > 7) { evPrintf(ctx, 7, "timers after evResetTimer:\n"); (void) heap_for_each(ctx->timers, print_timer, (void *)ctx); } return (result); } int evSetIdleTimer(evContext opaqueCtx, evTimerFunc func, void *uap, struct timespec max_idle, evTimerID *opaqueID ) { evContext_p *ctx = opaqueCtx.opaque; idle_timer *tt; /* Allocate and fill. */ OKNEW(tt); tt->func = func; tt->uap = uap; tt->lastTouched = ctx->lastEventTime; tt->max_idle = max_idle; if (evSetTimer(opaqueCtx, idle_timeout, tt, evAddTime(ctx->lastEventTime, max_idle), max_idle, opaqueID) < 0) { FREE(tt); return (-1); } tt->timer = opaqueID->opaque; return (0); } int evClearIdleTimer(evContext opaqueCtx, evTimerID id) { evTimer *del = id.opaque; idle_timer *tt = del->uap; FREE(tt); return (evClearTimer(opaqueCtx, id)); } int evResetIdleTimer(evContext opaqueCtx, evTimerID opaqueID, evTimerFunc func, void *uap, struct timespec max_idle ) { evContext_p *ctx = opaqueCtx.opaque; evTimer *timer = opaqueID.opaque; idle_timer *tt = timer->uap; tt->func = func; tt->uap = uap; tt->lastTouched = ctx->lastEventTime; tt->max_idle = max_idle; return (evResetTimer(opaqueCtx, opaqueID, idle_timeout, tt, evAddTime(ctx->lastEventTime, max_idle), max_idle)); } int evTouchIdleTimer(evContext opaqueCtx, evTimerID id) { evContext_p *ctx = opaqueCtx.opaque; evTimer *t = id.opaque; idle_timer *tt = t->uap; tt->lastTouched = ctx->lastEventTime; return (0); } /* Public to the rest of eventlib. */ heap_context evCreateTimers(const evContext_p *ctx) { UNUSED(ctx); return (heap_new(due_sooner, set_index, 2048)); } void evDestroyTimers(const evContext_p *ctx) { (void) heap_for_each(ctx->timers, free_timer, NULL); (void) heap_free(ctx->timers); } /* Private. */ static int due_sooner(void *a, void *b) { evTimer *a_timer, *b_timer; a_timer = a; b_timer = b; return (evCmpTime(a_timer->due, b_timer->due) < 0); } static void set_index(void *what, int index) { evTimer *timer; timer = what; timer->index = index; } static void free_timer(void *what, void *uap) { evTimer *t = what; UNUSED(uap); FREE(t); } static void print_timer(void *what, void *uap) { evTimer *cur = what; evContext_p *ctx = uap; cur = what; evPrintf(ctx, 7, " func %p, uap %p, due %ld.%09ld, inter %ld.%09ld\n", cur->func, cur->uap, (long)cur->due.tv_sec, cur->due.tv_nsec, (long)cur->inter.tv_sec, cur->inter.tv_nsec); } static void idle_timeout(evContext opaqueCtx, void *uap, struct timespec due, struct timespec inter ) { evContext_p *ctx = opaqueCtx.opaque; idle_timer *this = uap; struct timespec idle; UNUSED(due); UNUSED(inter); idle = evSubTime(ctx->lastEventTime, this->lastTouched); if (evCmpTime(idle, this->max_idle) >= 0) { (this->func)(opaqueCtx, this->uap, this->timer->due, this->max_idle); /* * Setting the interval to zero will cause the timer to * be cleaned up in evDrop(). */ this->timer->inter = evConsTime(0, 0); FREE(this); } else { /* evDrop() will reschedule the timer. */ this->timer->inter = evSubTime(this->max_idle, idle); } } #endif /*! \file */ Index: head/lib/libc/isc/eventlib_p.h =================================================================== --- head/lib/libc/isc/eventlib_p.h (revision 326699) +++ head/lib/libc/isc/eventlib_p.h (revision 326700) @@ -1,289 +1,291 @@ -/* +/*- + * SPDX-License-Identifier: ISC + * * Copyright (c) 2005 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1995-1999 by Internet Software Consortium * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*! \file * \brief private interfaces for eventlib * \author vix 09sep95 [initial] * * $Id: eventlib_p.h,v 1.9 2006/03/09 23:57:56 marka Exp $ * $FreeBSD$ */ #ifndef _EVENTLIB_P_H #define _EVENTLIB_P_H #include #include #include #include #define EVENTLIB_DEBUG 1 #include #include #include #include #include #ifndef _LIBC #include #include #include #endif #define EV_MASK_ALL (EV_READ | EV_WRITE | EV_EXCEPT) #define EV_ERR(e) return (errno = (e), -1) #define OK(x) if ((x) < 0) EV_ERR(errno); else (void)NULL #define OKFREE(x, y) if ((x) < 0) { FREE((y)); EV_ERR(errno); } \ else (void)NULL #define NEW(p) if (((p) = memget(sizeof *(p))) != NULL) \ FILL(p); \ else \ (void)NULL; #define OKNEW(p) if (!((p) = memget(sizeof *(p)))) { \ errno = ENOMEM; \ return (-1); \ } else \ FILL(p) #define FREE(p) memput((p), sizeof *(p)) #if EVENTLIB_DEBUG #define FILL(p) memset((p), 0xF5, sizeof *(p)) #else #define FILL(p) #endif #ifdef USE_POLL #ifdef HAVE_STROPTS_H #include #endif #include #endif /* USE_POLL */ typedef struct evConn { evConnFunc func; void * uap; int fd; int flags; #define EV_CONN_LISTEN 0x0001 /*%< Connection is a listener. */ #define EV_CONN_SELECTED 0x0002 /*%< evSelectFD(conn->file). */ #define EV_CONN_BLOCK 0x0004 /*%< Listener fd was blocking. */ evFileID file; struct evConn * prev; struct evConn * next; } evConn; #ifndef _LIBC typedef struct evAccept { int fd; union { struct sockaddr sa; struct sockaddr_in in; #ifndef NO_SOCKADDR_UN struct sockaddr_un un; #endif } la; ISC_SOCKLEN_T lalen; union { struct sockaddr sa; struct sockaddr_in in; #ifndef NO_SOCKADDR_UN struct sockaddr_un un; #endif } ra; ISC_SOCKLEN_T ralen; int ioErrno; evConn * conn; LINK(struct evAccept) link; } evAccept; typedef struct evFile { evFileFunc func; void * uap; int fd; int eventmask; int preemptive; struct evFile * prev; struct evFile * next; struct evFile * fdprev; struct evFile * fdnext; } evFile; typedef struct evStream { evStreamFunc func; void * uap; evFileID file; evTimerID timer; int flags; #define EV_STR_TIMEROK 0x0001 /*%< IFF timer valid. */ int fd; struct iovec * iovOrig; int iovOrigCount; struct iovec * iovCur; int iovCurCount; int ioTotal; int ioDone; int ioErrno; struct evStream *prevDone, *nextDone; struct evStream *prev, *next; } evStream; typedef struct evTimer { evTimerFunc func; void * uap; struct timespec due, inter; int index; int mode; #define EV_TMR_RATE 1 } evTimer; typedef struct evWait { evWaitFunc func; void * uap; const void * tag; struct evWait * next; } evWait; typedef struct evWaitList { evWait * first; evWait * last; struct evWaitList * prev; struct evWaitList * next; } evWaitList; typedef struct evEvent_p { enum { Accept, File, Stream, Timer, Wait, Free, Null } type; union { struct { evAccept *this; } accept; struct { evFile *this; int eventmask; } file; struct { evStream *this; } stream; struct { evTimer *this; } timer; struct { evWait *this; } wait; struct { struct evEvent_p *next; } free; struct { const void *placeholder; } null; } u; } evEvent_p; #endif #ifdef USE_POLL typedef struct { void *ctx; /* pointer to the evContext_p */ uint32_t type; /* READ, WRITE, EXCEPT, nonblk */ uint32_t result; /* 1 => revents, 0 => events */ } __evEmulMask; #define emulMaskInit(ctx, field, ev, lastnext) \ ctx->field.ctx = ctx; \ ctx->field.type = ev; \ ctx->field.result = lastnext; extern short *__fd_eventfield(int fd, __evEmulMask *maskp); extern short __poll_event(__evEmulMask *maskp); extern void __fd_clr(int fd, __evEmulMask *maskp); extern void __fd_set(int fd, __evEmulMask *maskp); #undef FD_ZERO #define FD_ZERO(maskp) #undef FD_SET #define FD_SET(fd, maskp) \ __fd_set(fd, maskp) #undef FD_CLR #define FD_CLR(fd, maskp) \ __fd_clr(fd, maskp) #undef FD_ISSET #define FD_ISSET(fd, maskp) \ ((*__fd_eventfield(fd, maskp) & __poll_event(maskp)) != 0) #endif /* USE_POLL */ #ifndef _LIBC typedef struct { /* Global. */ const evEvent_p *cur; /* Debugging. */ int debug; FILE *output; /* Connections. */ evConn *conns; LIST(evAccept) accepts; /* Files. */ evFile *files, *fdNext; #ifndef USE_POLL fd_set rdLast, rdNext; fd_set wrLast, wrNext; fd_set exLast, exNext; fd_set nonblockBefore; int fdMax, fdCount, highestFD; evFile *fdTable[FD_SETSIZE]; #else struct pollfd *pollfds; /* Allocated as needed */ evFile **fdTable; /* Ditto */ int maxnfds; /* # elements in above */ int firstfd; /* First active fd */ int fdMax; /* Last active fd */ int fdCount; /* # fd:s with I/O */ int highestFD; /* max fd allowed by OS */ __evEmulMask rdLast, rdNext; __evEmulMask wrLast, wrNext; __evEmulMask exLast, exNext; __evEmulMask nonblockBefore; #endif /* USE_POLL */ #ifdef EVENTLIB_TIME_CHECKS struct timespec lastSelectTime; int lastFdCount; #endif /* Streams. */ evStream *streams; evStream *strDone, *strLast; /* Timers. */ struct timespec lastEventTime; heap_context timers; /* Waits. */ evWaitList *waitLists; evWaitList waitDone; } evContext_p; /* eventlib.c */ #define evPrintf __evPrintf void evPrintf(const evContext_p *ctx, int level, const char *fmt, ...) ISC_FORMAT_PRINTF(3, 4); #ifdef USE_POLL extern int evPollfdRealloc(evContext_p *ctx, int pollfd_chunk_size, int fd); #endif /* USE_POLL */ /* ev_timers.c */ #define evCreateTimers __evCreateTimers heap_context evCreateTimers(const evContext_p *); #define evDestroyTimers __evDestroyTimers void evDestroyTimers(const evContext_p *); /* ev_waits.c */ #define evFreeWait __evFreeWait evWait *evFreeWait(evContext_p *ctx, evWait *old); #endif /* Global options */ #ifndef _LIBC extern int __evOptMonoTime; #endif #endif /*_EVENTLIB_P_H*/