summaryrefslogtreecommitdiffstats
path: root/libc/netbsd/isc/ev_timers.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/netbsd/isc/ev_timers.c')
-rw-r--r--libc/netbsd/isc/ev_timers.c504
1 files changed, 0 insertions, 504 deletions
diff --git a/libc/netbsd/isc/ev_timers.c b/libc/netbsd/isc/ev_timers.c
deleted file mode 100644
index 9674687..0000000
--- a/libc/netbsd/isc/ev_timers.c
+++ /dev/null
@@ -1,504 +0,0 @@
-/* $NetBSD: ev_timers.c,v 1.2 2004/05/20 19:52:31 christos Exp $ */
-
-/*
- * 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]
- */
-
-#include <sys/cdefs.h>
-#if !defined(LINT) && !defined(CODECENTER) && !defined(lint)
-#ifdef notdef
-static const char rcsid[] = "Id: ev_timers.c,v 1.2.2.1.4.5 2004/03/17 02:39:13 marka Exp";
-#else
-__RCSID("$NetBSD: ev_timers.c,v 1.2 2004/05/20 19:52:31 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include <errno.h>
-
-#include <isc/assertions.h>
-#include <isc/eventlib.h>
-#include "eventlib_p.h"
-
-/* Constants. */
-
-#define MILLION 1000000
-#define BILLION 1000000000
-
-/* Forward. */
-
-#ifndef _LIBC
-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() {
- 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(0L, 0L));
- 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(0L, 0L));
- 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);
-}
-
-struct timeval
-evTimeVal(struct timespec ts) {
- struct timeval tv;
-
- tv.tv_sec = ts.tv_sec;
- tv.tv_usec = ts.tv_nsec / 1000;
- return (tv);
-}
-
-#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;
-
- printf("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) {
- printf("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) {
- printf("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) {
- printf("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) {
- printf("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 idx) {
- evTimer *timer;
-
- timer = what;
- timer->index = idx;
-}
-
-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(0L, 0L);
- FREE(this);
- } else {
- /* evDrop() will reschedule the timer. */
- this->timer->inter = evSubTime(this->max_idle, idle);
- }
-}
-#endif
generated by cgit v1.1 at 2025-01-26 01:19:34 +0000