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/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/* $Id: ondestroy.c,v 1.16 2007/06/19 23:47:17 tbox Exp $ */
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/*! \file */
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#include <config.h>
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#include <stddef.h>
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#include <isc/event.h>
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#include <isc/magic.h>
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#include <isc/ondestroy.h>
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#include <isc/task.h>
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#include <isc/util.h>
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#define ONDESTROY_MAGIC ISC_MAGIC('D', 'e', 'S', 't')
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#define VALID_ONDESTROY(s) ISC_MAGIC_VALID(s, ONDESTROY_MAGIC)
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void
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isc_ondestroy_init(isc_ondestroy_t *ondest) {
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ondest->magic = ONDESTROY_MAGIC;
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ISC_LIST_INIT(ondest->events);
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}
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isc_result_t
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isc_ondestroy_register(isc_ondestroy_t *ondest, isc_task_t *task,
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isc_event_t **eventp)
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{
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isc_event_t *theevent;
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isc_task_t *thetask = NULL;
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REQUIRE(VALID_ONDESTROY(ondest));
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REQUIRE(task != NULL);
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REQUIRE(eventp != NULL);
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REQUIRE((*eventp) != NULL);
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theevent = *eventp;
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isc_task_attach(task, &thetask;;
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theevent->ev_sender = thetask;
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ISC_LIST_APPEND(ondest->events, theevent, ev_link);
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return (ISC_R_SUCCESS);
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}
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void
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isc_ondestroy_notify(isc_ondestroy_t *ondest, void *sender) {
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isc_event_t *eventp;
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isc_task_t *task;
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REQUIRE(VALID_ONDESTROY(ondest));
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eventp = ISC_LIST_HEAD(ondest->events);
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while (eventp != NULL) {
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ISC_LIST_UNLINK(ondest->events, eventp, ev_link);
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task = eventp->ev_sender;
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eventp->ev_sender = sender;
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isc_task_sendanddetach(&task, &eventp);
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eventp = ISC_LIST_HEAD(ondest->events);
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}
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}
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