86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
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* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 2000, 2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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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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theevent = *eventp;
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REQUIRE(theevent != NULL);
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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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