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https://github.com/isc-projects/bind9.git
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83 lines
2 KiB
C
83 lines
2 KiB
C
/*
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* Copyright (C) 2000 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#include <config.h>
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#include <isc/assertions.h>
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#include <isc/ondestroy.h>
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#include <isc/result.h>
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#include <isc/task.h>
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#define ONDESTROY_MAGIC 0x44655374 /* DeSt */
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#define VALID_ONDESTROY(s) (s != NULL && (s->magic == ONDESTROY_MAGIC))
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void
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isc_ondestroy_init(isc_ondestroy_t *ondest)
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{
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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,
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isc_task_t *task, 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->sender = thetask;
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ISC_LIST_APPEND(ondest->events, theevent, 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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{
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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, link);
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task = eventp->sender;
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eventp->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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