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-rw-r--r--lib/isc/ondestroy.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/lib/isc/ondestroy.c b/lib/isc/ondestroy.c
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+++ b/lib/isc/ondestroy.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/* $Id: ondestroy.c,v 1.16 2007/06/19 23:47:17 tbox Exp $ */
+
+/*! \file */
+
+#include <config.h>
+
+#include <stddef.h>
+
+#include <isc/event.h>
+#include <isc/magic.h>
+#include <isc/ondestroy.h>
+#include <isc/task.h>
+#include <isc/util.h>
+
+#define ONDESTROY_MAGIC ISC_MAGIC('D', 'e', 'S', 't')
+#define VALID_ONDESTROY(s) ISC_MAGIC_VALID(s, ONDESTROY_MAGIC)
+
+void
+isc_ondestroy_init(isc_ondestroy_t *ondest) {
+ ondest->magic = ONDESTROY_MAGIC;
+ ISC_LIST_INIT(ondest->events);
+}
+
+isc_result_t
+isc_ondestroy_register(isc_ondestroy_t *ondest, isc_task_t *task,
+ isc_event_t **eventp)
+{
+ isc_event_t *theevent;
+ isc_task_t *thetask = NULL;
+
+ REQUIRE(VALID_ONDESTROY(ondest));
+ REQUIRE(task != NULL);
+ REQUIRE(eventp != NULL);
+
+ theevent = *eventp;
+
+ REQUIRE(theevent != NULL);
+
+ isc_task_attach(task, &thetask);
+
+ theevent->ev_sender = thetask;
+
+ ISC_LIST_APPEND(ondest->events, theevent, ev_link);
+
+ return (ISC_R_SUCCESS);
+}
+
+void
+isc_ondestroy_notify(isc_ondestroy_t *ondest, void *sender) {
+ isc_event_t *eventp;
+ isc_task_t *task;
+
+ REQUIRE(VALID_ONDESTROY(ondest));
+
+ eventp = ISC_LIST_HEAD(ondest->events);
+ while (eventp != NULL) {
+ ISC_LIST_UNLINK(ondest->events, eventp, ev_link);
+
+ task = eventp->ev_sender;
+ eventp->ev_sender = sender;
+
+ isc_task_sendanddetach(&task, &eventp);
+
+ eventp = ISC_LIST_HEAD(ondest->events);
+ }
+}
+
+