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/*
* Notifier lists
*
* Copyright IBM, Corp. 2010
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/notify.h"
void notifier_list_init(NotifierList *list)
{
QLIST_INIT(&list->notifiers);
}
void notifier_list_add(NotifierList *list, Notifier *notifier)
{
QLIST_INSERT_HEAD(&list->notifiers, notifier, node);
}
void notifier_remove(Notifier *notifier)
{
QLIST_REMOVE(notifier, node);
}
void notifier_list_notify(NotifierList *list, void *data)
{
Notifier *notifier, *next;
QLIST_FOREACH_SAFE(notifier, &list->notifiers, node, next) {
notifier->notify(notifier, data);
}
}
bool notifier_list_empty(NotifierList *list)
{
return QLIST_EMPTY(&list->notifiers);
}
void notifier_with_return_list_init(NotifierWithReturnList *list)
{
QLIST_INIT(&list->notifiers);
}
void notifier_with_return_list_add(NotifierWithReturnList *list,
NotifierWithReturn *notifier)
{
QLIST_INSERT_HEAD(&list->notifiers, notifier, node);
}
void notifier_with_return_remove(NotifierWithReturn *notifier)
{
QLIST_REMOVE(notifier, node);
}
int notifier_with_return_list_notify(NotifierWithReturnList *list, void *data,
Error **errp)
{
NotifierWithReturn *notifier, *next;
int ret = 0;
QLIST_FOREACH_SAFE(notifier, &list->notifiers, node, next) {
ret = notifier->notify(notifier, data, errp);
if (ret != 0) {
break;
}
}
return ret;
}
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