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9e8dd45164
This allows to pass additional information to the notifier callback which is useful if sender and receiver do not share any other distinct data structure. Will be used first for the clock reset notifier. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
43 lines
881 B
C
43 lines
881 B
C
/*
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* Notifier lists
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*
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* Copyright IBM, Corp. 2010
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_NOTIFY_H
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#define QEMU_NOTIFY_H
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#include "qemu-queue.h"
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typedef struct Notifier Notifier;
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struct Notifier
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{
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void (*notify)(Notifier *notifier, void *data);
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QTAILQ_ENTRY(Notifier) node;
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};
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typedef struct NotifierList
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{
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QTAILQ_HEAD(, Notifier) notifiers;
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} NotifierList;
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#define NOTIFIER_LIST_INITIALIZER(head) \
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{ QTAILQ_HEAD_INITIALIZER((head).notifiers) }
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void notifier_list_init(NotifierList *list);
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void notifier_list_add(NotifierList *list, Notifier *notifier);
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void notifier_list_remove(NotifierList *list, Notifier *notifier);
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void notifier_list_notify(NotifierList *list, void *data);
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#endif
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