LXR qemu/notify.h

   1/*
   2 * Notifier lists
   3 *
   4 * Copyright IBM, Corp. 2010
   5 *
   6 * Authors:
   7 *  Anthony Liguori   <aliguori@us.ibm.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2.  See
  10 * the COPYING file in the top-level directory.
  11 *
  12 */
  13
  14#ifndef QEMU_NOTIFY_H
  15#define QEMU_NOTIFY_H
  16
  17#include "qemu-queue.h"
  18
  19typedef struct Notifier Notifier;
  20
  21struct Notifier
  22{
  23    void (*notify)(Notifier *notifier, void *data);
  24    QLIST_ENTRY(Notifier) node;
  25};
  26
  27typedef struct NotifierList
  28{
  29    QLIST_HEAD(, Notifier) notifiers;
  30} NotifierList;
  31
  32#define NOTIFIER_LIST_INITIALIZER(head) \
  33    { QLIST_HEAD_INITIALIZER((head).notifiers) }
  34
  35void notifier_list_init(NotifierList *list);
  36
  37void notifier_list_add(NotifierList *list, Notifier *notifier);
  38
  39void notifier_remove(Notifier *notifier);
  40
  41void notifier_list_notify(NotifierList *list, void *data);
  42
  43#endif
  44