LXR qemu/include/qapi/qmp/qlist.h

   1/*
   2 * QList Module
   3 *
   4 * Copyright (C) 2009 Red Hat Inc.
   5 *
   6 * Authors:
   7 *  Luiz Capitulino <lcapitulino@redhat.com>
   8 *
   9 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10 * See the COPYING.LIB file in the top-level directory.
  11 */
  12
  13#ifndef QLIST_H
  14#define QLIST_H
  15
  16#include "qapi/qmp/qobject.h"
  17#include "qemu/queue.h"
  18#include "qemu/queue.h"
  19
  20typedef struct QListEntry {
  21    QObject *value;
  22    QTAILQ_ENTRY(QListEntry) next;
  23} QListEntry;
  24
  25typedef struct QList {
  26    QObject_HEAD;
  27    QTAILQ_HEAD(,QListEntry) head;
  28} QList;
  29
  30#define qlist_append(qlist, obj) \
  31        qlist_append_obj(qlist, QOBJECT(obj))
  32
  33#define QLIST_FOREACH_ENTRY(qlist, var)             \
  34        for ((var) = ((qlist)->head.tqh_first);     \
  35            (var);                                  \
  36            (var) = ((var)->next.tqe_next))
  37
  38static inline QObject *qlist_entry_obj(const QListEntry *entry)
  39{
  40    return entry->value;
  41}
  42
  43QList *qlist_new(void);
  44QList *qlist_copy(QList *src);
  45void qlist_append_obj(QList *qlist, QObject *obj);
  46void qlist_iter(const QList *qlist,
  47                void (*iter)(QObject *obj, void *opaque), void *opaque);
  48QObject *qlist_pop(QList *qlist);
  49QObject *qlist_peek(QList *qlist);
  50int qlist_empty(const QList *qlist);
  51size_t qlist_size(const QList *qlist);
  52QList *qobject_to_qlist(const QObject *obj);
  53
  54static inline const QListEntry *qlist_first(const QList *qlist)
  55{
  56    return QTAILQ_FIRST(&qlist->head);
  57}
  58
  59static inline const QListEntry *qlist_next(const QListEntry *entry)
  60{
  61    return QTAILQ_NEXT(entry, next);
  62}
  63
  64#endif /* QLIST_H */
  65