LXR qemu/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 "qobject.h"
  17#include "qemu-queue.h"
  18#include "qemu-common.h"
  19#include "qemu-queue.h"
  20
  21typedef struct QListEntry {
  22    QObject *value;
  23    QTAILQ_ENTRY(QListEntry) next;
  24} QListEntry;
  25
  26typedef struct QList {
  27    QObject_HEAD;
  28    QTAILQ_HEAD(,QListEntry) head;
  29} QList;
  30
  31#define qlist_append(qlist, obj) \
  32        qlist_append_obj(qlist, QOBJECT(obj))
  33
  34#define QLIST_FOREACH_ENTRY(qlist, var)             \
  35        for ((var) = ((qlist)->head.tqh_first);     \
  36            (var);                                  \
  37            (var) = ((var)->next.tqe_next))
  38
  39static inline QObject *qlist_entry_obj(const QListEntry *entry)
  40{
  41    return entry->value;
  42}
  43
  44QList *qlist_new(void);
  45QList *qlist_copy(QList *src);
  46void qlist_append_obj(QList *qlist, QObject *obj);
  47void qlist_iter(const QList *qlist,
  48                void (*iter)(QObject *obj, void *opaque), void *opaque);
  49QObject *qlist_pop(QList *qlist);
  50QObject *qlist_peek(QList *qlist);
  51int qlist_empty(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