qlist.h

   1 /*
   2  * QList data type header.
   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 GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  */
  12 #ifndef QLIST_H
  13 #define QLIST_H
  14
  15 #include "qobject.h"
  16 #include "qemu-queue.h"
  17 #include "qemu-common.h"
  18
  19 typedef struct QListEntry {
  20     QObject *value;
  21     QTAILQ_ENTRY(QListEntry) next;
  22 } QListEntry;
  23
  24 typedef struct QList {
  25     QObject_HEAD;
  26     QTAILQ_HEAD(,QListEntry) head;
  27 } QList;
  28
  29 #define qlist_append(qlist, obj) \
  30         qlist_append_obj(qlist, QOBJECT(obj))
  31
  32 #define QLIST_FOREACH_ENTRY(qlist, var)             \
  33         for ((var) = ((qlist)->head.tqh_first);     \
  34             (var);                                  \
  35             (var) = ((var)->next.tqe_next))
  36
  37 static inline QObject *qlist_entry_obj(const QListEntry *entry)
  38 {
  39     return entry->value;
  40 }
  41
  42 QList *qlist_new(void);
  43 QList *qlist_copy(QList *src);
  44 void qlist_append_obj(QList *qlist, QObject *obj);
  45 void qlist_iter(const QList *qlist,
  46                 void (*iter)(QObject *obj, void *opaque), void *opaque);
  47 QObject *qlist_pop(QList *qlist);
  48 QObject *qlist_peek(QList *qlist);
  49 int qlist_empty(const QList *qlist);
  50 QList *qobject_to_qlist(const QObject *obj);
  51
  52 #endif /* QLIST_H */