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      1 /*
      2  * QList data type header.
      3  *
      4  * Copyright (C) 2009 Red Hat Inc.
      5  *
      6  * Authors:
      7  *  Luiz Capitulino <lcapitulino (at) 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 */
     53