qemu-e2k/qlist.h
Anthony Liguori 033815fe14 Add operations to qlist to allow it to be used as a stack
This makes lists no longer invariant. It's a very useful bit of functionality
though.

To deal with the fact that lists are no longer invariant, introduce a deep
copy mechanism for lists.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17 08:49:38 -06:00

43 lines
1014 B
C

/*
* QList data type header.
*
* Copyright (C) 2009 Red Hat Inc.
*
* Authors:
* Luiz Capitulino <lcapitulino@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
#ifndef QLIST_H
#define QLIST_H
#include "qobject.h"
#include "qemu-queue.h"
#include "qemu-common.h"
typedef struct QListEntry {
QObject *value;
QTAILQ_ENTRY(QListEntry) next;
} QListEntry;
typedef struct QList {
QObject_HEAD;
QTAILQ_HEAD(,QListEntry) head;
} QList;
#define qlist_append(qlist, obj) \
qlist_append_obj(qlist, QOBJECT(obj))
QList *qlist_new(void);
QList *qlist_copy(QList *src);
void qlist_append_obj(QList *qlist, QObject *obj);
void qlist_iter(const QList *qlist,
void (*iter)(QObject *obj, void *opaque), void *opaque);
QObject *qlist_pop(QList *qlist);
QObject *qlist_peek(QList *qlist);
int qlist_empty(const QList *qlist);
QList *qobject_to_qlist(const QObject *obj);
#endif /* QLIST_H */