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 "qapi/qmp/qnum.h" 18 #include "qemu/queue.h" 19 20 typedef struct QListEntry { 21 QObject *value; 22 QTAILQ_ENTRY(QListEntry) next; 23 } QListEntry; 24 25 typedef struct QList { 26 QObject base; 27 QTAILQ_HEAD(,QListEntry) head; 28 } QList; 29 30 #define qlist_append(qlist, obj) \ 31 qlist_append_obj(qlist, QOBJECT(obj)) 32 33 /* Helpers for int, bool, and string */ 34 #define qlist_append_int(qlist, value) \ 35 qlist_append(qlist, qnum_from_int(value)) 36 #define qlist_append_bool(qlist, value) \ 37 qlist_append(qlist, qbool_from_bool(value)) 38 #define qlist_append_str(qlist, value) \ 39 qlist_append(qlist, qstring_from_str(value)) 40 41 #define QLIST_FOREACH_ENTRY(qlist, var) \ 42 for ((var) = ((qlist)->head.tqh_first); \ 43 (var); \ 44 (var) = ((var)->next.tqe_next)) 45 46 static inline QObject *qlist_entry_obj(const QListEntry *entry) 47 { 48 return entry->value; 49 } 50 51 QList *qlist_new(void); 52 QList *qlist_copy(QList *src); 53 void qlist_append_obj(QList *qlist, QObject *obj); 54 void qlist_iter(const QList *qlist, 55 void (*iter)(QObject *obj, void *opaque), void *opaque); 56 QObject *qlist_pop(QList *qlist); 57 QObject *qlist_peek(QList *qlist); 58 int qlist_empty(const QList *qlist); 59 size_t qlist_size(const QList *qlist); 60 QList *qobject_to_qlist(const QObject *obj); 61 void qlist_destroy_obj(QObject *obj); 62 63 static inline const QListEntry *qlist_first(const QList *qlist) 64 { 65 return QTAILQ_FIRST(&qlist->head); 66 } 67 68 static inline const QListEntry *qlist_next(const QListEntry *entry) 69 { 70 return QTAILQ_NEXT(entry, next); 71 } 72 73 #endif /* QLIST_H */ 74