qlist: add qlist_first()/qlist_next()

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@gmail.com>

qlist.h

@@ -16,6 +16,7 @@
 #include "qobject.h"
 #include "qemu-queue.h"
 #include "qemu-common.h"
+#include "qemu-queue.h"
 
 typedef struct QListEntry {
     QObject *value;
@@ -50,4 +51,14 @@ QObject *qlist_peek(QList *qlist);
 int qlist_empty(const QList *qlist);
 QList *qobject_to_qlist(const QObject *obj);
 
+static inline const QListEntry *qlist_first(const QList *qlist)
+{
+    return QTAILQ_FIRST(&qlist->head);
+}
+
+static inline const QListEntry *qlist_next(const QListEntry *entry)
+{
+    return QTAILQ_NEXT(entry, next);
+}
+
 #endif /* QLIST_H */