Patchwork [1/5] QList: Introduce QLIST_FOREACH_ENTRY()

login
register
mail settings
Submitter Luiz Capitulino
Date Jan. 20, 2010, 4:39 p.m.
Message ID <1264005551-12989-2-git-send-email-lcapitulino@redhat.com>
Download mbox | patch
Permalink /patch/43310/
State New
Headers show

Comments

Luiz Capitulino - Jan. 20, 2010, 4:39 p.m.
Iterate over QList entries, it's needed to call qlist_entry_obj()
to retrieve the stored QObject.

I'm not sure if it's ok to have this, because it's not as easy as
qlist_iter() and the QListEntry data type is now exposed to the
users, which means we have one more struct to be maintained when
we have libqmp.

Adding anyway, as it's more compact and people are asking for it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 qlist.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

Patch

diff --git a/qlist.h b/qlist.h
index afdc446..a3261e1 100644
--- a/qlist.h
+++ b/qlist.h
@@ -29,6 +29,16 @@  typedef struct QList {
 #define qlist_append(qlist, obj) \
         qlist_append_obj(qlist, QOBJECT(obj))
 
+#define QLIST_FOREACH_ENTRY(qlist, var)             \
+        for ((var) = ((qlist)->head.tqh_first);     \
+            (var);                                  \
+            (var) = ((var)->next.tqe_next))
+
+static inline QObject *qlist_entry_obj(const QListEntry *entry)
+{
+    return entry->value;
+}
+
 QList *qlist_new(void);
 QList *qlist_copy(QList *src);
 void qlist_append_obj(QList *qlist, QObject *obj);