[Qemu-devel] [PATCH v4 3/5] qobject: introduce qobject_get_str()

[Amos Kong]

Signed-off-by: Amos Kong <address@hidden>
---
 include/qapi/qmp/qstring.h |  1 +
 qobject/qstring.c          | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/include/qapi/qmp/qstring.h b/include/qapi/qmp/qstring.h
index 1bc3666..56b17cb 100644
--- a/include/qapi/qmp/qstring.h
+++ b/include/qapi/qmp/qstring.h
@@ -28,6 +28,7 @@ QString *qstring_from_str(const char *str);
 QString *qstring_from_substr(const char *str, int start, int end);
 size_t qstring_get_length(const QString *qstring);
 const char *qstring_get_str(const QString *qstring);
+const char *qobject_get_str(const QObject *obj);
 void qstring_append_int(QString *qstring, int64_t value);
 void qstring_append(QString *qstring, const char *str);
 void qstring_append_chr(QString *qstring, int c);
diff --git a/qobject/qstring.c b/qobject/qstring.c
index 607b7a1..c470a86 100644
--- a/qobject/qstring.c
+++ b/qobject/qstring.c
@@ -135,6 +135,25 @@ const char *qstring_get_str(const QString *qstring)
 }
 
 /**
+ * qobject_to_str(): Convert a QObject to QString and return
+ * a pointer to the stored string
+ */
+const char *qobject_get_str(const QObject *data)
+{
+    QString *qstr;
+
+    if (!data) {
+        return NULL;
+    }
+    qstr = qobject_to_qstring(data);
+    if (qstr) {
+        return qstring_get_str(qstr);
+    } else {
+        return NULL;
+    }
+}
+
+/**
  * qstring_destroy_obj(): Free all memory allocated by a QString
  * object
  */
-- 
1.8.4.2