[Qemu-devel] [PATCH v3 01/12] QObject API: add qdict_to_qstring() function

[Miguel Di Ciurcio Filho]

This is a helper function that converts a QDict to a QString, using the format:

key1=value1 SPACE key2=value2 SPACE key3=value3

Handy for debugging and other things.

Signed-off-by: Miguel Di Ciurcio Filho <miguel.fi...@gmail.com>
---
 qdict.c |   41 +++++++++++++++++++++++++++++++++++++++++
 qdict.h |    3 +++
 2 files changed, 44 insertions(+), 0 deletions(-)

diff --git a/qdict.c b/qdict.c
index aae57bf..fddade0 100644
--- a/qdict.c
+++ b/qdict.c
@@ -324,6 +324,47 @@ void qdict_iter(const QDict *qdict,
     }
 }
 
+void qdict_to_qstring_iter(const char *key, QObject *obj, void *opaque)
+{
+    QString *str = opaque;
+    
+    qstring_append(str, key);
+    qstring_append(str, "=");
+    switch (qobject_type(obj)) {
+    case QTYPE_QSTRING:
+        qstring_append(str, qstring_get_str(qobject_to_qstring(obj)));
+        break;
+    case QTYPE_QINT:
+        qstring_append_int(str, qint_get_int(qobject_to_qint(obj)));
+        break;
+    case QTYPE_QBOOL:
+        qstring_append(str, qbool_get_int(qobject_to_qbool(obj)) ? "true" :
+        "false" );
+        break;
+    default:
+        qstring_append(str, "NULL");
+    }
+
+    qstring_append(str, " ");
+}
+
+/**
+ * qdict_to_qstring(): Format a string with the keys and values of a QDict.
+ *
+ * Nested lists and dicts are not supported, yet.
+ *
+ * Return a pointer to a QString, with the following format:
+ *    key1=value1 SPACE key2=value2 SPACE key3=value3
+ */
+QString *qdict_to_qstring(const QDict *qdict)
+{
+    QString *str;
+    str = qstring_new();
+    qdict_iter(qdict, qdict_to_qstring_iter, str);
+
+    return str;
+}
+
 /**
  * qentry_destroy(): Free all the memory allocated by a QDictEntry
  */
diff --git a/qdict.h b/qdict.h
index 579dcdd..6731555 100644
--- a/qdict.h
+++ b/qdict.h
@@ -3,6 +3,7 @@
 
 #include "qobject.h"
 #include "qlist.h"
+#include "qstring.h"
 #include "qemu-queue.h"
 #include <stdint.h>
 
@@ -43,6 +44,8 @@ int qdict_get_bool(const QDict *qdict, const char *key);
 QList *qdict_get_qlist(const QDict *qdict, const char *key);
 QDict *qdict_get_qdict(const QDict *qdict, const char *key);
 const char *qdict_get_str(const QDict *qdict, const char *key);
+void qdict_to_qstring_iter(const char *key, QObject *obj, void *opaque);
+QString *qdict_to_qstring(const QDict *qdict);
 int64_t qdict_get_try_int(const QDict *qdict, const char *key,
                           int64_t err_value);
 const char *qdict_get_try_str(const QDict *qdict, const char *key);
-- 
1.7.0.4