The only difference from qstring_get_str() is that it allows the qstring
to be NULL. If so, NULL is returned.
CC: Eric Blake <ebl...@redhat.com>
CC: Markus Armbruster <arm...@redhat.com>
Reviewed-by: Fam Zheng <f...@redhat.com>
Signed-off-by: Peter Xu <pet...@redhat.com>
---
include/qapi/qmp/qstring.h | 1 +
qobject/qstring.c | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/include/qapi/qmp/qstring.h b/include/qapi/qmp/qstring.h
index 10076b7c8c..34278bd639 100644
--- a/include/qapi/qmp/qstring.h
+++ b/include/qapi/qmp/qstring.h
@@ -27,6 +27,7 @@ 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 *qstring_get_try_str(const QString *qstring);
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 5da7b5f37c..9df04e3c7b 100644
--- a/qobject/qstring.c
+++ b/qobject/qstring.c
@@ -129,6 +129,16 @@ const char *qstring_get_str(const QString *qstring)
}
/**
+ * qstring_get_try_str(): Return a pointer to the stored string
+ *
+ * NOTE: will return NULL if qstring is not provided.
+ */
+const char *qstring_get_try_str(const QString *qstring)
+{
+ return qstring ? qstring_get_str(qstring) : NULL;
+}
+
+/**
* qstring_destroy_obj(): Free all memory allocated by a QString
* object
*/
--
2.13.6
