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authorPeter Xu <peterx@redhat.com>2018-03-09 16:59:45 +0800
committerEric Blake <eblake@redhat.com>2018-03-19 14:58:36 -0500
commit775932020dd6bd7e9c1acc0d7779677d8b4c094c (patch)
tree5cc98e759230a124dbb643e5d6ba235934450657 /include/qapi
parent378112b0020c4bc6c54e73e58046399f0e41b939 (diff)
qobject: introduce qstring_get_try_str()
The only difference from qstring_get_str() is that it allows the qstring to be NULL. If so, NULL is returned. CC: Eric Blake <eblake@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180309090006.10018-3-peterx@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'include/qapi')
-rw-r--r--include/qapi/qmp/qstring.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/qapi/qmp/qstring.h b/include/qapi/qmp/qstring.h
index b72843fc1b..38c680b718 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);