diff options
Diffstat (limited to 'qobject')
-rw-r--r-- | qobject/qdict.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/qobject/qdict.c b/qobject/qdict.c index 23df84f9cd..229b8c840b 100644 --- a/qobject/qdict.c +++ b/qobject/qdict.c @@ -1072,3 +1072,37 @@ void qdict_join(QDict *dest, QDict *src, bool overwrite) entry = next; } } + +/** + * qdict_rename_keys(): Rename keys in qdict according to the replacements + * specified in the array renames. The array must be terminated by an entry + * with from = NULL. + * + * The renames are performed individually in the order of the array, so entries + * may be renamed multiple times and may or may not conflict depending on the + * order of the renames array. + * + * Returns true for success, false in error cases. + */ +bool qdict_rename_keys(QDict *qdict, const QDictRenames *renames, Error **errp) +{ + QObject *qobj; + + while (renames->from) { + if (qdict_haskey(qdict, renames->from)) { + if (qdict_haskey(qdict, renames->to)) { + error_setg(errp, "'%s' and its alias '%s' can't be used at the " + "same time", renames->to, renames->from); + return false; + } + + qobj = qdict_get(qdict, renames->from); + qobject_incref(qobj); + qdict_put_obj(qdict, renames->to, qobj); + qdict_del(qdict, renames->from); + } + + renames++; + } + return true; +} |