The purpose of this function is to prepare a QDict for consumption by the keyval visitor, which only accepts strings and QNull.
Signed-off-by: Max Reitz <[email protected]> --- include/block/qdict.h | 2 ++ qobject/qdict.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) diff --git a/include/block/qdict.h b/include/block/qdict.h index 825e096a72..05a24677b5 100644 --- a/include/block/qdict.h +++ b/include/block/qdict.h @@ -32,4 +32,6 @@ typedef struct QDictRenames { } QDictRenames; bool qdict_rename_keys(QDict *qdict, const QDictRenames *renames, Error **errp); +void qdict_stringify_for_keyval(QDict *qdict); + #endif diff --git a/qobject/qdict.c b/qobject/qdict.c index 0554c64553..83678c4951 100644 --- a/qobject/qdict.c +++ b/qobject/qdict.c @@ -1087,3 +1087,60 @@ bool qdict_rename_keys(QDict *qdict, const QDictRenames *renames, Error **errp) } return true; } + +/** + * Convert all values in a QDict so it can be consumed by the keyval + * input visitor. QNull values are left as-is, all other values are + * converted to strings. + * + * @qdict must be flattened, i.e. it may not contain any nested QDicts + * or QLists. + */ +void qdict_stringify_for_keyval(QDict *qdict) +{ + const QDictEntry *e; + + for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { + QString *new_value = NULL; + + switch (qobject_type(e->value)) { + case QTYPE_QNULL: + /* leave as-is */ + break; + + case QTYPE_QNUM: { + char *str = qnum_to_string(qobject_to(QNum, e->value)); + new_value = qstring_from_str(str); + g_free(str); + break; + } + + case QTYPE_QSTRING: + /* leave as-is */ + break; + + case QTYPE_QDICT: + case QTYPE_QLIST: + /* @qdict must be flattened */ + abort(); + + case QTYPE_QBOOL: + if (qbool_get_bool(qobject_to(QBool, e->value))) { + new_value = qstring_from_str("on"); + } else { + new_value = qstring_from_str("off"); + } + break; + + case QTYPE_NONE: + case QTYPE__MAX: + abort(); + } + + if (new_value) { + QDictEntry *mut_e = (QDictEntry *)e; + qobject_unref(mut_e->value); + mut_e->value = QOBJECT(new_value); + } + } +} -- 2.14.3
