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hw/acpi: move object_resolve_type_unambiguous to core QOM
object_resolve_type_unambiguous provides a useful functionality, that is currently emulated for example by usb_bus_find(). Move it to core code and add error reporting for increased generality. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240223124406.234509-2-pbonzini@redhat.com> [PMD: Fixed style] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
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3 changed files with 34 additions and 15 deletions
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qom/object.c
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qom/object.c
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@ -2229,6 +2229,22 @@ Object *object_resolve_path_at(Object *parent, const char *path)
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return object_resolve_abs_path(parent, parts, TYPE_OBJECT);
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}
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Object *object_resolve_type_unambiguous(const char *typename, Error **errp)
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{
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bool ambig;
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Object *o = object_resolve_path_type("", typename, &ambig);
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if (ambig) {
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error_setg(errp, "More than one object of type %s", typename);
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return NULL;
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}
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if (!o) {
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error_setg(errp, "No object found of type %s", typename);
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return NULL;
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}
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return o;
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}
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typedef struct StringProperty
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{
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char *(*get)(Object *, Error **);
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