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hw/acpi: move object_resolve_type_unambiguous to core QOM

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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>
This commit is contained in:
Paolo Bonzini
2024-02-23 13:43:57 +01:00
committed by Philippe Mathieu-Daudé
parent 31ae8bb15d
commit ee3b34cd48
3 changed files with 34 additions and 15 deletions
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16
qom/object.c
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@ -2229,6 +2229,22 @@ Object *object_resolve_path_at(Object *parent, const char *path)
return object_resolve_abs_path(parent, parts, TYPE_OBJECT);
}
Object *object_resolve_type_unambiguous(const char *typename, Error **errp)
{
bool ambig;
Object *o = object_resolve_path_type("", typename, &ambig);
if (ambig) {
error_setg(errp, "More than one object of type %s", typename);
return NULL;
}
if (!o) {
error_setg(errp, "No object found of type %s", typename);
return NULL;
}
return o;
}
typedef struct StringProperty
{
char *(*get)(Object *, Error **);