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qom: Add automatic arrayification to object_property_add()

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If "[*]" is given as the last part of a QOM property name, treat that
as an array property. The added property is given the first available
name, replacing the * with a decimal number counting from 0.

First add with name "foo[*]" will be "foo[0]". Second "foo[1]" and so
on.

Callers may inspect the ObjectProperty * return value to see what
number the added property was given.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Peter Crosthwaite 2014-08-19 23:55:52 -07:00 committed by Andreas Färber
parent d2659e27e1
commit 339659041f
1 changed files with 21 additions and 0 deletions
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21
qom/object.c
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@ -728,6 +728,27 @@ object_property_add(Object *obj, const char *name, const char *type,
void *opaque, Error **errp)
{
ObjectProperty *prop;
size_t name_len = strlen(name);
if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) {
int i;
ObjectProperty *ret;
char *name_no_array = g_strdup(name);
name_no_array[name_len - 3] = '\0';
for (i = 0; ; ++i) {
char *full_name = g_strdup_printf("%s[%d]", name_no_array, i);
ret = object_property_add(obj, full_name, type, get, set,
release, opaque, NULL);
g_free(full_name);
if (ret) {
break;
}
}
g_free(name_no_array);
return ret;
}
QTAILQ_FOREACH(prop, &obj->properties, node) {
if (strcmp(prop->name, name) == 0) {