qom: Make "info qom-tree" show children sorted

"info qom-tree" prints children in unstable order.  This is a pain
when diffing output for different versions to find change.  Print it
sorted.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200527084754.7531-3-armbru@redhat.com>
Tested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Markus Armbruster 2020-05-27 10:47:54 +02:00
parent e8512dfa4d
commit e8c9e65816

View file

@ -81,22 +81,25 @@ typedef struct QOMCompositionState {
static void print_qom_composition(Monitor *mon, Object *obj, int indent);
static int print_qom_composition_child(Object *obj, void *opaque)
static int qom_composition_compare(const void *a, const void *b, void *ignore)
{
QOMCompositionState *s = opaque;
return g_strcmp0(a ? object_get_canonical_path_component(a) : NULL,
b ? object_get_canonical_path_component(b) : NULL);
}
print_qom_composition(s->mon, obj, s->indent);
static int insert_qom_composition_child(Object *obj, void *opaque)
{
GQueue *children = opaque;
g_queue_insert_sorted(children, obj, qom_composition_compare, NULL);
return 0;
}
static void print_qom_composition(Monitor *mon, Object *obj, int indent)
{
QOMCompositionState s = {
.mon = mon,
.indent = indent + 2,
};
char *name;
GQueue children;
Object *child;
if (obj == object_get_root()) {
name = g_strdup("");
@ -106,7 +109,12 @@ static void print_qom_composition(Monitor *mon, Object *obj, int indent)
monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
object_get_typename(obj));
g_free(name);
object_child_foreach(obj, print_qom_composition_child, &s);
g_queue_init(&children);
object_child_foreach(obj, insert_qom_composition_child, &children);
while ((child = g_queue_pop_head(&children))) {
print_qom_composition(mon, child, indent + 2);
}
}
void hmp_info_qom_tree(Monitor *mon, const QDict *dict)