Commit e8c9e658 authored by Markus Armbruster's avatar Markus Armbruster
Browse files

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: default avatarMarkus Armbruster <armbru@redhat.com>
Message-Id: <20200527084754.7531-3-armbru@redhat.com>
Tested-by: default avatarCédric Le Goater <clg@kaod.org>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
parent e8512dfa
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+16 −8
Original line number Diff line number Diff line
@@ -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)