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Re: [PATCH 2/2] qom: Make "info qom-tree" show children sorted
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [PATCH 2/2] qom: Make "info qom-tree" show children sorted |
Date: |
Wed, 27 May 2020 12:31:56 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 |
On 5/27/20 10:47 AM, Markus Armbruster wrote:
> "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 <address@hidden>
> ---
> qom/qom-hmp-cmds.c | 24 ++++++++++++++++--------
> 1 file changed, 16 insertions(+), 8 deletions(-)
>
> diff --git a/qom/qom-hmp-cmds.c b/qom/qom-hmp-cmds.c
> index cd08233a4c..94bdee9a90 100644
> --- a/qom/qom-hmp-cmds.c
> +++ b/qom/qom-hmp-cmds.c
> @@ -69,22 +69,25 @@ 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("");
> @@ -94,7 +97,12 @@ 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)
>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>