[Qemu-devel] [PATCH v2 7/9] qom: Add verbose option to info qom-tree HMP command

["Andreas Färber" <afaerber@suse.de>]

It lists object properties, as equivalent to what info qtree displays.

Cc: Hani Benhabiles <hani@linux.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 monitor.c      |  6 +++---
 qdev-monitor.c | 49 ++++++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 45 insertions(+), 10 deletions(-)

diff --git a/monitor.c b/monitor.c
index 48f7f5a..9e16b4a 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2890,9 +2890,9 @@ static mon_cmd_t info_cmds[] = {
     },
     {
         .name       = "qom-tree",
-        .args_type  = "path:s?",
-        .params     = "[path]",
-        .help       = "show QOM composition tree",
+        .args_type  = "verbose:-v,path:s?",
+        .params     = "[-v] [path]",
+        .help       = "show QOM composition tree (-v: show properties)",
         .mhandler.cmd = hmp_info_qom_tree,
     },
     {
diff --git a/qdev-monitor.c b/qdev-monitor.c
index 1d87f57..845abfa 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -22,6 +22,7 @@
 #include "monitor/monitor.h"
 #include "monitor/qdev.h"
 #include "qmp-commands.h"
+#include "qapi/string-output-visitor.h"
 #include "sysemu/arch_init.h"
 #include "qemu/config-file.h"
 
@@ -681,40 +682,74 @@ void hmp_info_qdm(Monitor *mon, const QDict *qdict)
 typedef struct QOMCompositionState {
     Monitor *mon;
     int indent;
+    bool verbose;
 } QOMCompositionState;
 
-static void print_qom_composition(Monitor *mon, Object *obj, int indent);
+static void print_qom_composition(Monitor *mon, Object *obj, int indent,
+                                  bool verbose);
 
 static int print_qom_composition_child(Object *obj, void *opaque)
 {
     QOMCompositionState *s = opaque;
 
-    print_qom_composition(s->mon, obj, s->indent);
+    print_qom_composition(s->mon, obj, s->indent, s->verbose);
 
     return 0;
 }
 
-static void print_qom_composition(Monitor *mon, Object *obj, int indent)
+static void print_qom_composition(Monitor *mon, Object *obj, int indent,
+                                  bool verbose)
 {
     QOMCompositionState s = {
         .mon = mon,
         .indent = indent + 2,
+        .verbose = verbose,
     };
-    char *name;
+    ObjectProperty *prop;
+    StringOutputVisitor *mo;
+    Error *local_err = NULL;
+    char *name, *str;
 
     if (obj == object_get_root()) {
         name = g_strdup("");
     } else {
         name = object_get_canonical_path_component(obj);
     }
-    monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
-                   object_get_typename(obj));
+    if (verbose) {
+        monitor_printf(mon, "%*s/%s\n", indent, "", name);
+        QTAILQ_FOREACH(prop, &obj->properties, node) {
+            mo = string_output_visitor_new(true);
+            if (!prop->get) {
+                monitor_printf(mon, "%*s%s (write-only)\n", indent + 2, "",
+                               prop->name);
+            } else {
+                prop->get(obj, string_output_get_visitor(mo), prop->opaque,
+                          prop->name, &local_err);
+                if (local_err) {
+                    monitor_printf(mon, "%*s%s: Error: %s\n", indent + 2, "",
+                                   prop->name, error_get_pretty(local_err));
+                    error_free(local_err);
+                    local_err = NULL;
+                } else {
+                    str = string_output_get_string(mo);
+                    monitor_printf(mon, "%*s%s: %s\n", indent + 2, "",
+                                   prop->name, str);
+                    g_free(str);
+                }
+            }
+            string_output_visitor_cleanup(mo);
+        }
+    } else {
+        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);
 }
 
 void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
 {
+    bool verbose = qdict_get_try_bool(dict, "verbose", 0);
     const char *path = qdict_get_try_str(dict, "path");
     Object *obj;
     bool ambiguous = false;
@@ -732,7 +767,7 @@ void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
     } else {
         obj = qdev_get_machine();
     }
-    print_qom_composition(mon, obj, 0);
+    print_qom_composition(mon, obj, 0, verbose);
 }
 
 int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
-- 
2.1.4