vl: introduce object_parse_property_opt

We will reuse the parsing loop of machine_set_property soon for "-accel",
but we do not want the "_" -> "-" conversion since "-accel" can just
standardize on dashes.  We will also add a bunch of legacy option handling
to keep the QOM machine object clean.  Extract the loop into a separate
function, and keep the legacy handling in machine_set_property.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 20 insertions, 15 deletions

diff --git a/vl.c b/vl.c
index 28adf38285..efd3b11431 100644
--- a/vl.c
+++ b/vl.c
@@ -2490,27 +2490,17 @@ static MachineClass *select_machine(void)
     return machine_class;
 }
 
-static int machine_set_property(void *opaque,
-                                const char *name, const char *value,
-                                Error **errp)
+static int object_parse_property_opt(Object *obj,
+                                     const char *name, const char *value,
+                                     const char *skip, Error **errp)
 {
-    Object *obj = OBJECT(opaque);
     Error *local_err = NULL;
-    char *p, *qom_name;
 
-    if (strcmp(name, "type") == 0) {
+    if (g_str_equal(name, skip)) {
         return 0;
     }
 
-    qom_name = g_strdup(name);
-    for (p = qom_name; *p; p++) {
-        if (*p == '_') {
-            *p = '-';
-        }
-    }
-
-    object_property_parse(obj, value, qom_name, &local_err);
-    g_free(qom_name);
+    object_property_parse(obj, value, name, &local_err);
 
     if (local_err) {
         error_propagate(errp, local_err);
@@ -2520,6 +2510,21 @@ static int machine_set_property(void *opaque,
     return 0;
 }
 
+static int machine_set_property(void *opaque,
+                                const char *name, const char *value,
+                                Error **errp)
+{
+    g_autofree char *qom_name = g_strdup(name);
+    char *p;
+
+    for (p = qom_name; *p; p++) {
+        if (*p == '_') {
+            *p = '-';
+        }
+    }
+
+    return object_parse_property_opt(opaque, name, value, "type", errp);
+}
 
 /*
  * Initial object creation happens before all other