[05/22] qapi: qapi_visit.py, support arrays and complex qapi definitions

diff --git a/scripts/qapi.py b/scripts/qapi.py
index 122b4cb..a347203 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -110,12 +110,16 @@  def parse_args(typeinfo):
         argentry = typeinfo[member]
         optional = False
         structured = False
+        annotated = False
         if member.startswith('*'):
             argname = member[1:]
             optional = True
         if isinstance(argentry, OrderedDict):
-            structured = True
-        yield (argname, argentry, optional, structured)
+            if argentry.has_key('<annotated>'):
+                annotated = True
+            else:
+                structured = True
+        yield (argname, argentry, optional, structured, annotated)
 
 def de_camel_case(name):
     new_name = ''
diff --git a/scripts/qapi_commands.py b/scripts/qapi_commands.py
index 3c4678d..a2e0c23 100644
--- a/scripts/qapi_commands.py
+++ b/scripts/qapi_commands.py
@@ -32,7 +32,7 @@  void %(visitor)s(Visitor *m, %(name)s * obj, const char *name, Error **errp);
 
 def generate_command_decl(name, args, ret_type):
     arglist=""
-    for argname, argtype, optional, structured in parse_args(args):
+    for argname, argtype, optional, structured, annotated in parse_args(args):
         argtype = c_type(argtype)
         if argtype == "char *":
             argtype = "const char *"
@@ -50,7 +50,7 @@  def gen_sync_call(name, args, ret_type, indent=0):
     retval=""
     if ret_type:
         retval = "retval = "
-    for argname, argtype, optional, structured in parse_args(args):
+    for argname, argtype, optional, structured, annotated in parse_args(args):
         if optional:
             arglist += "has_%s, " % c_var(argname)
         arglist += "%s, " % (c_var(argname))
@@ -106,7 +106,7 @@  Visitor *v;
 def gen_visitor_input_vars_decl(args):
     ret = ""
     push_indent()
-    for argname, argtype, optional, structured in parse_args(args):
+    for argname, argtype, optional, structured, annotated in parse_args(args):
         if optional:
             ret += mcgen('''
 bool has_%(argname)s = false;
@@ -145,7 +145,7 @@  v = qmp_input_get_visitor(mi);
 ''',
                      obj=obj)
 
-    for argname, argtype, optional, structured in parse_args(args):
+    for argname, argtype, optional, structured, annotated in parse_args(args):
         if optional:
             ret += mcgen('''
 visit_start_optional(v, &has_%(c_name)s, "%(name)s", errp);
diff --git a/scripts/qapi_types.py b/scripts/qapi_types.py
index 49ef569..6518768 100644
--- a/scripts/qapi_types.py
+++ b/scripts/qapi_types.py
@@ -45,7 +45,7 @@  struct %(name)s
 ''',
           name=structname)
 
-    for argname, argentry, optional, structured in parse_args(members):
+    for argname, argentry, optional, structured, annotated in parse_args(members):
         if optional:
             ret += mcgen('''
     bool has_%(c_name)s;
diff --git a/scripts/qapi_visit.py b/scripts/qapi_visit.py
index 974e458..b3f34a2 100644
--- a/scripts/qapi_visit.py
+++ b/scripts/qapi_visit.py
@@ -16,6 +16,52 @@  import sys
 import os
 import getopt
 import errno
+import types
+
+def generate_visit_carray_body(name, info):
+    if info['array_size'][0].isdigit():
+        array_size = info['array_size']
+    elif info['array_size'][0] == '(' and info['array_size'][-1] == ')':
+        array_size = info['array_size']
+    else:
+        array_size = "(*obj)->%s" % info['array_size']
+
+    if info.has_key('array_capacity'):
+        array_capacity = info['array_capacity']
+    else:
+        array_capacity = array_size
+
+    if camel_case(de_camel_case(info['type'][0])) == info['type'][0]:
+        ret = mcgen('''
+visit_start_carray(m, (void **)obj, "%(name)s", %(array_capacity)s, sizeof(%(type)s), errp);
+int %(name)s_i;
+for (%(name)s_i = 0; %(name)s_i < %(array_size)s; %(name)s_i++) {
+    %(type)s %(name)s_ptr = &(*obj)->%(name)s[%(name)s_i];
+    visit_next_carray(m, errp);
+    visit_type_%(type_short)s(m, &%(name)s_ptr, NULL, errp);
+}
+visit_end_carray(m, errp);
+''',
+                    name=name, type=c_type(info['type'][0]),
+                    type_short=info['type'][0],
+                    array_size=array_size,
+                    array_capacity=array_capacity)
+    else:
+        ret = mcgen('''
+visit_start_carray(m, (void **)obj, "%(name)s", %(array_capacity)s, sizeof(%(type)s), errp);
+int %(name)s_i;
+for (%(name)s_i = 0; %(name)s_i < %(array_size)s; %(name)s_i++) {
+    %(type)s *%(name)s_ptr = (%(type)s *)&(*obj)->%(name)s[%(name)s_i];
+    visit_next_carray(m, errp);
+    visit_type_%(type_short)s(m, %(name)s_ptr, NULL, errp);
+}
+visit_end_carray(m, errp);
+''',
+                    name=name, type=c_type(info['type'][0]),
+                    type_short=info['type'][0],
+                    array_size=array_size,
+                    array_capacity=array_capacity)
+    return ret
 
 def generate_visit_struct_body(field_prefix, name, members):
     ret = mcgen('''
@@ -45,10 +91,10 @@  if (!err) {
 
     push_indent()
     push_indent()
-    for argname, argentry, optional, structured in parse_args(members):
+    for argname, argentry, optional, structured, annotated in parse_args(members):
         if optional:
             ret += mcgen('''
-visit_start_optional(m, obj ? &(*obj)->%(c_prefix)shas_%(c_name)s : NULL, "%(name)s", &err);
+visit_start_optional(m, obj ? &(*obj)->%(c_prefix)shas_%(c_name)s : NULL, "%(name)s", errp);
 if (obj && (*obj)->%(prefix)shas_%(c_name)s) {
 ''',
                          c_prefix=c_var(field_prefix), prefix=field_prefix,
@@ -58,12 +104,16 @@  if (obj && (*obj)->%(prefix)shas_%(c_name)s) {
         if structured:
             ret += generate_visit_struct_body(field_prefix + argname, argname, argentry)
         else:
-            ret += mcgen('''
-visit_type_%(type)s(m, obj ? &(*obj)->%(c_prefix)s%(c_name)s : NULL, "%(name)s", &err);
+            if annotated:
+                if isinstance(argentry['type'], types.ListType):
+                    ret += generate_visit_carray_body(argname, argentry)
+            else:
+                ret += mcgen('''
+visit_type_%(type)s(m, obj ? &(*obj)->%(c_prefix)s%(c_name)s : NULL, "%(name)s", errp);
 ''',
-                         c_prefix=c_var(field_prefix), prefix=field_prefix,
-                         type=type_name(argentry), c_name=c_var(argname),
-                         name=argname)
+                             c_prefix=c_var(field_prefix), prefix=field_prefix,
+                             type=type_name(argentry), c_name=c_var(argname),
+                             name=argname)
 
         if optional:
             pop_indent()