Merge remote-tracking branch 'kwolf/for-anthony' into staging

# By Max Reitz (30) and others
# Via Kevin Wolf
* kwolf/for-anthony: (61 commits)
  qemu-iotests: Add test for inactive L2 overlap
  qemu-io: Let "open" pass options to block driver
  vmdk: Fix vmdk_parse_extents
  blockdev: blockdev_init() error conversion
  blockdev: Don't disable COR automatically with blockdev-add
  blockdev: Remove 'media' parameter from blockdev_init()
  qemu-iotests: Check autodel behaviour for device_del
  blockdev: Remove IF_* check for read-only blockdev_init
  blockdev: Move virtio-blk device creation to drive_init
  blockdev: Move bus/unit/index processing to drive_init
  blockdev: Move parsing of 'boot' option to drive_init
  blockdev: Moving parsing of geometry options to drive_init
  blockdev: Move parsing of 'if' option to drive_init
  blockdev: Move parsing of 'media' option to drive_init
  blockdev: Pass QDict to blockdev_init()
  blockdev: Separate ID generation from DriveInfo creation
  blockdev: 'blockdev-add' QMP command
  blockdev: Introduce DriveInfo.enable_auto_del
  qapi-types/visit.py: Inheritance for structs
  qapi-types/visit.py: Pass whole expr dict for structs
  ...

Message-id: 1381503951-27985-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>

1 files changed, 22 insertions, 4 deletions

diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 597cca4b66..c39e6284b8 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -17,7 +17,7 @@ import os
 import getopt
 import errno
 
-def generate_visit_struct_fields(name, field_prefix, fn_prefix, members):
+def generate_visit_struct_fields(name, field_prefix, fn_prefix, members, base = None):
     substructs = []
     ret = ''
     full_name = name if not fn_prefix else "%s_%s" % (name, fn_prefix)
@@ -42,6 +42,19 @@ static void visit_type_%(full_name)s_fields(Visitor *m, %(name)s ** obj, Error *
         name=name, full_name=full_name)
     push_indent()
 
+    if base:
+        ret += mcgen('''
+visit_start_implicit_struct(m, obj ? (void**) &(*obj)->%(c_name)s : NULL, sizeof(%(type)s), &err);
+if (!err) {
+    visit_type_%(type)s_fields(m, obj ? &(*obj)->%(c_prefix)s%(c_name)s : NULL, &err);
+    error_propagate(errp, err);
+    err = NULL;
+    visit_end_implicit_struct(m, &err);
+}
+''',
+                     c_prefix=c_var(field_prefix),
+                     type=type_name(base), c_name=c_var('base'))
+
     for argname, argentry, optional, structured in parse_args(members):
         if optional:
             ret += mcgen('''
@@ -120,8 +133,13 @@ if (!err) {
 ''')
     return ret
 
-def generate_visit_struct(name, members):
-    ret = generate_visit_struct_fields(name, "", "", members)
+def generate_visit_struct(expr):
+
+    name = expr['type']
+    members = expr['data']
+    base = expr.get('base')
+
+    ret = generate_visit_struct_fields(name, "", "", members, base)
 
     ret += mcgen('''
 
@@ -472,7 +490,7 @@ if do_builtins:
 
 for expr in exprs:
     if expr.has_key('type'):
-        ret = generate_visit_struct(expr['type'], expr['data'])
+        ret = generate_visit_struct(expr)
         ret += generate_visit_list(expr['type'], expr['data'])
         fdef.write(ret)