From f720c153e1393571ade56ba36fcf96176099f18f Mon Sep 17 00:00:00 2001
From: Luiz Capitulino <lcapitulino@redhat.com>
Date: Wed, 9 Jul 2014 14:31:50 +0200
Subject: scripts: qapi-event.py: support vendor extension

Message-id: <1404916312-27953-2-git-send-email-lcapitulino@redhat.com>
Patchwork-id: 59727
O-Subject: [RHEV7.1 qemu-kvm-rhev PATCH 1/3] scripts: qapi-event.py: support vendor extension
Bugzilla: 1116772
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>

The event code generator barfs when it sees a dot in an event
argument, this makes it impossible to support vendor extensions
in event arguments as they always contain dots. Fix this by
replacing dots by hyphens in the generated code.

PS: Event names and QMP command arguments may suffer from the
same issue, but I'm not checking/fixing them today.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
index 601e307..485694b 100644
--- a/scripts/qapi-event.py
+++ b/scripts/qapi-event.py
@@ -23,11 +23,11 @@ def _generate_event_api_name(event_name, params):
     if params:
         for argname, argentry, optional, structured in parse_args(params):
             if optional:
-                api_name += "bool has_%s,\n" % c_var(argname)
+                api_name += "bool has_%s,\n" % c_arg(argname)
                 api_name += "".ljust(l)
 
             api_name += "%s %s,\n" % (c_type(argentry, is_param=True),
-                                      c_var(argname))
+                                      c_arg(argname))
             api_name += "".ljust(l)
 
     api_name += "Error **errp)"
@@ -98,7 +98,7 @@ def generate_event_implement(api_name, event_name, params):
                 ret += mcgen("""
     if (has_%(var)s) {
 """,
-                             var = c_var(argname))
+                             var = c_arg(argname))
                 push_indent()
 
             if argentry == "str":
@@ -113,7 +113,7 @@ def generate_event_implement(api_name, event_name, params):
     }
 """,
                          var_type = var_type,
-                         var = c_var(argname),
+                         var = c_arg(argname),
                          type = type_name(argentry),
                          name = argname)
 
diff --git a/scripts/qapi.py b/scripts/qapi.py
index 77d46aa..bfc1aaf 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -434,6 +434,10 @@ def c_var(name, protect=True):
 def c_fun(name, protect=True):
     return c_var(name, protect).replace('.', '_')
 
+# Should be used where vendor extensions are supported
+def c_arg(name):
+	return c_var(name).replace('.', '_')
+
 def c_list_type(name):
     return '%sList' % name