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[Qemu-devel] [PULL 02/20] qapi: Normalize marshalling's visitor initiali
From: |
Luiz Capitulino |
Subject: |
[Qemu-devel] [PULL 02/20] qapi: Normalize marshalling's visitor initialization and cleanup |
Date: |
Fri, 16 May 2014 11:30:17 -0400 |
From: Markus Armbruster <address@hidden>
Input and output marshalling functions do it differently. Change them
to work the same: initialize the I/O visitor, use it, clean it up,
initialize the dealloc visitor, use it, clean it up.
This delays dealloc visitor initialization in output marshalling
functions, and input visitor cleanup in input marshalling functions.
No functional change, but the latter will be convenient when I change
the error handling.
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Signed-off-by: Luiz Capitulino <address@hidden>
---
docs/qapi-code-gen.txt | 8 ++++----
scripts/qapi-commands.py | 27 ++++++++++++---------------
2 files changed, 16 insertions(+), 19 deletions(-)
diff --git a/docs/qapi-code-gen.txt b/docs/qapi-code-gen.txt
index b915c4d..1a635e2 100644
--- a/docs/qapi-code-gen.txt
+++ b/docs/qapi-code-gen.txt
@@ -434,8 +434,8 @@ Example:
static void qmp_marshal_output_my_command(UserDefOne * ret_in, QObject
**ret_out, Error **errp)
{
- QapiDeallocVisitor *md = qapi_dealloc_visitor_new();
QmpOutputVisitor *mo = qmp_output_visitor_new();
+ QapiDeallocVisitor *md;
Visitor *v;
v = qmp_output_get_visitor(mo);
@@ -444,6 +444,7 @@ Example:
*ret_out = qmp_output_get_qobject(mo);
}
qmp_output_visitor_cleanup(mo);
+ md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
visit_type_UserDefOne(v, &ret_in, "unused", NULL);
qapi_dealloc_visitor_cleanup(md);
@@ -452,15 +453,13 @@ Example:
static void qmp_marshal_input_my_command(QDict *args, QObject **ret, Error
**errp)
{
UserDefOne * retval = NULL;
- QmpInputVisitor *mi;
+ QmpInputVisitor *mi = qmp_input_visitor_new_strict(QOBJECT(args));
QapiDeallocVisitor *md;
Visitor *v;
UserDefOne * arg1 = NULL;
- mi = qmp_input_visitor_new_strict(QOBJECT(args));
v = qmp_input_get_visitor(mi);
visit_type_UserDefOne(v, &arg1, "arg1", errp);
- qmp_input_visitor_cleanup(mi);
if (error_is_set(errp)) {
goto out;
@@ -471,6 +470,7 @@ Example:
}
out:
+ qmp_input_visitor_cleanup(mi);
md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
visit_type_UserDefOne(v, &arg1, "arg1", NULL);
diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index 8d9096f..1399826 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -69,16 +69,17 @@ def gen_marshal_output_call(name, ret_type):
return ""
return "qmp_marshal_output_%s(retval, ret, errp);" % c_fun(name)
-def gen_visitor_input_containers_decl(args):
+def gen_visitor_input_containers_decl(args, obj):
ret = ""
push_indent()
if len(args) > 0:
ret += mcgen('''
-QmpInputVisitor *mi;
+QmpInputVisitor *mi = qmp_input_visitor_new_strict(%(obj)s);
QapiDeallocVisitor *md;
Visitor *v;
-''')
+''',
+ obj=obj)
pop_indent()
return ret.rstrip()
@@ -106,7 +107,7 @@ bool has_%(argname)s = false;
pop_indent()
return ret.rstrip()
-def gen_visitor_input_block(args, obj, dealloc=False):
+def gen_visitor_input_block(args, dealloc=False):
ret = ""
errparg = 'errp'
@@ -118,15 +119,14 @@ def gen_visitor_input_block(args, obj, dealloc=False):
if dealloc:
errparg = 'NULL'
ret += mcgen('''
+qmp_input_visitor_cleanup(mi);
md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
''')
else:
ret += mcgen('''
-mi = qmp_input_visitor_new_strict(%(obj)s);
v = qmp_input_get_visitor(mi);
-''',
- obj=obj)
+''')
for argname, argtype, optional, structured in parse_args(args):
if optional:
@@ -152,10 +152,6 @@ visit_end_optional(v, %(errp)s);
ret += mcgen('''
qapi_dealloc_visitor_cleanup(md);
''')
- else:
- ret += mcgen('''
-qmp_input_visitor_cleanup(mi);
-''')
pop_indent()
return ret.rstrip()
@@ -166,8 +162,8 @@ def gen_marshal_output(name, args, ret_type, middle_mode):
ret = mcgen('''
static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s ret_in, QObject
**ret_out, Error **errp)
{
- QapiDeallocVisitor *md = qapi_dealloc_visitor_new();
QmpOutputVisitor *mo = qmp_output_visitor_new();
+ QapiDeallocVisitor *md;
Visitor *v;
v = qmp_output_get_visitor(mo);
@@ -176,6 +172,7 @@ static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s
ret_in, QObject **ret_o
*ret_out = qmp_output_get_qobject(mo);
}
qmp_output_visitor_cleanup(mo);
+ md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md);
%(visitor)s(v, &ret_in, "unused", NULL);
qapi_dealloc_visitor_cleanup(md);
@@ -228,9 +225,9 @@ def gen_marshal_input(name, args, ret_type, middle_mode):
%(visitor_input_block)s
''',
-
visitor_input_containers_decl=gen_visitor_input_containers_decl(args),
+
visitor_input_containers_decl=gen_visitor_input_containers_decl(args,
"QOBJECT(args)"),
visitor_input_vars_decl=gen_visitor_input_vars_decl(args),
- visitor_input_block=gen_visitor_input_block(args,
"QOBJECT(args)"))
+ visitor_input_block=gen_visitor_input_block(args))
else:
ret += mcgen('''
(void)args;
@@ -250,7 +247,7 @@ out:
ret += mcgen('''
%(visitor_input_block_cleanup)s
''',
- visitor_input_block_cleanup=gen_visitor_input_block(args,
None,
+ visitor_input_block_cleanup=gen_visitor_input_block(args,
dealloc=True))
if middle_mode:
--
1.9.0
- [Qemu-devel] [PULL 15/20] monitor: Add chardev-remove command completion., (continued)
- [Qemu-devel] [PULL 15/20] monitor: Add chardev-remove command completion., Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 19/20] monitor: Add netdev_del id argument completion., Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 06/20] qapi: Clean up shadowing of parameters and locals in inner scopes, Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 18/20] monitor: Add netdev_add type argument completion., Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 12/20] qapi: Replace uncommon use of the error API by the common one, Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 03/20] qapi: Remove unused Visitor callbacks start_handle(), end_handle(), Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 05/20] qapi-visit.py: Clean up confusing push_indent() / pop_indent() use, Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 10/20] hw: Don't call visit_end_struct() after visit_start_struct() fails, Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 04/20] qapi: Replace start_optional()/end_optional() by optional(), Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 07/20] qapi-visit.py: Clean up a sloppy use of field prefix, Luiz Capitulino, 2014/05/16
- [Qemu-devel] [PULL 02/20] qapi: Normalize marshalling's visitor initialization and cleanup,
Luiz Capitulino <=
- Re: [Qemu-devel] [PULL 00/20] QMP queue, Peter Maydell, 2014/05/19