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qapi: Consistent generated code: prefer error 'err' 

We had some pointless differences in the generated code for visit,
command marshalling, and events; unifying them makes it easier for
future patches to consolidate to common helper functions.
This is one patch of a series to clean up these differences.

This patch consistently names the local error variable 'err' rather
than 'local_err'.

No change in semantics to the generated code.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-11-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2015-09-29 16:21:08 -06:00 committed by Markus Armbruster
parent 376863ef48
commit 2a0f50e8d9
3 changed files with 34 additions and 34 deletions
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28
docs/qapi-code-gen.txt
View File

@ -916,20 +916,20 @@ Example:
static void qmp_marshal_output_UserDefOne(UserDefOne *ret_in, QObject **ret_out, Error **errp) static void qmp_marshal_output_UserDefOne(UserDefOne *ret_in, QObject **ret_out, Error **errp)
{ {
Error *local_err = NULL; Error *err = NULL;
QmpOutputVisitor *mo = qmp_output_visitor_new(); QmpOutputVisitor *mo = qmp_output_visitor_new();
QapiDeallocVisitor *md; QapiDeallocVisitor *md;
Visitor *v; Visitor *v;
v = qmp_output_get_visitor(mo); v = qmp_output_get_visitor(mo);
visit_type_UserDefOne(v, &ret_in, "unused", &local_err); visit_type_UserDefOne(v, &ret_in, "unused", &err);
if (local_err) { if (err) {
goto out; goto out;
} }
*ret_out = qmp_output_get_qobject(mo); *ret_out = qmp_output_get_qobject(mo);
out: out:
error_propagate(errp, local_err); error_propagate(errp, err);
qmp_output_visitor_cleanup(mo); qmp_output_visitor_cleanup(mo);
md = qapi_dealloc_visitor_new(); md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md); v = qapi_dealloc_get_visitor(md);
@ -939,7 +939,7 @@ Example:
static void qmp_marshal_my_command(QDict *args, QObject **ret, Error **errp) static void qmp_marshal_my_command(QDict *args, QObject **ret, Error **errp)
{ {
Error *local_err = NULL; Error *err = NULL;
UserDefOne *retval; UserDefOne *retval;
QmpInputVisitor *mi = qmp_input_visitor_new_strict(QOBJECT(args)); QmpInputVisitor *mi = qmp_input_visitor_new_strict(QOBJECT(args));
QapiDeallocVisitor *md; QapiDeallocVisitor *md;
@ -947,20 +947,20 @@ Example:
UserDefOne *arg1 = NULL; UserDefOne *arg1 = NULL;
v = qmp_input_get_visitor(mi); v = qmp_input_get_visitor(mi);
visit_type_UserDefOne(v, &arg1, "arg1", &local_err); visit_type_UserDefOne(v, &arg1, "arg1", &err);
if (local_err) { if (err) {
goto out; goto out;
} }
retval = qmp_my_command(arg1, &local_err); retval = qmp_my_command(arg1, &err);
if (local_err) { if (err) {
goto out; goto out;
} }
qmp_marshal_output_UserDefOne(retval, ret, &local_err); qmp_marshal_output_UserDefOne(retval, ret, &err);
out: out:
error_propagate(errp, local_err); error_propagate(errp, err);
qmp_input_visitor_cleanup(mi); qmp_input_visitor_cleanup(mi);
md = qapi_dealloc_visitor_new(); md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md); v = qapi_dealloc_get_visitor(md);
@ -1007,7 +1007,7 @@ Example:
void qapi_event_send_my_event(Error **errp) void qapi_event_send_my_event(Error **errp)
{ {
QDict *qmp; QDict *qmp;
Error *local_err = NULL; Error *err = NULL;
QMPEventFuncEmit emit; QMPEventFuncEmit emit;
emit = qmp_event_get_func_emit(); emit = qmp_event_get_func_emit();
if (!emit) { if (!emit) {
@ -1016,9 +1016,9 @@ Example:
qmp = qmp_event_build_dict("MY_EVENT"); qmp = qmp_event_build_dict("MY_EVENT");
emit(EXAMPLE_QAPI_EVENT_MY_EVENT, qmp, &local_err); emit(EXAMPLE_QAPI_EVENT_MY_EVENT, qmp, &err);
error_propagate(errp, local_err); error_propagate(errp, err);
QDECREF(qmp); QDECREF(qmp);
} }

22
scripts/qapi-commands.py
View File

@ -53,14 +53,14 @@ def gen_call(name, arg_type, ret_type):
push_indent() push_indent()
ret = mcgen(''' ret = mcgen('''
%(lhs)sqmp_%(c_name)s(%(args)s&local_err); %(lhs)sqmp_%(c_name)s(%(args)s&err);
''', ''',
c_name=c_name(name), args=argstr, lhs=lhs) c_name=c_name(name), args=argstr, lhs=lhs)
if ret_type: if ret_type:
ret += gen_err_check('local_err') ret += gen_err_check('err')
ret += mcgen(''' ret += mcgen('''
qmp_marshal_output_%(c_name)s(retval, ret, &local_err); qmp_marshal_output_%(c_name)s(retval, ret, &err);
''', ''',
c_name=ret_type.c_name()) c_name=ret_type.c_name())
pop_indent() pop_indent()
@ -69,7 +69,7 @@ qmp_marshal_output_%(c_name)s(retval, ret, &local_err);
def gen_marshal_vars(arg_type, ret_type): def gen_marshal_vars(arg_type, ret_type):
ret = mcgen(''' ret = mcgen('''
Error *local_err = NULL; Error *err = NULL;
''') ''')
push_indent() push_indent()
@ -127,8 +127,8 @@ md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md); v = qapi_dealloc_get_visitor(md);
''') ''')
else: else:
errparg = '&local_err' errparg = '&err'
errarg = 'local_err' errarg = 'err'
ret += mcgen(''' ret += mcgen('''
v = qmp_input_get_visitor(mi); v = qmp_input_get_visitor(mi);
''') ''')
@ -171,20 +171,20 @@ def gen_marshal_output(ret_type):
static void qmp_marshal_output_%(c_name)s(%(c_type)s ret_in, QObject **ret_out, Error **errp) static void qmp_marshal_output_%(c_name)s(%(c_type)s ret_in, QObject **ret_out, Error **errp)
{ {
Error *local_err = NULL; Error *err = NULL;
QmpOutputVisitor *mo = qmp_output_visitor_new(); QmpOutputVisitor *mo = qmp_output_visitor_new();
QapiDeallocVisitor *md; QapiDeallocVisitor *md;
Visitor *v; Visitor *v;
v = qmp_output_get_visitor(mo); v = qmp_output_get_visitor(mo);
visit_type_%(c_name)s(v, &ret_in, "unused", &local_err); visit_type_%(c_name)s(v, &ret_in, "unused", &err);
if (local_err) { if (err) {
goto out; goto out;
} }
*ret_out = qmp_output_get_qobject(mo); *ret_out = qmp_output_get_qobject(mo);
out: out:
error_propagate(errp, local_err); error_propagate(errp, err);
qmp_output_visitor_cleanup(mo); qmp_output_visitor_cleanup(mo);
md = qapi_dealloc_visitor_new(); md = qapi_dealloc_visitor_new();
v = qapi_dealloc_get_visitor(md); v = qapi_dealloc_get_visitor(md);
@ -227,7 +227,7 @@ def gen_marshal(name, arg_type, ret_type):
out: out:
''') ''')
ret += mcgen(''' ret += mcgen('''
error_propagate(errp, local_err); error_propagate(errp, err);
''') ''')
ret += gen_marshal_input_visit(arg_type, dealloc=True) ret += gen_marshal_input_visit(arg_type, dealloc=True)
ret += mcgen(''' ret += mcgen('''

18
scripts/qapi-event.py
View File

@ -34,7 +34,7 @@ def gen_event_send(name, arg_type):
%(proto)s %(proto)s
{ {
QDict *qmp; QDict *qmp;
Error *local_err = NULL; Error *err = NULL;
QMPEventFuncEmit emit; QMPEventFuncEmit emit;
''', ''',
proto=gen_event_send_proto(name, arg_type)) proto=gen_event_send_proto(name, arg_type))
@ -67,8 +67,8 @@ def gen_event_send(name, arg_type):
g_assert(v); g_assert(v);
/* Fake visit, as if all members are under a structure */ /* Fake visit, as if all members are under a structure */
visit_start_struct(v, NULL, "", "%(name)s", 0, &local_err); visit_start_struct(v, NULL, "", "%(name)s", 0, &err);
if (local_err) { if (err) {
goto clean; goto clean;
} }
@ -90,8 +90,8 @@ def gen_event_send(name, arg_type):
cast = '' cast = ''
ret += mcgen(''' ret += mcgen('''
visit_type_%(c_type)s(v, %(cast)s&%(c_name)s, "%(name)s", &local_err); visit_type_%(c_type)s(v, %(cast)s&%(c_name)s, "%(name)s", &err);
if (local_err) { if (err) {
goto clean; goto clean;
} }
''', ''',
@ -108,8 +108,8 @@ def gen_event_send(name, arg_type):
ret += mcgen(''' ret += mcgen('''
visit_end_struct(v, &local_err); visit_end_struct(v, &err);
if (local_err) { if (err) {
goto clean; goto clean;
} }
@ -120,7 +120,7 @@ def gen_event_send(name, arg_type):
''') ''')
ret += mcgen(''' ret += mcgen('''
emit(%(c_enum)s, qmp, &local_err); emit(%(c_enum)s, qmp, &err);
''', ''',
c_enum=c_enum_const(event_enum_name, name)) c_enum=c_enum_const(event_enum_name, name))
@ -131,7 +131,7 @@ def gen_event_send(name, arg_type):
qmp_output_visitor_cleanup(qov); qmp_output_visitor_cleanup(qov);
''') ''')
ret += mcgen(''' ret += mcgen('''
error_propagate(errp, local_err); error_propagate(errp, err);
QDECREF(qmp); QDECREF(qmp);
} }
''') ''')