From ef6783d3f7d06cf185971afbb30ff35209e9db49 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 5 Mar 2024 15:59:15 +0100 Subject: [PATCH] target: Simplify type checks for CpuModelInfo member @props CpuModelInfo member @props is semantically a mapping from name to value, and syntactically a JSON object on the wire. This translates to QDict in C. Since the QAPI schema language lacks the means to express 'object', we use 'any' instead. This is QObject in C. Commands taking a CpuModelInfo argument need to check the QObject is a QDict. For arm, riscv, and s390x, the code checks right before passing the QObject to visit_start_struct(). visit_start_struct() then checks again. Delete the first check. The error message for @props that are not an object changes slightly to the the message we get for this kind of type error in other contexts. Minor improvement. Additionally, error messages about members of @props now refer to 'props.prop-name' instead of just 'prop-name'. Another minor improvement. Both changes are visible in tests/qtest/arm-cpu-features.c. Signed-off-by: Markus Armbruster Message-ID: <20240305145919.2186971-2-armbru@redhat.com> Acked-by: Daniel Henrique Barboza [Drop #include now superfluous] --- target/arm/arm-qmp-cmds.c | 16 ++++------------ target/riscv/riscv-qmp-cmds.c | 20 +++++--------------- target/s390x/cpu_models_sysemu.c | 16 ++++------------ tests/qtest/arm-cpu-features.c | 12 ++++++------ 4 files changed, 19 insertions(+), 45 deletions(-) diff --git a/target/arm/arm-qmp-cmds.c b/target/arm/arm-qmp-cmds.c index 2250cd7ddf..f85576f13e 100644 --- a/target/arm/arm-qmp-cmds.c +++ b/target/arm/arm-qmp-cmds.c @@ -28,7 +28,6 @@ #include "qapi/qobject-input-visitor.h" #include "qapi/qapi-commands-machine-target.h" #include "qapi/qapi-commands-misc-target.h" -#include "qapi/qmp/qerror.h" #include "qapi/qmp/qdict.h" #include "qom/qom-qobject.h" @@ -104,7 +103,7 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, Error **errp) { CpuModelExpansionInfo *expansion_info; - const QDict *qdict_in = NULL; + const QDict *qdict_in; QDict *qdict_out; ObjectClass *oc; Object *obj; @@ -151,27 +150,20 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, } } - if (model->props) { - qdict_in = qobject_to(QDict, model->props); - if (!qdict_in) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); - return NULL; - } - } - obj = object_new(object_class_get_name(oc)); - if (qdict_in) { + if (model->props) { Visitor *visitor; Error *err = NULL; visitor = qobject_input_visitor_new(model->props); - if (!visit_start_struct(visitor, NULL, NULL, 0, errp)) { + if (!visit_start_struct(visitor, "props", NULL, 0, errp)) { visit_free(visitor); object_unref(obj); return NULL; } + qdict_in = qobject_to(QDict, model->props); i = 0; while ((name = cpu_model_advertised_features[i++]) != NULL) { if (qdict_get(qdict_in, name)) { diff --git a/target/riscv/riscv-qmp-cmds.c b/target/riscv/riscv-qmp-cmds.c index c48b9cfa67..d0360c0528 100644 --- a/target/riscv/riscv-qmp-cmds.c +++ b/target/riscv/riscv-qmp-cmds.c @@ -28,7 +28,6 @@ #include "qapi/qapi-commands-machine-target.h" #include "qapi/qmp/qbool.h" #include "qapi/qmp/qdict.h" -#include "qapi/qmp/qerror.h" #include "qapi/qobject-input-visitor.h" #include "qapi/visitor.h" #include "qom/qom-qobject.h" @@ -129,18 +128,19 @@ static void riscv_obj_add_profiles_qdict(Object *obj, QDict *qdict_out) } static void riscv_cpuobj_validate_qdict_in(Object *obj, QObject *props, - const QDict *qdict_in, Error **errp) { + const QDict *qdict_in; const QDictEntry *qe; Visitor *visitor; Error *local_err = NULL; visitor = qobject_input_visitor_new(props); - if (!visit_start_struct(visitor, NULL, NULL, 0, &local_err)) { + if (!visit_start_struct(visitor, "props", NULL, 0, &local_err)) { goto err; } + qdict_in = qobject_to(QDict, props); for (qe = qdict_first(qdict_in); qe; qe = qdict_next(qdict_in, qe)) { object_property_find_err(obj, qe->key, &local_err); if (local_err) { @@ -170,7 +170,6 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, Error **errp) { CpuModelExpansionInfo *expansion_info; - const QDict *qdict_in = NULL; QDict *qdict_out; ObjectClass *oc; Object *obj; @@ -188,14 +187,6 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, return NULL; } - if (model->props) { - qdict_in = qobject_to(QDict, model->props); - if (!qdict_in) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); - return NULL; - } - } - obj = object_new(object_class_get_name(oc)); riscv_check_if_cpu_available(RISCV_CPU(obj), &local_err); @@ -205,9 +196,8 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, return NULL; } - if (qdict_in) { - riscv_cpuobj_validate_qdict_in(obj, model->props, qdict_in, - &local_err); + if (model->props) { + riscv_cpuobj_validate_qdict_in(obj, model->props, &local_err); if (local_err) { error_propagate(errp, local_err); object_unref(obj); diff --git a/target/s390x/cpu_models_sysemu.c b/target/s390x/cpu_models_sysemu.c index 63981bf36b..53bce8adb2 100644 --- a/target/s390x/cpu_models_sysemu.c +++ b/target/s390x/cpu_models_sysemu.c @@ -17,7 +17,6 @@ #include "sysemu/kvm.h" #include "qapi/error.h" #include "qapi/visitor.h" -#include "qapi/qmp/qerror.h" #include "qapi/qobject-input-visitor.h" #include "qapi/qmp/qdict.h" #include "qapi/qapi-commands-machine-target.h" @@ -101,21 +100,13 @@ static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, Error **errp) { Error *err = NULL; - const QDict *qdict = NULL; + const QDict *qdict; const QDictEntry *e; Visitor *visitor; ObjectClass *oc; S390CPU *cpu; Object *obj; - if (info->props) { - qdict = qobject_to(QDict, info->props); - if (!qdict) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); - return; - } - } - oc = cpu_class_by_name(TYPE_S390_CPU, info->name); if (!oc) { error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name); @@ -135,13 +126,14 @@ static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, return; } - if (qdict) { + if (info->props) { visitor = qobject_input_visitor_new(info->props); - if (!visit_start_struct(visitor, NULL, NULL, 0, errp)) { + if (!visit_start_struct(visitor, "props", NULL, 0, errp)) { visit_free(visitor); object_unref(obj); return; } + qdict = qobject_to(QDict, info->props); for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { if (!object_property_set(obj, e->key, visitor, &err)) { break; diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c index a8a4c668ad..1daceb2e31 100644 --- a/tests/qtest/arm-cpu-features.c +++ b/tests/qtest/arm-cpu-features.c @@ -79,7 +79,7 @@ static const char *resp_get_error(QDict *resp) g_assert(_resp); \ _error = resp_get_error(_resp); \ g_assert(_error); \ - g_assert(g_str_equal(_error, expected_error)); \ + g_assert_cmpstr(_error, ==, expected_error); \ qobject_unref(_resp); \ }) @@ -194,8 +194,8 @@ static void assert_type_full(QTestState *qts) g_assert(resp); error = resp_get_error(resp); g_assert(error); - g_assert(g_str_equal(error, - "The requested expansion type is not supported")); + g_assert_cmpstr(error, ==, + "The requested expansion type is not supported"); qobject_unref(resp); } @@ -212,8 +212,8 @@ static void assert_bad_props(QTestState *qts, const char *cpu_type) g_assert(resp); error = resp_get_error(resp); g_assert(error); - g_assert(g_str_equal(error, - "Invalid parameter type for 'props', expected: dict")); + g_assert_cmpstr(error, ==, + "Invalid parameter type for 'props', expected: object"); qobject_unref(resp); } @@ -446,7 +446,7 @@ static void test_query_cpu_model_expansion(const void *data) assert_bad_props(qts, "max"); assert_error(qts, "foo", "The CPU type 'foo' is not a recognized " "ARM CPU type", NULL); - assert_error(qts, "max", "Parameter 'not-a-prop' is unexpected", + assert_error(qts, "max", "Parameter 'props.not-a-prop' is unexpected", "{ 'not-a-prop': false }"); assert_error(qts, "host", "The CPU type 'host' requires KVM", NULL);