C++ qstring_from_str函数代码示例

static void test_event_c(TestEventData *data,
                         const void *unused)
{
    QDict *d, *d_data, *d_b;

    UserDefOne b;
    b.integer = 2;
    b.string = g_strdup("test1");
    b.has_enum1 = false;

    d_b = qdict_new();
    qdict_put(d_b, "integer", qint_from_int(2));
    qdict_put(d_b, "string", qstring_from_str("test1"));

    d_data = qdict_new();
    qdict_put(d_data, "a", qint_from_int(1));
    qdict_put(d_data, "b", d_b);
    qdict_put(d_data, "c", qstring_from_str("test2"));

    d = data->expect;
    qdict_put(d, "event", qstring_from_str("EVENT_C"));
    qdict_put(d, "data", d_data);

    qapi_event_send_event_c(true, 1, true, &b, "test2", &error_abort);

    g_free(b.string);
}

/* Valid blkverify filenames look like blkverify:path/to/raw_image:path/to/image */
static void blkverify_parse_filename(const char *filename, QDict *options,
                                     Error **errp)
{
    const char *c;
    QString *raw_path;


    /* Parse the blkverify: prefix */
    if (!strstart(filename, "blkverify:", &filename)) {
        /* There was no prefix; therefore, all options have to be already
           present in the QDict (except for the filename) */
        qdict_put(options, "x-image", qstring_from_str(filename));
        return;
    }

    /* Parse the raw image filename */
    c = strchr(filename, ':');
    if (c == NULL) {
        error_setg(errp, "blkverify requires raw copy and original image path");
        return;
    }

    /* TODO Implement option pass-through and set raw.filename here */
    raw_path = qstring_from_substr(filename, 0, c - filename - 1);
    qdict_put(options, "x-raw", raw_path);

    /* TODO Allow multi-level nesting and set file.filename here */
    filename = c + 1;
    qdict_put(options, "x-image", qstring_from_str(filename));
}

/* test commands that involve both input parameters and return values */
static void test_dispatch_cmd_io(void)
{
    QDict *req = qdict_new();
    QDict *args = qdict_new();
    QDict *ud1a = qdict_new();
    QDict *ud1b = qdict_new();
    QObject *resp;

    qdict_put_obj(ud1a, "integer", QOBJECT(qint_from_int(42)));
    qdict_put_obj(ud1a, "string", QOBJECT(qstring_from_str("hello")));
    qdict_put_obj(ud1b, "integer", QOBJECT(qint_from_int(422)));
    qdict_put_obj(ud1b, "string", QOBJECT(qstring_from_str("hello2")));
    qdict_put_obj(args, "ud1a", QOBJECT(ud1a));
    qdict_put_obj(args, "ud1b", QOBJECT(ud1b));
    qdict_put_obj(req, "arguments", QOBJECT(args));

    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));

    /* TODO: put in full payload and check for errors */
    resp = qmp_dispatch(QOBJECT(req));
    assert(resp != NULL);
    assert(!qdict_haskey(qobject_to_qdict(resp), "error"));
    g_print("\nresp: %s\n", qstring_get_str(qobject_to_json_pretty(resp)));

    qobject_decref(resp);
    QDECREF(req);
}

/* test commands that return an error due to invalid parameters */
static void test_dispatch_cmd_failure(void)
{
    QDict *req = qdict_new();
    QDict *args = qdict_new();
    QObject *resp;

    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));

    resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
    assert(resp != NULL);
    assert(qdict_haskey(qobject_to_qdict(resp), "error"));

    qobject_decref(resp);
    QDECREF(req);

    /* check that with extra arguments it throws an error */
    req = qdict_new();
    qdict_put(args, "a", qint_from_int(66));
    qdict_put(req, "arguments", args);

    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd")));

    resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
    assert(resp != NULL);
    assert(qdict_haskey(qobject_to_qdict(resp), "error"));

    qobject_decref(resp);
    QDECREF(req);
}

static void test_qemu_opt_get_size(void)
{
    QemuOptsList *list;
    QemuOpts *opts;
    uint64_t opt;
    QDict *dict;

    list = qemu_find_opts("opts_list_02");
    g_assert(list != NULL);
    g_assert(QTAILQ_EMPTY(&list->head));
    g_assert_cmpstr(list->name, ==, "opts_list_02");

    /* should not find anything at this point */
    opts = qemu_opts_find(list, NULL);
    g_assert(opts == NULL);

    /* create the opts */
    opts = qemu_opts_create(list, NULL, 0, &error_abort);
    g_assert(opts != NULL);
    g_assert(!QTAILQ_EMPTY(&list->head));

    /* haven't set anything to size1 yet, so defval should be returned */
    opt = qemu_opt_get_size(opts, "size1", 5);
    g_assert(opt == 5);

    dict = qdict_new();
    g_assert(dict != NULL);

    qdict_put(dict, "size1", qstring_from_str("10"));

    qemu_opts_absorb_qdict(opts, dict, &error_abort);
    g_assert(error_abort == NULL);

    /* now we have set size1, should know about it */
    opt = qemu_opt_get_size(opts, "size1", 5);
    g_assert(opt == 10);

    /* reset value */
    qdict_put(dict, "size1", qstring_from_str("15"));

    qemu_opts_absorb_qdict(opts, dict, &error_abort);
    g_assert(error_abort == NULL);

    /* test the reset value */
    opt = qemu_opt_get_size(opts, "size1", 5);
    g_assert(opt == 15);

    qdict_del(dict, "size1");
    g_free(dict);

    qemu_opts_del(opts);

    /* should not find anything at this point */
    opts = qemu_opts_find(list, NULL);
    g_assert(opts == NULL);
}

static void qobject_output_type_str(Visitor *v, const char *name, char **obj,
                                    Error **errp)
{
    QObjectOutputVisitor *qov = to_qov(v);
    if (*obj) {
        qobject_output_add(qov, name, qstring_from_str(*obj));
    } else {
        qobject_output_add(qov, name, qstring_from_str(""));
    }
}

static void qdict_crumple_test_bad_inputs(void)
{
    QDict *src;
    Error *error = NULL;

    src = qdict_new();
    /* rule.0 can't be both a string and a dict */
    qdict_put(src, "rule.0", qstring_from_str("fred"));
    qdict_put(src, "rule.0.policy", qstring_from_str("allow"));

    g_assert(qdict_crumple(src, &error) == NULL);
    g_assert(error != NULL);
    error_free(error);
    error = NULL;
    QDECREF(src);

    src = qdict_new();
    /* rule can't be both a list and a dict */
    qdict_put(src, "rule.0", qstring_from_str("fred"));
    qdict_put(src, "rule.a", qstring_from_str("allow"));

    g_assert(qdict_crumple(src, &error) == NULL);
    g_assert(error != NULL);
    error_free(error);
    error = NULL;
    QDECREF(src);

    src = qdict_new();
    /* The input should be flat, ie no dicts or lists */
    qdict_put(src, "rule.a", qdict_new());
    qdict_put(src, "rule.b", qstring_from_str("allow"));

    g_assert(qdict_crumple(src, &error) == NULL);
    g_assert(error != NULL);
    error_free(error);
    error = NULL;
    QDECREF(src);

    src = qdict_new();
    /* List indexes must not have gaps */
    qdict_put(src, "rule.0", qstring_from_str("deny"));
    qdict_put(src, "rule.3", qstring_from_str("allow"));

    g_assert(qdict_crumple(src, &error) == NULL);
    g_assert(error != NULL);
    error_free(error);
    error = NULL;
    QDECREF(src);

    src = qdict_new();
    /* List indexes must be in %zu format */
    qdict_put(src, "rule.0", qstring_from_str("deny"));
    qdict_put(src, "rule.+1", qstring_from_str("allow"));

    g_assert(qdict_crumple(src, &error) == NULL);
    g_assert(error != NULL);
    error_free(error);
    error = NULL;
    QDECREF(src);
}

static void qdict_crumple_test_recursive(void)
{
    QDict *src, *dst, *rule, *vnc, *acl, *listen;
    QList *rules;

    src = qdict_new();
    qdict_put(src, "vnc.listen.addr", qstring_from_str("127.0.0.1"));
    qdict_put(src, "vnc.listen.port", qstring_from_str("5901"));
    qdict_put(src, "vnc.acl.rules.0.match", qstring_from_str("fred"));
    qdict_put(src, "vnc.acl.rules.0.policy", qstring_from_str("allow"));
    qdict_put(src, "vnc.acl.rules.1.match", qstring_from_str("bob"));
    qdict_put(src, "vnc.acl.rules.1.policy", qstring_from_str("deny"));
    qdict_put(src, "vnc.acl.default", qstring_from_str("deny"));
    qdict_put(src, "vnc.acl..name", qstring_from_str("acl0"));
    qdict_put(src, "vnc.acl.rule..name", qstring_from_str("acl0"));

    dst = qobject_to_qdict(qdict_crumple(src, &error_abort));
    g_assert(dst);
    g_assert_cmpint(qdict_size(dst), ==, 1);

    vnc = qdict_get_qdict(dst, "vnc");
    g_assert(vnc);
    g_assert_cmpint(qdict_size(vnc), ==, 3);

    listen = qdict_get_qdict(vnc, "listen");
    g_assert(listen);
    g_assert_cmpint(qdict_size(listen), ==, 2);
    g_assert_cmpstr("127.0.0.1", ==, qdict_get_str(listen, "addr"));
    g_assert_cmpstr("5901", ==, qdict_get_str(listen, "port"));

    acl = qdict_get_qdict(vnc, "acl");
    g_assert(acl);
    g_assert_cmpint(qdict_size(acl), ==, 3);

    rules = qdict_get_qlist(acl, "rules");
    g_assert(rules);
    g_assert_cmpint(qlist_size(rules), ==, 2);

    rule = qobject_to_qdict(qlist_pop(rules));
    g_assert(rule);
    g_assert_cmpint(qdict_size(rule), ==, 2);
    g_assert_cmpstr("fred", ==, qdict_get_str(rule, "match"));
    g_assert_cmpstr("allow", ==, qdict_get_str(rule, "policy"));
    QDECREF(rule);

    rule = qobject_to_qdict(qlist_pop(rules));
    g_assert(rule);
    g_assert_cmpint(qdict_size(rule), ==, 2);
    g_assert_cmpstr("bob", ==, qdict_get_str(rule, "match"));
    g_assert_cmpstr("deny", ==, qdict_get_str(rule, "policy"));
    QDECREF(rule);

    /* With recursive crumpling, we should see all names unescaped */
    g_assert_cmpstr("acl0", ==, qdict_get_str(vnc, "acl.name"));
    g_assert_cmpstr("acl0", ==, qdict_get_str(acl, "rule.name"));

    QDECREF(src);
    QDECREF(dst);
}

/* test generated deallocation on an object whose construction was prematurely
 * terminated due to an error */
static void test_dealloc_partial(void)
{
    static const char text[] = "don't leak me";

    UserDefTwo *ud2 = NULL;
    Error *err = NULL;

    /* create partial object */
    {
        QDict *ud2_dict;
        Visitor *v;

        ud2_dict = qdict_new();
        qdict_put_obj(ud2_dict, "string0", QOBJECT(qstring_from_str(text)));

        v = qobject_input_visitor_new(QOBJECT(ud2_dict));
        visit_type_UserDefTwo(v, NULL, &ud2, &err);
        visit_free(v);
        QDECREF(ud2_dict);
    }

    /* verify that visit_type_XXX() cleans up properly on error */
    error_free_or_abort(&err);
    assert(!ud2);

    /* Manually create a partial object, leaving ud2->dict1 at NULL */
    ud2 = g_new0(UserDefTwo, 1);
    ud2->string0 = g_strdup(text);

    /* tear down partial object */
    qapi_free_UserDefTwo(ud2);
}

/* test generated deallocation on an object whose construction was prematurely
 * terminated due to an error */
static void test_dealloc_partial(void)
{
    static const char text[] = "don't leak me";

    UserDefTwo *ud2 = NULL;
    Error *err = NULL;

    /* create partial object */
    {
        QDict *ud2_dict;
        QmpInputVisitor *qiv;

        ud2_dict = qdict_new();
        qdict_put_obj(ud2_dict, "string0", QOBJECT(qstring_from_str(text)));

        qiv = qmp_input_visitor_new(QOBJECT(ud2_dict));
        visit_type_UserDefTwo(qmp_input_get_visitor(qiv), &ud2, NULL, &err);
        qmp_input_visitor_cleanup(qiv);
        QDECREF(ud2_dict);
    }

    /* verify partial success */
    assert(ud2 != NULL);
    assert(ud2->string0 != NULL);
    assert(strcmp(ud2->string0, text) == 0);
    assert(ud2->dict1 == NULL);

    /* confirm & release construction error */
    assert(err != NULL);
    error_free(err);

    /* tear down partial object */
    qapi_free_UserDefTwo(ud2);
}

static void blkverify_refresh_filename(BlockDriverState *bs)
{
    BDRVBlkverifyState *s = bs->opaque;

    /* bs->file has already been refreshed */
    bdrv_refresh_filename(s->test_file);

    if (bs->file->full_open_options && s->test_file->full_open_options) {
        QDict *opts = qdict_new();
        qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkverify")));

        QINCREF(bs->file->full_open_options);
        qdict_put_obj(opts, "raw", QOBJECT(bs->file->full_open_options));
        QINCREF(s->test_file->full_open_options);
        qdict_put_obj(opts, "test", QOBJECT(s->test_file->full_open_options));

        bs->full_open_options = opts;
    }

    if (bs->file->exact_filename[0] && s->test_file->exact_filename[0]) {
        snprintf(bs->exact_filename, sizeof(bs->exact_filename),
                 "blkverify:%s:%s",
                 bs->file->exact_filename, s->test_file->exact_filename);
    }
}

void do_info_migrate(Monitor *mon, QObject **ret_data)
{
    QDict *qdict;
    MigrationState *s = current_migration;

    if (s) {
        switch (s->get_status(s)) {
        case MIG_STATE_ACTIVE:
            qdict = qdict_new();
            qdict_put(qdict, "status", qstring_from_str("active"));

            migrate_put_status(qdict, "ram", ram_bytes_transferred(),
                               ram_bytes_remaining(), ram_bytes_total());

            if (blk_mig_active()) {
                migrate_put_status(qdict, "disk", blk_mig_bytes_transferred(),
                                   blk_mig_bytes_remaining(),
                                   blk_mig_bytes_total());
            }

            *ret_data = QOBJECT(qdict);
            break;
        case MIG_STATE_COMPLETED:
            *ret_data = qobject_from_jsonf("{ 'status': 'completed' }");
            break;
        case MIG_STATE_ERROR:
            *ret_data = qobject_from_jsonf("{ 'status': 'failed' }");
            break;
        case MIG_STATE_CANCELLED:
            *ret_data = qobject_from_jsonf("{ 'status': 'cancelled' }");
            break;
        }
    }
}

/* test commands that involve both input parameters and return values */
static void test_dispatch_cmd_io(void)
{
    QDict *req = qdict_new();
    QDict *args = qdict_new();
    QDict *args3 = qdict_new();
    QDict *ud1a = qdict_new();
    QDict *ud1b = qdict_new();
    QDict *ret, *ret_dict, *ret_dict_dict, *ret_dict_dict_userdef;
    QDict *ret_dict_dict2, *ret_dict_dict2_userdef;
    QInt *ret3;

    qdict_put_obj(ud1a, "integer", QOBJECT(qint_from_int(42)));
    qdict_put_obj(ud1a, "string", QOBJECT(qstring_from_str("hello")));
    qdict_put_obj(ud1b, "integer", QOBJECT(qint_from_int(422)));
    qdict_put_obj(ud1b, "string", QOBJECT(qstring_from_str("hello2")));
    qdict_put_obj(args, "ud1a", QOBJECT(ud1a));
    qdict_put_obj(args, "ud1b", QOBJECT(ud1b));
    qdict_put_obj(req, "arguments", QOBJECT(args));
    qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));

    ret = qobject_to_qdict(test_qmp_dispatch(req));

    assert(!strcmp(qdict_get_str(ret, "string0"), "blah1"));
    ret_dict = qdict_get_qdict(ret, "dict1");
    assert(!strcmp(qdict_get_str(ret_dict, "string1"), "blah2"));
    ret_dict_dict = qdict_get_qdict(ret_dict, "dict2");
    ret_dict_dict_userdef = qdict_get_qdict(ret_dict_dict, "userdef");
    assert(qdict_get_int(ret_dict_dict_userdef, "integer") == 42);
    assert(!strcmp(qdict_get_str(ret_dict_dict_userdef, "string"), "hello"));
    assert(!strcmp(qdict_get_str(ret_dict_dict, "string"), "blah3"));
    ret_dict_dict2 = qdict_get_qdict(ret_dict, "dict3");
    ret_dict_dict2_userdef = qdict_get_qdict(ret_dict_dict2, "userdef");
    assert(qdict_get_int(ret_dict_dict2_userdef, "integer") == 422);
    assert(!strcmp(qdict_get_str(ret_dict_dict2_userdef, "string"), "hello2"));
    assert(!strcmp(qdict_get_str(ret_dict_dict2, "string"), "blah4"));
    QDECREF(ret);

    qdict_put(args3, "a", qint_from_int(66));
    qdict_put(req, "arguments", args3);
    qdict_put(req, "execute", qstring_from_str("guest-get-time"));

    ret3 = qobject_to_qint(test_qmp_dispatch(req));
    assert(qint_get_int(ret3) == 66);
    QDECREF(ret3);

    QDECREF(req);
}

static void qjson_initfn(Object *obj)
{
    QJSON *json = (QJSON *)object_dynamic_cast(obj, TYPE_QJSON);
    assert(json);

    json->str = qstring_from_str("{ ");
    json->omit_comma = true;
}

static void test_event_b(TestEventData *data,
                         const void *unused)
{
    QDict *d;
    d = data->expect;
    qdict_put(d, "event", qstring_from_str("EVENT_B"));
    qapi_event_send_event_b(&error_abort);
}