interactWithASV.tsx

import { Code } from "components/common"
import styles from 'styles/scss/articles/page.module.scss'

const builder_example =
`
GVariant *variant = NULL, *value = NULL;
GVariantBuilder builder;
g_variant_builder_init(&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_add(&builder, "{sv}", "name", g_variant_new_string("gia luong"));
g_variant_builder_add(&builder, "{sv}", "birth", g_variant_new_uint32(2000));
g_variant_builder_add(&builder, "{sv}", "title", g_variant_new_string("software engineer"));
g_variant_builder_add(&builder, "{sv}", "country", g_variant_new_string("Viet Nam"));
variant = g_variant_builder_end(&builder);
`

const etract_example =
`
const char *name, *title, *country;
uint32_t birth;

if ((value = g_variant_lookup_value(variant, "name", G_VARIANT_TYPE_STRING)) != NULL)
{
    name = g_variant_get_string(value, NULL);
    g_variant_unref(value);
}

if ((value = g_variant_lookup_value(variant, "birth", G_VARIANT_TYPE_UINT32)) != NULL)
{
    birth = g_variant_get_uint32(value);
    g_variant_unref(value);
}

if ((value = g_variant_lookup_value(variant, "title", G_VARIANT_TYPE_STRING)) != NULL)
{
    title = g_variant_get_string(value, NULL);
    g_variant_unref(value);
}

if ((value = g_variant_lookup_value(variant, "country", G_VARIANT_TYPE_STRING)) != NULL)
{
    country = g_variant_get_string(value, NULL);
    g_variant_unref(value);
}
`

const InteractWithASV = () => {
  return (
    <>
      <div className={styles.root}>
        <h1 className={styles.header}>Example show how to build gvariant using builder</h1>
        <p>
          When using dbus as an IPC protocol, you must use <p className={styles.quote}>GVariant</p> for comunication, example as argument of method or property. 
          Common use of <p className={styles.quote}>GVariant</p> is <p className={styles.quote}>a&#123;sv&#125;</p> becase of this dynamic, easy to add or get element.
        </p>
        <Code lang={'cpp'}>{builder_example}</Code>
        <p>
          For the extraction of gvariant, use <p className={styles.quote}>g_variant_lookup_value</p> to get value and don't forget to free it
        </p>
        <Code lang={'cpp'}>{etract_example}</Code>
      </div>
    </>
  )
}

export default InteractWithASV