Function RM_InfoAddSection

app/redis-6.2.6/src/module.c:6905–6931

Used to start a new section, before adding any fields. the section name will * be prefixed by ` _` and must only include A-Z,a-z,0-9. * NULL or empty string indicates the default section (only ` `) is used. * When return value is REDISMODULE_ERR, the section should and will be skipped. */

 * NULL or empty string indicates the default section (only `<modulename>`) is used.
 * When return value is REDISMODULE_ERR, the section should and will be skipped. */
int RM_InfoAddSection(RedisModuleInfoCtx *ctx, char *name) {
    sds full_name = sdsdup(ctx->module->name);
    if (name != NULL && strlen(name) > 0)
        full_name = sdscatfmt(full_name, "_%s", name);

    /* Implicitly end dicts, instead of returning an error which is likely un checked. */
    if (ctx->in_dict_field)
        RM_InfoEndDictField(ctx);

    /* proceed only if:
     * 1) no section was requested (emit all)
     * 2) the module name was requested (emit all)
     * 3) this specific section was requested. */
    if (ctx->requested_section) {
        if (strcasecmp(ctx->requested_section, full_name) &&
            strcasecmp(ctx->requested_section, ctx->module->name)) {
            sdsfree(full_name);
            ctx->in_section = 0;
            return REDISMODULE_ERR;
        }
    }
    if (ctx->sections++) ctx->info = sdscat(ctx->info,"\r\n");
    ctx->info = sdscatfmt(ctx->info, "# %S\r\n", full_name);
    ctx->in_section = 1;
    sdsfree(full_name);
    return REDISMODULE_OK;
}

/* Starts a dict field, similar to the ones in INFO KEYSPACE. Use normal
 * RedisModule_InfoAddField* functions to add the items to this field, and