Function RM_LoadDataTypeFromString

src/module.cpp:5091–5109

Decode a serialized representation of a module data type 'mt' from string * 'str' and return a newly allocated value, or NULL if decoding failed. * * This call basically reuses the 'rdb_load' callback which module data types * implement in order to allow a module to arbitrarily serialize/de-serialize * keys, similar to how the Redis 'DUMP' and 'RESTORE' commands are implemented. * * Modules

 * data by producing an error message and terminating the process.
 */
void *RM_LoadDataTypeFromString(const RedisModuleString *str, const moduleType *mt) {
    rio payload;
    RedisModuleIO io;
    void *ret;

    rioInitWithBuffer(&payload, szFromObj(str));
    moduleInitIOContext(io,(moduleType *)mt,&payload,NULL);

    /* All RM_Save*() calls always write a version 2 compatible format, so we
     * need to make sure we read the same.
     */
    io.ver = 2;
    ret = mt->rdb_load(&io,0);
    if (io.ctx) {
        moduleFreeContext(io.ctx);
        zfree(io.ctx);
    }
    return ret;
}

/* Encode a module data type 'mt' value 'data' into serialized form, and return it
 * as a newly allocated RedisModuleString.