gistfile1.txt

//save_topic_meta_boxes   method is hooked from 'save_post'

//this just code sample from my code

/**
  * Save topic meta boxes
  *
  * @param $topic_id
  *
  * @return mixed
  */
 public function save_topic_meta_boxes( $topic_id ) {
  
    //If calling wp_update_post, unhook this function so it doesn't loop infinitely

    remove_action( 'save_post', array( $this, 'save_topic_meta_boxes' ) );

    /// ...।now write code needed for wp_insert_post or wp_update_post

    then again attach the hook again 

    // re-hook this function
    add_action( 'save_post', array( $this, 'save_topic_meta_boxes' ) );
}