/' µRtWare is a lightweight publish/subscribe middleware for real-time applications. It was developed as part of the software habitat for the Autonomous Mini Robot [1] (AMiRo) but can be used for other purposes as well. Copyright (C) 2018..2020 Thomas Schöpping et al. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . '/ /'### INTRO ##################################################################'/ @startuml title **µRtWare**\nurtSrtSubscriberCalculateUsefulness()\n /'### PARAMETERS & RETURN ####################################################'/ note -- **subscriber** : urt_srtsubscriber_t* -- The SRT subscriber to calculate a usefulness for. Must not be ""NULL"". -- **latency** : urt_delay_t -- Latency (of a message) as argument to calculate usefulness. ==== -- **return** : float -- Returns the usefulness as a value within [0,1]. endnote /'### PROCEDURE ##############################################################'/ start :execute the subscriber's ""usefulnesscb"" function; note The callback function must never return a negative value or a value greater than 1. endnote stop note Returns callback result value. endnote /'### OUTRO ##################################################################'/ @enduml