Electric control apparatus operable on object-oriented program

An electronic control apparatus provided with a plurality of unit processing means for performing processes for realizing unit functions according to object-oriented programming that is methods of objects formed by dividing a control program into unit functions corresponding to respective objects in which any one of the plurality of unit processing means performs process operation alternatively and the unit processing means generate a message served as a process request which indicates a unit processing means as the destination during the process operation, and the unit processing means which corresponds to the destination of the message thereby performs the process, the message generated by the unit processing means is categorized into a first type message which contains no count value for indicating the delay time until the time when the unit processing means corresponding to the destination of the message starts process operation and a second type message which contains a count value,

• wherein the electronic control apparatus comprises:
• first storage control means that stores the first type message generated by the unit processing means in a first message storage means;
• activation control means that reads out the first type message firstly stored among first type messages stored in the first message storage means at the time point when any one of the plurality of unit processing means completed the process operation, controls the unit processing means corresponding to the destination of the read first type message to start the process, and deletes the read out first type message from the message storage means;
• second storage control means that stores the second type message generated from the unit processing means in the second message storage means and
• delay control means that reduces the count value of the second type message stored in the second message storage means every time when a predetermined event occurs and re-stores the second type message in the first message storage means as the first type message when the count value reaches a predetermined value.