Communication apparatus, communication method, and nontransitory computer readable storage medium that resends data when no response is received and records the result

A communication method in a communication apparatus connected to an apparatus via a network, the method comprising:

• creating a reception controller for monitoring a receiving port;
• creating a first controller, wherein the receiving port is assigned as a data-send-source port of the first controller;
• sending, by the first controller, data to a plurality of designated destinations without waiting for a response from each of the plurality of destinations;
• recording, by a second controller, send-time information and destination information to a list, according to each data sending;
• initiating a timer upon the recording of the send-time information according to each data sending;
• in a case where a response to one of a plurality of the data sending is received via the receiving port monitored by the reception controller, recording information of a send-source of the response;
• sending a request for detailed information to the send-source of the received response,
• in a case where a predetermined amount of time has elapsed on the timer, determining, by the second controller, whether the recorded destination information in the list is recorded as the information of the send-source of the response based on a query;
• and
• resending, by the first controller, data to a destination indicated by the destination information that has not been recorded as the information of the send-source of the response, according to an instruction from the second controller based on the determination,
• wherein in a case where the predetermined amount of time has not elapsed on the timer, the determination by the second controller is not performed.

A non-transitory computer-readable storage medium storing a program for causing a computer to:

• create a reception controller for monitoring a receiving port;
• create a first controller, wherein the receiving port is assigned as a data-send-source port of the first controller;
• send, by the first controller, data to a plurality of designated destinations without waiting for a response from each of the plurality of destinations;
• record, by a second controller, send-time information and destination information to a list, according to each data sending;
• initiate a timer upon the recording of the send-time information according to each data sending;
• in a case where a response to one of a plurality of the data sending is received via the receiving port monitored by the reception controller, record information of a send-source of the response;
• send a request for detailed information to the send-source of the received response,
• in a case where a predetermined amount of time has elapsed on the timer, determine, by the second controller, whether the recorded destination information in the list is recorded as the information of the send-source of the response based on a query;
• and
• resend, by the first controller, data to a destination indicated by the destination information that has not been recorded as the information of the send-source of the response, according to an instruction from the second controller based on the determination,
• wherein in a case where the predetermined amount of time has not elapsed on the timer, the determination by the second controller is not performed.