MULTITHREAD PROCESSING DEVICE, MULTITHREAD PROCESSING SYSTEM, AND COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN MULTITHREAD PROCESSING PROGRAM

Provided is a multithread processing device that includes a managing unit that assigns a free thread among a plurality of threads to at least one of a plurality of processes, and a processing unit that executes the one process to which the free thread is assigned by the managing unit, wherein, when a request is transmitted from a first process among the plurality of processes by the processing unit, the managing unit releases a thread assigned to the first process to be a free thread, and ends the first process, and when a response to the request is received by the processing unit, the managing unit assigns a free thread to a second process of executing a process related to the response among the plurality of processes.