Design and Realization of Multi-Thread Structure for an LLRP Server

This paper presents multi-thread structure for an LLRP server. To design the structure, (i) the requirements for an LLRP server are deduced; (ii) threads are divided to satisfy the requirements; (iii) the operation procedure of an LLRP system is investigated at the thread level; and (iv) the function of each thread and interaction among threads are specified. Then to validate the designed structure, first the design structure is modeled by using the DEVS formalism which specifies discrete event systems, and then it is validated by simulating the DEVS model. Finally, the structure is realized to a C++ program. To maximally utilize the validation result, the program is built on the basis of the simulation code. The test input sequences used during the validation process are also applied to the realized program. From the test result, we can confirm that the proposed structure satisfies the specified requirements.