SERVICE SYSTEM FOR SERVER PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a service system for server process, which doesn't omit services requested from a client process. SOLUTION: When substitution of an existing server process 11 is requested, a new server process 12 is generated, and the server process 12 describes 'service transfer request' in a shared memory to transmit a signal to the server process 11 when completing preparations for services and waits for a response from the server process 11 after signal transmission. The server process 11 transmits a signal and vanishes by itself after completing services being in the middle of processing. The server process 12 refers to the shared memory when receiving the signal and finds the service transfer response to release the shared memory and starts monitoring all ports 31 to 3n of a port group 3 to provide services.