INTER-PROCESS COMMUNICATION SYSTEM IN COMPUTER SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent the generation of a congestion state, and to prevent the delay of a message even at the time of temporarily receiving a plurality of message transmission requests from a plurality of user processes. SOLUTION: In this system, shared memories 111 and 112 for writing messages, and pipes 121 and 122 with names for recording the leading addresses of the messages written in the shared memories 111 and 112 as message identifiers, and semaphores 131 and 132 for operating exclusive control to the shared memories 111 and 112 according to the increase and decrease of semaphore values are provided among respective processes 101-103.