You can track the Interprocess Communication (IPC) mechanisms that is used on a system by retrieving one of the following tables from the IPC group:
Provides information about system message queues currently in use.
Class: msgqueEntry
Instance: value of queID attribute for the specific message queue
Provides information about system shared memory segments currently in use.
Class: shmemEntry
Instance: value of shmemID attribute for the specific shared memory segment.
Provides information about system semaphores currently in use. A semaphore is a value in operating system or kernel storage that a process can check and change to coordinate activities in which multiple processes compete for the same operating system resources.
Class: semEntry
Instance: value of semID attribute for the specific semaphore
A row in each of these tables represents one instance of IPC usage. The columns differ for each table.
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