Examples of IPC Systems in Operating System

Several IPC mechanisms are available for POSIX systems, including shared memory and message passing. Here, we explore the POSIX API for shared memory

POSIX shared memory is organized using memory-mapped files, which associate the region of shared memory with a file. A process must first create

message next consumed;
while (true) {
receive(next consumed);
/* consume the item in next consumed */

a shared-memory object using the shm open() system call, as follows:

shm fd = shm open(name, O CREAT | O RDRW, 0666);

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