IPC?
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For communication between 2 processes, Parent and child as well.
Types of IPC
| Method | Communication | Synchronization |
|---|---|---|
| 1. Pipe, Rust Channels | Parent to child viceversa | Yes |
| 2.Named pipes, fifo | Multiple process can communicate. Process-1 to process-2 | |
| 3.Message Queues |
Multiprocess. Process-1 to process-2 Rust: v_queue, posixmq, Channels are also sort of Message Queues |
Yes |
| 4.Shared Memory | Multiprocess. Process-1 to process-2. Fastest | No |
| 5.Memory mapped files |
Map a file onto process Virtual address space and do RW. Advantages? 1. Mapping a file is cheaper than using I/O system calls for RW 2. Same file can be mapped to 2-or-more processes at same time. Write by 1 is visible to other instantly. |