Inter Process Communication_Mechanisms.pptx

Inter Process Communication_Mechanisms in operating systems Unit-3

1. Interprocess Communication (IPC) Mechanisms Pipes, FIFOs, Message Queues, and Shared Memory in C

2. What is IPC? - IPC (Interprocess Communication) allows processes to communicate and synchronize execution. - Used for data sharing, event signaling, and process coordination. - Can be between processes on the same system or different systems.

3. IPC Mechanisms: Single vs. Multiple Systems - **IPC within a Single Computer:** - Pipes, FIFOs, Message Queues, Shared Memory - **IPC across Different Systems:** - Sockets, Remote Procedure Calls (RPC), Distributed Message Queues

4. Pipes (Anonymous Pipes) - Pipes provide unidirectional communication between processes. - Typically used between parent and child processes.

5. FIFOs (Named Pipes) - Named pipes allow unrelated processes to communicate. - Data flows in FIFO (First-In, First-Out) order.

6. Message Queues - Message queues allow processes to send structured messages. - Supports priority-based message delivery.

7. Shared Memory - Shared memory allows multiple processes to access common data. - Fastest IPC mechanism as data is shared directly in memory.

8. Conclusion - IPC mechanisms enable process communication efficiently. - Different IPC methods suit different needs (performance, complexity, security). - Shared memory is the fastest, while message queues provide structured communication.