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Message-Slot-Kernel-Module

Description

This repository contains a kernel module that provides a new inter-process communication (IPC) mechanism called a message slot. A message slot is a character device file through which processes can communicate. Each message slot device can have multiple message channels active concurrently, allowing multiple processes to use it. The module supports setting a channel ID using ioctl(), and sending/receiving messages using write() and read() system calls.

Usage

  1. Compile the kernel module: 
    make
  2. Load the kernel module: 
    sudo insmod message_slot.ko
  3. Create a message slot device file: 
    sudo mknod /dev/slot0 c 235 0
sudo chmod 666 /dev/slot0

Example Session

  1. Load the kernel module: 
    sudo insmod message_slot.ko
  2. Create a message slot file: 
    sudo mknod /dev/slot0 c 235 0
sudo chmod 666 /dev/slot0
  3. Send a message: 
    ./message_sender /dev/slot0 1 "Hello, World!"
  4. Read the message: 
    ./message_reader /dev/slot0 1
Hello, World!