https://github.com/badreddinkaztaoui/fq_minitalk

Minitalk is a small project to create a connection between client and server using UNIX signals.
https://github.com/badreddinkaztaoui/fq_minitalk

bitwise-operators c signals unix

Last synced: 7 days ago
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Minitalk is a small project to create a connection between client and server using UNIX signals.

• Host: GitHub
• URL: https://github.com/badreddinkaztaoui/fq_minitalk
• Owner: badreddinkaztaoui
• Created: 2023-07-10T00:48:29.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2023-11-05T16:23:55.000Z (about 1 year ago)
• Last Synced: 2024-11-10T21:36:01.638Z (2 months ago)
• Topics: bitwise-operators, c, signals, unix
• Language: C
• Homepage:
• Size: 2.93 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Minitalk Project

This project consists of two programs, `server` and `client`, that communicate with each other using signals. The `client` program sends a message to the `server` program by converting characters to their ASCII values and sending them as signals. The `server` program receives the signals and reconstructs the message.

## Files

- `ft_printf`: This directory contains the printf function project.

- `server.c`: This file contains the function responsible for receiving signals and printing the message.

- `client.c`: This file contains the function that sends messages as signals.

- `ft_atoi.c`: This file contains the implementation of the `ft_atoi` function.

- `Makefile`: This file contains the rules for compiling the project.

- `minitalk.h`: This file contains the declarations of functions and any necessary macros.

## Signals

In Unix-like operating systems, signals are software interrupts delivered to a process. They can be used for communication between processes. In this project, we use signals to send messages from the `client` process to the `server` process.

- `SIGUSR1`: This signal is used to represent the binary digit `0`.

- `SIGUSR2`: This signal is used to represent the binary digit `1`.

## Bitwise Operators

Bitwise operators are used to perform operations on individual bits of binary numbers.

- `&` (AND): Performs a bitwise AND operation.

- `|` (OR): Performs a bitwise OR operation.

- `^` (XOR): Performs a bitwise XOR (exclusive OR) operation.

- `~` (NOT): Performs a bitwise NOT operation (flips the bits).

- `<<` (Left Shift): Shifts bits to the left by a specified number of positions.

- `>>` (Right Shift): Shifts bits to the right by a specified number of positions.

These operators are used in the `client` program to convert characters to their ASCII values and send them as individual bits.

## `pause()` Function

The `pause()` function causes the calling process to sleep until a signal is received. It is used in the `server` program to wait for incoming signals.

## Compilation

To compile the project, use the provided `Makefile`:

```bash

make

```

This will generate the server and client executables.

## Usage

Start the server program in one terminal:

```bash

./server

```

In a separate terminal, start the client program and provide the PID of the server process and the text to send as arguments:

```bash

./client [server_pid] [message]

```

Replace [server_pid] with the actual PID of the server process.