Code Explainers

Code explainers tagged #atomicity

php 
<?php
 
namespace App\Storage;
 

A race-free file counter in PHP

file-locking concurrency atomicity
Intermediate 7 steps
php 
<?php
 
namespace App\RateLimiting;
 

Sliding-window rate limiting with Redis sorted sets

rate-limiting redis sorted-sets
Advanced 8 steps
rust 
use axum::{extract::State, http::StatusCode, Json};
use serde::{Deserialize, Serialize};
use sqlx::PgPool;
use uuid::Uuid;

An atomic money transfer handler in Axum

database-transactions atomicity error-handling
Intermediate 9 steps
php 
<?php
 
final class OrderRepository
{

Atomic order placement with PDO transactions

transactions prepared-statements atomicity
Intermediate 8 steps
java 
@Service
public class OrderCheckoutService {
 
    private final OrderRepository orderRepository;

How @Transactional guards a Spring checkout

dependency-injection transactions atomicity
Intermediate 6 steps
python 
import os
import tempfile
from pathlib import Path
from typing import Union

How atomic file writes work in Python

atomicity filesystem durability
Advanced 7 steps
ruby 
class ThreadSafeCounter
  def initialize(initial = 0)
    @count = initial
    @mutex = Mutex.new

A thread-safe counter with Mutex in Ruby

concurrency mutex thread-safety
Intermediate 6 steps