レビュー: 競合状態とスレッド安全性

1import threading
2 
3class Counter:
4    """Simple counter class"""
5    
6    def __init__(self):
7        self.count = 0
8    
9    def increment(self):
10        """Increment counter by 1"""
11        self.count += 1
12    
13    def decrement(self):
14        """Decrement counter by 1"""
15        if self.count > 0:
16            self.count -= 1
17    
18    def get_count(self):
19        """Get current count"""
20        return self.count
21    
22    def add(self, value):
23        """Add value to counter"""
24        current = self.count
25        self.count = current + value