Concurrent programming--process pool and thread pool

Phase 1: Implementing Reusable Threads

Effect demonstration:

Stage 2: Simple Implementation of Thread Pool

1. The concept of pool:

2. Implementation code:

3. Effect demonstration:

Stage 3: Python comes with its own pool

 1. Built-in thread pool

2. Built-in process pool

3. Other operations

result:

Stage 4: Using Pools to Implement Concurrent Servers

1. Use thread pool implementation

2. Use process pool implementation