如何配置VScode来调试GG多线程应用程序(如winpdb中的)？

Question

我如何配置VScode来像在winpdb中那样调试这个多线程应用程序(我们可以在调用堆栈中看到不同的客户端线程)？

是否可以看到我的主线程执行(我们在线程中，变量，.)，以及线程执行(同样的事情在同一时间，并且独立地使用调试器控制台执行线程)？

from socket import *
from fib import fib
from threading import Thread
from concurrent.futures import ProcessPoolExecutor as Pool

pool = Pool(4)

def fib_server(address):
    sock = socket(AF_INET, SOCK_STREAM)
    sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
    sock.bind(address)
    sock.listen(5)
    while True:
        client, addr = sock.accept()
        print("Connection", addr)
        Thread(target=fib_handler, args=(client,), daemon=True).start()

def fib_handler(client):
    while True:
        req = client.recv(100)
        if not req:
            break
        n = int(req)
        future = pool.submit(fib, n)
        result = future.result()
        resp = str(result).encode('ascii') + b'\n'
        client.send(resp)
    print("Closed")

fib_server(('',25000))

Answer 1

我们可以使用断点进行多线程调试.

我用一个简单的例子向您展示了如何做到这一点：

from threading import Thread
from multiprocessing import Process
import time


def print_num(num):
    while 1:
        time.sleep(1)
        print(num)


def multithread_func():
    num = 2
    a = [
        num,
    ]
    thread = Thread(target=print_num, args=(a,))
    thread.start()
    while 1:
        time.sleep(1)
        a[0] = a[0] + 1


def another_process(num):
    while 1:
        time.sleep(1)
        print(f"I'm the second, num is {num}.")


if __name__ == "__main__":
    from multiprocessing import Process

    process = [
        Process(target=multithread_func),
        Process(target=another_process, args=(2,)),
    ]
    [p.start() for p in process]
    [p.join() for p in process]

我们可以在time.sleep (1)之前添加断点：

​

​

然后，在使用调试函数时，可以查看每个线程的状态，包括变量和左侧控制线程的按钮。

​

​