我正在学习C++20，并尝试练习std::latch
但是我的例子不太好用，你能帮我调试一下这个代码吗？
我的程序在调用taskDone.wait()函数时被阻塞

#include <chrono>
#include <iostream>
#include <thread>
#include <latch>
using namespace std::chrono_literals;
std::latch  latch{ 3 };
std::latch taskDone{ 1 };
void worker_f(int this_id)
{
    if (latch.try_wait())
    {
        std::printf("worker %d comes late, full slot ... waiting for the task done\n", this_id);
        taskDone.wait();
        std::printf("task done, worker %d exit\n", this_id);
    }
    else
    {
        std::printf("worker %d comes on time, there is a task for him\n", this_id);
        latch.count_down();
    }
    std::this_thread::sleep_for(100ms);
}
    
int main()
{
    for (int i = 0; i < 5; ++i)
    {
        std::jthread ac{ worker_f, i };
    }
    std::cout << "hello" << std::endl;
    std::printf("waiting for worker\n");
    latch.wait();
    std::printf("full slot, doing task\n");
    taskDone.count_down();
    
    std::printf("task done\n");
    std::this_thread::sleep_for(1000ms);
}

字符串
输出：

worker 0 comes on time, there is a task for him
worker 1 comes on time, there is a task for him
worker 2 comes on time, there is a task for him
worker 3 comes late, full slot ... waiting for the task done

型
非常感谢您的帮助！