turings-tarpit/corotest.cpp

#include "coro.hpp"
#include <coroutine>
#include <vector>
#include <iostream>

Task<unsigned> task_test()
{
  co_await std::suspend_always{};

  for (unsigned i = 0; i < 3; ++i)
      co_yield i;

  co_return 1000;
}

int main()
{

  const int task_count = 4;
  vector<Task<unsigned>> tasks;

  for(int i = 0; i < task_count; i++) {
    auto t = task_test();
    tasks.push_back(std::move(t));
  }

  int done_count = 0;
  while(done_count < task_count) {
    for(int i = 0; i < task_count; i++) {
      Task<unsigned> &t = tasks[i];

      if(t.done()) {
        // remove it from the tasks
        // this cause crash I think?
        t.destroy();
        done_count++;
      } else {
        auto res = t();

        if(t.state() == AWAIT) {
          cout << "AWAIT! " << t.state() << endl;
        } else if(t.state() != YIELD) {
          cout << "NOT YIELD: " << t.state() << endl;
        } else {
          cout << "T# " << i << " result "
           << res << " STATE " << t.state() << endl;
        }
      }
    }
  }
}