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RIOT/tests/cpp11_thread/main.cpp 3.59 KB
a752c7ab   elopes   add first test an...
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  /*
   * Copyright (C) 2015 Hamburg University of Applied Sciences (HAW)
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  /**
   * @ingroup tests
   * @{
   *
   * @file
   * @brief test thread replacement header
   *
   * @author Raphael Hiesgen <raphael.hiesgen@haw-hamburg.de>
   *
   * @}
   */
  
  #include <string>
  #include <cstdio>
  #include <cassert>
  #include <system_error>
  
  #include "riot/mutex.hpp"
  #include "riot/chrono.hpp"
  #include "riot/thread.hpp"
  #include "riot/condition_variable.hpp"
  
  using namespace std;
  using namespace riot;
  
  /* http://en.cppreference.com/w/cpp/thread/thread */
  int main() {
    puts("\n************ C++ thread test ***********");
  
    assert(sched_num_threads == 2); // main + idle
  
    puts("Creating one thread and passing an argument ...");
    {
      constexpr int i = 3;
      thread t([=](const int j) { assert(j == i); }, i);
      try {
        t.join();
      }
      catch (const std::system_error& e) {
        assert(false);
      }
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Creating detached thread ...");
    {
      thread t([] {
        // nop
      });
      assert(t.joinable() == 1);
      t.detach();
      assert(t.joinable() == 0);
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Join on 'finished' thread ...");
    {
      thread t;
      assert(t.joinable() == 0);
      t = thread([] {
        // nop
      });
      assert(t.joinable() == 1);
      try {
        t.join();
      }
      catch (const std::system_error& e) {
        assert(false);
      }
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Join on 'running' thread ...");
    {
      mutex m;
      thread t1, t2;
      condition_variable cv;
      assert(t1.joinable() == 0);
      assert(t2.joinable() == 0);
      t1 = thread([&m, &cv] {
        unique_lock<mutex> lk(m);
        cv.wait(lk);
      });
      assert(t1.joinable() == 1);
      t2 = thread([&t1] {
        try {
          t1.join();
        }
        catch (const std::system_error& e) {
          assert(false);
        }
      });
      assert(t2.joinable() == 1);
      cv.notify_one();
      try {
        t2.join();
      }
      catch (const std::system_error& e) {
        assert(false);
      }
      assert(t1.joinable() == 0);
      assert(t2.joinable() == 0);
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Testing sleep_for ...");
    {
      timex_t before, after;
      xtimer_now_timex(&before);
      this_thread::sleep_for(chrono::seconds(1));
      xtimer_now_timex(&after);
      auto diff = timex_sub(after, before);
      assert(diff.seconds >= 1);
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Testing sleep_until ...");
    {
      timex_t before, after;
      xtimer_now_timex(&before);
      this_thread::sleep_until(riot::now() += chrono::seconds(1));
      xtimer_now_timex(&after);
      auto diff = timex_sub(after, before);
      assert(diff.seconds >= 1);
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Swapping two threads ...");
    {
      thread t1([] {
        // nop
      });
      thread t2([] {
        // nop
      });
      auto t1_old = t1.get_id();
      auto t2_old = t2.get_id();
      t1.swap(t2);
      assert(t1_old == t2.get_id());
      assert(t2_old == t1.get_id());
      t1.join();
      t2.join();
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Move constructor ...");
    {
      thread t1([] {
        // nop
      });
      thread t2(move(t1));
      assert(t1.joinable() == 0);
      assert(t2.joinable() == 1);
      t2.join();
    }
    puts("Done\n");
  
    assert(sched_num_threads == 2);
  
    puts("Bye, bye.");
    puts("******************************************");
  
    return 0;
  }