text: /*
   * Copyright (c) 2016-2016, ARM Limited, All Rights Reserved
   * SPDX-License-Identifier: Apache-2.0
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may
   * not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  #include "mbed.h"
  #include "rtos.h"
  #include "greentea-client/test_env.h"
  #include "unity/unity.h"
  #include "utest/utest.h"
  #include "SingletonPtr.h"
  #include <stdio.h>
  
  #ifndef MBED_RTOS_SINGLE_THREAD
    #error [NOT_SUPPORTED] test not supported for single threaded enviroment
  #endif
  
  using namespace utest::v1;
  
  #define TEST_STACK_SIZE     1024
  static uint32_t instance_count = 0;
  
  class TestClass {
  public:
      TestClass() {
          printf("TestClass ctor start\r\n");
          Thread::wait(500);
          instance_count++;
          printf("TestClass ctor end\r\n");
      }
  
      void do_something() {
          printf("Do something called\r\n");
      }
  
      ~TestClass() {
          instance_count--;
      }
  };
  
  static TestClass* get_test_class()
  {
      static TestClass tc;
      return &tc;
  }
  
  static SingletonPtr<TestClass> test_class;
  
  static void main_func_race()
  {
      get_test_class();
  }
  
  static void main_class_race()
  {
      test_class->do_something();
  }
  
  void test_case_func_race()
  {
      printf("Running function race test\r\n");
      Callback<void()> cb(main_func_race);
      Thread *t1 = new Thread(osPriorityNormal, TEST_STACK_SIZE);
      Thread *t2 = new Thread(osPriorityNormal, TEST_STACK_SIZE);
  
      // Start start first thread
      t1->start(cb);
      // Start second thread while the first is inside the constructor
      Thread::wait(250);
      t2->start(cb);
  
      // Wait for the threads to finish
      t1->join();
      t2->join();
  
      delete t1;
      delete t2;
  
      TEST_ASSERT_EQUAL_UINT32(1, instance_count);
  
      // Reset instance count
      instance_count = 0;
  }
  
  void test_case_class_race()
  {
      printf("Running class race test\r\n");
      Callback<void()> cb(main_class_race);
      Thread *t1 = new Thread(osPriorityNormal, TEST_STACK_SIZE);
      Thread *t2 = new Thread(osPriorityNormal, TEST_STACK_SIZE);
  
      // Start start first thread
      t1->start(cb);
      // Start second thread while the first is inside the constructor
      Thread::wait(250);
      t2->start(cb);
  
      // Wait for the threads to finish
      t1->join();
      t2->join();
  
      delete t1;
      delete t2;
  
      TEST_ASSERT_EQUAL_UINT32(1, instance_count);
  
      // Reset instance count
      instance_count = 0;
  }
  
  Case cases[] = {
      Case("function init race", test_case_func_race),
      Case("class init race", test_case_class_race),
  };
  
  utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
  {
      GREENTEA_SETUP(20, "default_auto");
      return greentea_test_setup_handler(number_of_cases);
  }
  
  Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
  
  int main()
  {
      Harness::run(specification);
  }
  