puai_dispatch/dispatch/dispatch_device_base.cpp

//
// Created by huli on 2021/3/3.
//

#include "dispatch_device_base.h"

Dispatch_device_base::Dispatch_device_base()
{
	m_dispatch_device_status = E_UNKNOW;
	m_device_id = -1;

	mp_execute_thread = NULL;
}

Dispatch_device_base::~Dispatch_device_base()
{
	dispatch_device_base_uninit();
}

//设备 初始化
Error_manager Dispatch_device_base::dispatch_device_base_init(int device_id)
{
	m_device_id = device_id;
	//	线程默认开启
	m_execute_condition.reset(false, true, false);
	mp_execute_thread = new std::thread(&Dispatch_device_base::execute_thread_fun, this);

	m_dispatch_device_status = E_READY;
	return Error_code::SUCCESS;
}
//设备 反初始化
Error_manager Dispatch_device_base::dispatch_device_base_uninit()
{
	if (mp_execute_thread)
	{
		m_execute_condition.kill_all();
	}
	if (mp_execute_thread)
	{
		mp_execute_thread->join();
		delete mp_execute_thread;
		mp_execute_thread = NULL;
	}

	m_dispatch_device_status = E_UNKNOW;

	return Error_code::SUCCESS;
}

//执行任务
Error_manager Dispatch_device_base::execute_task(std::shared_ptr<Task_Base> p_task, Dispatch_task_level dispatch_task_level)
{
	LOG(INFO) << " ---Dispatch_device_base::execute_task ---"<< this;

	Error_manager t_error;
	Error_manager t_result;

	//检查指针
	if (p_task.get() == NULL) {
		return Error_manager(Error_code::POINTER_IS_NULL, Error_level::MINOR_ERROR,
							 "Dispatch_device_base::execute_task failed, POINTER_IS_NULL");
	}
	//检查任务类型，
	t_error = check_task_type(p_task);
	if ( t_error != Error_code::SUCCESS )
	{
		return t_error;
	}

	//检查接收方能否接受任务
	t_error = check_task_level(dispatch_task_level);
	if ( t_error != SUCCESS )
	{
		t_result.compare_and_cover_error(t_error);
	}
	else
	{
		//接受任务，并将任务的状态改为TASK_SIGNED已签收
		t_error = sign_for_task(p_task, dispatch_task_level);
		if ( t_error != Error_code::SUCCESS )
		{
			return t_error;
		}
		//这里不用检查任务内容, 直接下发给底层设备
		//永远启动到三级任务工作状态.
		// 启动定位管理模块，的核心工作线程
		m_dispatch_device_status = E_THREE_LEVEL_WORK;
		m_execute_condition.notify_all(true);
		//通知 thread_work 子线程启动。

		//只签收,并不一定进入工作状态, 在线程真正的执行的时候,才改为工作中, (执行线程可能会先处理更高优先级的任务单)
	}

	if ( t_result != Error_code::SUCCESS )
	{
		return t_result;
	}

	return Error_code::SUCCESS;
}

//检查任务类型, 子类必须重载, 用来检查输入的任务是否为子类所需的.
Error_manager Dispatch_device_base::check_task_type(std::shared_ptr<Task_Base> p_task)
{
	//检查任务类型，
//	if (p_task->get_task_type() != CARRIER_TASK)
//	{
//		return Error_manager(Error_code::CARRIER_TASK_TYPE_ERROR, Error_level::MINOR_ERROR,
//							 "Dispatch_device_base::execute_one_level_task  get_task_type() != CARRIER_TASK ");
//	}

	return Error_code::SUCCESS;
}

//判断能否执行任务
Error_manager Dispatch_device_base::check_task_level(Dispatch_task_level dispatch_task_level)
{
	std::cout << " huli test :::: " << " m_dispatch_device_status = " << m_dispatch_device_status << std::endl;
	//加锁
	std::unique_lock<std::mutex> t_lock(m_lock);
	//只有当状态 不是正在执行当前等级的任务,并且当前等级的任务为空. 此时返回成功, 才能接受新的任务
	if ( m_dispatch_device_status >= E_READY && m_dispatch_device_status <= E_THREE_LEVEL_WORK )
	{
		switch ( dispatch_task_level )
		{
			case E_ONE_LEVEL:
			{
				if ( ( m_dispatch_device_status == E_READY ) && mp_device_one_level_task.get() == NULL)
				{
				    return Error_code::SUCCESS;
				}
				break;
			}
			case E_TWO_LEVEL:
			{
				if ( ( m_dispatch_device_status == E_READY ||
					 m_dispatch_device_status == E_ONE_LEVEL_WORK ||
					 m_dispatch_device_status == E_ONE_LEVEL_OVER ) && mp_device_two_level_task.get() == NULL)
				{
					return Error_code::SUCCESS;
				}
				break;
			}
			case E_THREE_LEVEL:
			{
				if ( ( m_dispatch_device_status == E_READY ||
					 m_dispatch_device_status == E_ONE_LEVEL_OVER ) && mp_device_three_level_task.get() == NULL)
				{
					return Error_code::SUCCESS;
				}
				break;
			}
			default:
			{
				return Error_manager(Error_code::PARAMETER_ERROR, Error_level::MINOR_ERROR,
									 "  Dispatch_device_base::check_task PARAMETER_ERROR ");
				break;
			}
		}
		return Error_manager(Error_code::DISPATCH_DEVICE_STATUS_BUSY, Error_level::NEGLIGIBLE_ERROR,
							 " Dispatch_device_base::check_task is busy ");
	}
	else
	{
	    return Error_manager(Error_code::DISPATCH_DEVICE_STATUS_ERROR, Error_level::MINOR_ERROR,
	    					" Dispatch_device_base::check_task error ");
	}
	return Error_code::SUCCESS;
}

//签收任务
Error_manager Dispatch_device_base::sign_for_task(std::shared_ptr<Task_Base> p_task, Dispatch_task_level dispatch_task_level)
{
	//加锁
	std::unique_lock<std::mutex> t_lock(m_lock);
	switch ( dispatch_task_level )
	{
		case E_ONE_LEVEL:
		{
			mp_device_one_level_task = p_task;
			mp_device_one_level_task->set_task_statu(TASK_SIGNED);
			break;
		}
		case E_TWO_LEVEL:
		{
			mp_device_two_level_task = p_task;
			mp_device_two_level_task->set_task_statu(TASK_SIGNED);
			break;
		}
		case E_THREE_LEVEL:
		{
			mp_device_three_level_task = p_task;
			mp_device_three_level_task->set_task_statu(TASK_SIGNED);
			break;
		}
		default:
		{
			return Error_manager(Error_code::PARAMETER_ERROR, Error_level::MINOR_ERROR,
								 "  Dispatch_device_base::check_task PARAMETER_ERROR ");
			break;
		}
	}
	return Error_code::SUCCESS;
}

//检查状态,是否正常运行. (工作状态 和 是否能接受对应的任务无关)
Error_manager Dispatch_device_base::check_status()
{
	if ( m_dispatch_device_status == E_READY )
	{
		return Error_code::SUCCESS;
	}
	else if ( m_dispatch_device_status >= E_BUSY && m_dispatch_device_status <= E_THREE_LEVEL_WORK)
	{
		return Error_manager(Error_code::DISPATCH_DEVICE_STATUS_BUSY, Error_level::NEGLIGIBLE_ERROR,
							 " Dispatch_device_base::check_status is busy ");
	}
	else
	{
		return Error_manager(Error_code::DISPATCH_DEVICE_STATUS_ERROR, Error_level::MINOR_ERROR,
							 " Dispatch_device_base::check_status error ");
	}
	return Error_code::SUCCESS;
}

//判断是否为待机，如果已经准备好，则可以执行任务。
bool Dispatch_device_base::is_ready()
{
	return (m_dispatch_device_status == E_READY);
}


//结束任务单，里面会根据任务的故障等级修正 任务单的状态
Error_manager Dispatch_device_base::end_task(std::shared_ptr<Task_Base> p_task)
{
	LOG(INFO) << " ---Dispatch_device_base::end_task ---"<< this;
	std::unique_lock<std::mutex> t_lock(m_lock);
	//注:这里只修改任务单的状态, 搬运器的状态不管
	//在结束任务单时，将雷达任务状态改为 TASK_OVER 已结束
	//判断任务单的错误等级，
	if ( p_task->get_task_error_manager().get_error_level() < Error_level::MINOR_ERROR)
	{
		//强制改为TASK_OVER，不管它当前在做什么。
		p_task->set_task_statu(TASK_OVER);
	}
	else
	{
		//强制改为 TASK_ERROR，不管它当前在做什么。
		p_task->set_task_statu(TASK_ERROR);
	}
	return Error_code::SUCCESS;
}

//取消任务单，由发送方提前取消任务单
Error_manager Dispatch_device_base::cancel_task(std::shared_ptr<Task_Base> p_task, Dispatch_task_level dispatch_task_level)
{
	//找到对应的任务单
	switch ( dispatch_task_level )
	{
		case E_ONE_LEVEL:
		{
			if ( m_dispatch_device_status == E_ONE_LEVEL_WORK || m_dispatch_device_status == E_ONE_LEVEL_OVER )
			{
				//如果正在执行一级任务, 那么取消当前指令, 然后降级
				m_execute_condition.notify_all(false);
				//确保内部线程已经停下
				while (m_execute_condition.is_working())
				{

				}
				cancel_command();
				{
					std::unique_lock<std::mutex> t_lock(m_lock);
					mp_device_one_level_task.reset();
					m_dispatch_device_status = E_READY;
				}

				m_execute_condition.notify_all(true);
			}
			else
			{
				std::unique_lock<std::mutex> t_lock(m_lock);
				//否则直接销毁任务单
				mp_device_one_level_task.reset();
			}
			break;
		}
		case E_TWO_LEVEL:
		{
			if ( m_dispatch_device_status == E_TWO_LEVEL_WORK || m_dispatch_device_status == E_TWO_LEVEL_OVER )
			{
				//如果正在执行一级任务, 那么取消当前指令, 然后降级
				m_execute_condition.notify_all(false);
				//确保内部线程已经停下
				while (m_execute_condition.is_working())
				{

				}
				cancel_command();
				{
					std::unique_lock<std::mutex> t_lock(m_lock);
					mp_device_two_level_task.reset();
					m_dispatch_device_status = E_ONE_LEVEL_WORK;
				}
				m_execute_condition.notify_all(true);
			}
			else
			{
				std::unique_lock<std::mutex> t_lock(m_lock);
				//否则直接销毁任务单
				mp_device_one_level_task.reset();
			}
			break;
		}
		case E_THREE_LEVEL:
		{
			if ( m_dispatch_device_status == E_THREE_LEVEL_WORK || m_dispatch_device_status == E_THREE_LEVEL_OVER )
			{
				//如果正在执行一级任务, 那么取消当前指令, 然后降级
				m_execute_condition.notify_all(false);
				//确保内部线程已经停下
				while (m_execute_condition.is_working())
				{

				}
				cancel_command();
				{
					std::unique_lock<std::mutex> t_lock(m_lock);
					mp_device_three_level_task.reset();
					m_dispatch_device_status = E_TWO_LEVEL_WORK;
				}
				m_execute_condition.notify_all(true);
			}
			else
			{
				std::unique_lock<std::mutex> t_lock(m_lock);
				//否则直接销毁任务单
				mp_device_one_level_task.reset();
			}
			break;
		}
		default:
		{
			return Error_manager(Error_code::PARAMETER_ERROR, Error_level::MINOR_ERROR,
								 "  Dispatch_device_base::cancel_task PARAMETER_ERROR ");
			break;
		}
	}
	//上级的任务单指针,改为死亡,表示任务已经失效.
	p_task->set_task_statu(TASK_DEAD);
	return Error_code::SUCCESS;
}

Dispatch_device_base::Dispatch_device_status Dispatch_device_base::get_dispatch_device_status()
{
	return m_dispatch_device_status;
}

//获取硬件设备的状态, 必须子类继承
Dispatch_device_base::Device_status Dispatch_device_base::get_actual_device_status()
{
	return DEVICE_UNKNOWN;
}

//执行外界任务的执行函数
void Dispatch_device_base::execute_thread_fun()
{
	LOG(INFO) << " Dispatch_device_base::execute_thread_fun() start " << this;

	Error_manager t_error;

	while (m_execute_condition.is_alive())
	{
		m_execute_condition.wait();
		if ( m_execute_condition.is_alive() )
		{
			std::this_thread::sleep_for(std::chrono::microseconds(1));
			std::this_thread::sleep_for(std::chrono::seconds(1));

			std::this_thread::yield();

			std::cout << " huli test :::: " << "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa m_dispatch_device_status = " << m_dispatch_device_status << std::endl;
			switch ( (Dispatch_device_status)m_dispatch_device_status )
			{
				//核心任务, (三级任务)
				case E_THREE_LEVEL_WORK:
				{
					if ( mp_device_three_level_task.get() != NULL )
					{
						mp_device_three_level_task->set_task_statu(TASK_WORKING);
						//执行三级任务
						write_task_to_memory(mp_device_three_level_task);
						//更新通信
						update_device_communication();
						//从内存中读数据到任务单
						t_error = check_and_read_memory_to_task(mp_device_three_level_task);

						if (t_error == NODATA)
						{
							//设备正常运行
							//延时1ms, snap7的通信效率偏慢, 不需要高频率检查
							std::this_thread::sleep_for(std::chrono::milliseconds(1));
						}
						else
						{
							if (t_error != SUCCESS)
							{
								mp_device_three_level_task->set_task_error_manager(t_error);
							}
							end_task(mp_device_three_level_task);
							m_dispatch_device_status = E_THREE_LEVEL_OVER;
						}
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_TWO_LEVEL_WORK;
					}
					break;
				}
				case E_THREE_LEVEL_OVER:
				{
					//更新通信
					update_device_communication();
					if ( mp_device_three_level_task.get() != NULL )
					{
						//检查任务状态,
						//在 E_THREE_LEVEL_WORK 里面, 已经 设为 TASK_OVER 了.
						//等待发送方的新指令, (发送方会把状态改为回收, 表示这个任务结束)
						if ( mp_device_three_level_task->get_task_statu() == TASK_WITHDRAW )
						{
							//这里会通知任务已经释放, 然后销毁任务单,  并降级
							mp_device_three_level_task->set_task_statu(TASK_FREE);
							mp_device_three_level_task.reset();
							m_dispatch_device_status = E_TWO_LEVEL_WORK;
						}
							//任务单重新创建, 调度创建的新的任务,那么回去继续工作
						else if (  mp_device_three_level_task->get_task_statu() == TASK_CREATED )
						{
							mp_device_three_level_task->set_task_statu(TASK_SIGNED);
							m_dispatch_device_status = E_THREE_LEVEL_WORK;
						}
						//else //保持不动, 直到发送方给定新的任务,
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_TWO_LEVEL_WORK;
					}
					break;
				}
				case E_TWO_LEVEL_WORK:
				{
					if ( mp_device_two_level_task.get() != NULL )
					{
						mp_device_two_level_task->set_task_statu(TASK_WORKING);
						//执行二级任务
						write_task_to_memory(mp_device_two_level_task);
						//更新通信
						update_device_communication();
						//从内存中读数据到任务单
						t_error = check_and_read_memory_to_task(mp_device_two_level_task);

						if (t_error == NODATA)
						{
							//设备正常运行
							//延时1ms, snap7的通信效率偏慢, 不需要高频率检查
							std::this_thread::sleep_for(std::chrono::milliseconds(1));
						}
						else
						{
							if (t_error != SUCCESS)
							{
								mp_device_two_level_task->set_task_error_manager(t_error);
							}
							end_task(mp_device_two_level_task);
							m_dispatch_device_status = E_TWO_LEVEL_OVER;
						}
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_ONE_LEVEL_WORK;
					}
					break;
				}
				case E_TWO_LEVEL_OVER:
				{
					//更新通信
					update_device_communication();
					if ( mp_device_two_level_task.get() != NULL )
					{
						//检查任务状态,
						//在 E_TWO_LEVEL_WORK 里面, 已经 设为 TASK_OVER 了.
						//等待发送方的新指令, (发送方会把状态改为回收, 表示这个任务结束)
						if ( mp_device_two_level_task->get_task_statu() == TASK_WITHDRAW )
						{
							//这里会通知任务已经释放, 然后销毁任务单,  并降级
							mp_device_two_level_task->set_task_statu(TASK_FREE);
							mp_device_two_level_task.reset();
							m_dispatch_device_status = E_ONE_LEVEL_WORK;
						}
							//任务单重新创建, 调度创建的新的任务,那么回去继续工作
						else if (  mp_device_two_level_task->get_task_statu() == TASK_CREATED )
						{
							mp_device_two_level_task->set_task_statu(TASK_SIGNED);
							m_dispatch_device_status = E_TWO_LEVEL_WORK;
						}
						//else //保持不动, 直到发送方给定新的任务,
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_ONE_LEVEL_WORK;
					}
					break;
				}
				case E_ONE_LEVEL_WORK:
				{
					if ( mp_device_one_level_task.get() != NULL )
					{
						mp_device_one_level_task->set_task_statu(TASK_WORKING);
						//执行一级任务,
						write_task_to_memory(mp_device_one_level_task);
						//更新通信
						update_device_communication();
						//从内存中读数据到任务单
						t_error = check_and_read_memory_to_task(mp_device_one_level_task);

						if ( t_error == NODATA )
						{
							//设备正常运行
							//延时1ms, snap7的通信效率偏慢, 不需要高频率检查
							std::this_thread::sleep_for(std::chrono::milliseconds(1));
						}
						else
						{
							if ( t_error != SUCCESS )
							{
								mp_device_one_level_task->set_task_error_manager(t_error);
							}
							end_task(mp_device_one_level_task);
							m_dispatch_device_status = E_ONE_LEVEL_OVER;
						}
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_READY;
					}
					break;
				}
				case E_ONE_LEVEL_OVER:
				{
					//更新通信
					update_device_communication();
					if ( mp_device_one_level_task.get() != NULL )
					{
						//检查任务状态,
						//在 E_ONE_LEVEL_WORK 里面, 已经 设为 TASK_OVER 了.
						//等待发送方的新指令, (发送方会把状态改为回收, 表示这个任务结束)
						if ( mp_device_one_level_task->get_task_statu() == TASK_WITHDRAW )
						{
							//这里会通知任务已经释放, 然后销毁任务单,  并降级
							mp_device_one_level_task->set_task_statu(TASK_FREE);
							mp_device_one_level_task.reset();
							m_dispatch_device_status = E_READY;
						}
							//任务单重新创建, 调度创建的新的任务,那么回去继续工作
						else if (  mp_device_one_level_task->get_task_statu() == TASK_CREATED )
						{
							mp_device_one_level_task->set_task_statu(TASK_SIGNED);
							m_dispatch_device_status = E_ONE_LEVEL_WORK;
						}
						//else //保持不动, 直到发送方给定新的任务,
					}
					else
					{
						//直接降级
						m_dispatch_device_status = E_READY;
					}
					break;
				}
				case E_FAULT:
				{
					//更新通信
					update_device_communication();

					//所有任务报错, 并销毁任务.
					if ( mp_device_one_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_ERROR, MINOR_ERROR, "m_respons_status is error");
						mp_device_one_level_task->set_task_error_manager(t_error);
						end_task(mp_device_one_level_task);
						mp_device_one_level_task.reset();
					}
					if ( mp_device_two_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_ERROR, MINOR_ERROR, "m_respons_status is error");
						mp_device_two_level_task->set_task_error_manager(t_error);
						end_task(mp_device_two_level_task);
						mp_device_two_level_task.reset();
					}
					if ( mp_device_three_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_ERROR, MINOR_ERROR, "m_respons_status is error");
						mp_device_three_level_task->set_task_error_manager(t_error);
						end_task(mp_device_three_level_task);
						mp_device_three_level_task.reset();
					}


					break;
				}
				case E_DISCONNECT:
				{
					//更新通信
					update_device_communication();
					//所有任务报错, 并销毁任务.
					if ( mp_device_one_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_DISCONNECT, MINOR_ERROR, "m_respons_status is error");
						mp_device_one_level_task->set_task_error_manager(t_error);
						end_task(mp_device_one_level_task);
						mp_device_one_level_task.reset();
					}
					if ( mp_device_two_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_DISCONNECT, MINOR_ERROR, "m_respons_status is error");
						mp_device_two_level_task->set_task_error_manager(t_error);
						end_task(mp_device_two_level_task);
						mp_device_two_level_task.reset();
					}
					if ( mp_device_three_level_task.get() != NULL )
					{
						//添加错误码
						Error_manager t_error(DISPATCH_DEVICE_STATUS_DISCONNECT, MINOR_ERROR, "m_respons_status is error");
						mp_device_three_level_task->set_task_error_manager(t_error);
						end_task(mp_device_three_level_task);
						mp_device_three_level_task.reset();
					}


					break;
				}
				case E_READY:
				{
					//更新通信
					update_device_communication();
					break;
				}
				default:
				{

					break;
				}
			}
		}
	}

	LOG(INFO) << " Dispatch_device_base::execute_thread_fun() end "<< this;
	return;
}

//执行线程工作函数, 正在执行任务单.
Error_manager Dispatch_device_base::execute_thread_working(std::shared_ptr<Task_Base> p_task, Dispatch_device_status & device_status)
{
	return Error_code::SUCCESS;
}
//执行线程工作函数, 已经完成任务单. 等待新的指令
Error_manager Dispatch_device_base::execute_thread_over(std::shared_ptr<Task_Base> p_task, Dispatch_device_status & device_status)
{
	return Error_code::SUCCESS;
}

//把任务单写入到内存中, 子类必须重载
Error_manager Dispatch_device_base::write_task_to_memory(std::shared_ptr<Task_Base> p_task)
{
	return Error_code::SUCCESS;
}
//更新设备底层通信数据, 子类必须重载
Error_manager Dispatch_device_base::update_device_communication()
{
	return Error_code::SUCCESS;
}
//从内存中读数据到任务单, 子类必须重载
Error_manager Dispatch_device_base::check_and_read_memory_to_task(std::shared_ptr<Task_Base> p_task)
{
	return Error_code::SUCCESS;
}





//取消下发的指令
Error_manager Dispatch_device_base::cancel_command()
{
	//以后再写 need programe
	//目前调度和plc的通信指令做的很简单,没有暂停和急停 复位等操作.
	//这里先空着,以后再写.
	//调度模块单方面销毁任务, 不管底层plc的执行情况, 也不去告知plc任务取消.

	return Error_code::SUCCESS;
}