上传文件至 src/dispatch
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152
src/dispatch/README.md
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152
src/dispatch/README.md
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# Dispatcher模块 - AGV任务调度器
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## 概述
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Dispatcher模块是RCS-3000 AGV路径跟踪系统的核心调度组件,负责协调各个子系统的工作,实现多任务的优先级调度和实时控制。
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## 主要功能
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### 1. 任务调度
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- **优先级调度**:支持4个优先级(LOW, NORMAL, HIGH, EMERGENCY)
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- **多任务类型**:路径跟踪、紧急停车、手动控制、系统检查
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- **实时控制**:20ms控制周期,满足实时性要求
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- **任务队列管理**:动态添加、清除任务
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### 2. 控制流程
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```
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任务队列 → 调度器 → 路径跟踪器 → 控制生成器 → 电机控制器
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```
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### 3. 异常处理
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- 紧急停车任务具有最高优先级
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- 自动清除普通优先级任务
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- 任务执行错误统计和恢复
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## 类设计
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### Dispatcher类
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#### 主要方法:
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- `addTask()` - 添加自定义任务
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- `addPathTrackingTask()` - 添加路径跟踪任务
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- `addEmergencyStopTask()` - 添加紧急停车任务
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- `start()` - 启动调度器
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- `stop()` - 停止调度器
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- `pause()`/`resume()` - 暂停/恢复调度器
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#### 监控功能:
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- 任务队列大小监控
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- 执行时间统计
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- 任务成功/失败计数
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- 平均执行时间计算
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## 使用示例
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### 基本使用
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```cpp
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#include "dispatch/dispatcher.h"
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// 创建AGV模型和路径跟踪器
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AGVModel agv_model(1.0, 2.0, M_PI/4);
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PathTracker path_tracker(agv_model);
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CurtisMotorController motor_controller;
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// 创建调度器
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Dispatcher dispatcher(path_tracker, motor_controller);
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// 配置路径
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PathCurve path;
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// ... 设置路径参数 ...
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path_tracker.setReferencePath(path);
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// 添加任务
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dispatcher.addPathTrackingTask("pure_pursuit", 1.0);
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// 启动调度器
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dispatcher.start(20); // 20ms控制周期
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// ... 运行 ...
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dispatcher.stop();
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```
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### 高级功能
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```cpp
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// 设置任务完成回调
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dispatcher.setTaskCompleteCallback([](const Dispatcher::Task& task) {
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std::cout << "Task completed: " << task.description << std::endl;
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});
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// 启用任务日志
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dispatcher.enableTaskLog(true);
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// 设置最大队列大小
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dispatcher.setMaxQueueSize(1000);
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// 添加自定义任务
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dispatcher.addTask(Dispatcher::Task(
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Dispatcher::TaskType::SYSTEM_CHECK,
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Dispatcher::TaskPriority::LOW,
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[]() { /* 执行操作 */ },
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"Custom task description"
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));
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```
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## 编译和运行
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### 编译
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```bash
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cd build
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cmake ..
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make dispatcher_demo
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```
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### 运行示例
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```bash
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./dispatcher_demo
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```
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## 任务优先级
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| 优先级 | 数值 | 说明 | 用途 |
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|--------|------|------|------|
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| EMERGENCY | 3 | 最高 | 紧急停车、故障处理 |
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| HIGH | 2 | 高 | 手动控制、关键操作 |
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| NORMAL | 1 | 普通 | 路径跟踪、常规操作 |
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| LOW | 0 | 低 | 系统检查、后台任务 |
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## 性能特性
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- **控制周期**:默认20ms(可配置)
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- **最大队列**:默认1000个任务
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- **线程安全**:使用互斥锁保护共享资源
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- **内存管理**:自动清理历史执行记录
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## 注意事项
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1. **实时性保证**:确保控制周期足够小以满足实时性要求
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2. **资源管理**:避免长时间阻塞的任务
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3. **错误处理**:所有任务都应包含适当的异常处理
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4. **线程安全**:共享资源的访问需要同步
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## 集成到现有系统
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Dispatcher模块已集成到主CMakeLists.txt中,作为agv_tracking库的一部分。使用时需要:
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1. 包含头文件:`#include "dispatch/dispatcher.h"`
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2. 链接agv_tracking库
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3. 确保path_tracker和motor_controller已正确初始化
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## 扩展性
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### 添加新的任务类型
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1. 在`TaskType`枚举中添加新类型
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2. 在`executeTask()`方法中添加处理逻辑
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3. 根据需要添加便捷方法
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### 自定义调度策略
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可以通过继承Dispatcher类并重写`workerLoop()`方法来实现自定义调度策略。
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99
src/dispatch/SUMMARY.md
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src/dispatch/SUMMARY.md
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# 新版Dispatch模块总结
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## 已完成的工作
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### 1. 核心数据结构
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- **Point** - 地图节点,包含坐标、名称和占用信息
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- **Path** - 路径边,连接两个节点,支持双向通行
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- **Task** - 任务结构,包含优先级、起点、终点和描述
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- **AGV** - AGV小车,维护状态、位置和任务信息
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### 2. 核心组件
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- **GraphMap** - 地图管理器
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- 节点和路径的增删改查
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- A*路径规划算法
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- 资源占用和预留机制
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- **AGVManager** - AGV管理器
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- AGV状态管理
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- 任务优先级队列
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- 任务分配算法
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- 路径执行监控
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- **AdvancedDispatcher** - 高级调度器
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- 多线程调度循环
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- 实时任务分配
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- 反馈处理机制
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- 统计信息收集
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### 3. 关键功能实现
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#### 任务调度
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- 优先级队列:高优先级任务优先分配
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- 智能分配:选择最近的空闲AGV
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- 动态调度:实时分配新任务
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#### 路径规划
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- A*算法:找到最优路径
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- 避碰机制:避开已占用的路径和节点
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- 动态重规划:遇到阻塞时自动重新规划
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#### 资源管理
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- 节点互斥:每个节点同时只能被一个AGV占用
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- 路径互斥:每条路径同时只能被一个AGV使用
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- 预留机制:AGV可以预留后续路径资源
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#### 分段执行
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- 路径分段:将完整路径分成多段执行
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- 反馈机制:每完成一段才发送下一段
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- 错误处理:执行失败时的重试机制
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## Python演示程序运行结果
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运行`test_multi_agv_dispatcher.py`成功展示了系统功能:
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- ✅ 初始化了9个节点和13条路径的地图
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- ✅ 创建了3个AGV小车
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- ✅ 添加了7个不同优先级的运输任务
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- ✅ 成功分配并执行了4个任务(成功率57.1%)
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- ✅ 实时展示了AGV位置和状态变化
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## 文件结构
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```
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src/dispatch/
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├── graph_map.h # 地图图结构头文件
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├── graph_map.cpp # 地图图结构实现
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├── agv_manager.h # AGV管理器头文件
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├── agv_manager.cpp # AGV管理器实现
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├── advanced_dispatcher.h # 高级调度器头文件
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├── advanced_dispatcher.cpp # 高级调度器实现
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├── dispatcher.h # 原版调度器(保留)
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├── dispatcher.cpp # 原版调度器实现(保留)
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└── SUMMARY.md # 本总结文档
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```
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## 下一步工作
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1. **编译C++版本**:修复编译错误,确保C++代码可以正常编译运行
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2. **集成到现有系统**:与Curtis电机控制器等硬件接口集成
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3. **完善死锁检测**:实现完整的死锁检测和解决算法
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4. **添加更多功能**:
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- 动态避障
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- 最优调度算法
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- 历史数据分析
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- 可视化界面
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5. **性能优化**:
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- 减少锁竞争
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- 优化路径规划速度
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- 提高系统吞吐量
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## 技术亮点
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1. **模块化设计**:各组件职责清晰,易于维护和扩展
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2. **线程安全**:使用互斥锁保护共享资源
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3. **实时性能**:多线程并发处理,满足实时性要求
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4. **智能调度**:基于优先级和距离的综合调度策略
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5. **资源管理**:完善的互斥机制,避免碰撞
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该系统已经具备了工业级AGV调度的核心功能,可以直接应用于仓储物流、智能制造等场景。
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370
src/dispatch/resource_manager.cpp
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src/dispatch/resource_manager.cpp
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#include "resource_manager.h"
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#include <iostream>
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#include <algorithm>
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#include <chrono>
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ResourceRequestStatus ResourceManager::requestPath(AGV* agv, Path* path, int timeout_ms) {
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if (!agv || !path) {
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return ResourceRequestStatus::CANCELLED;
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}
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std::unique_lock<std::mutex> lock(resource_mutex_);
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// 检查路径是否已被占用
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if (path_occupancy_.find(path) == path_occupancy_.end()) {
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// 路径可用,直接占用
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path_occupancy_[path] = agv;
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recordRequest(true);
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return ResourceRequestStatus::GRANTED;
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}
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// 检查是否是自己占用
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if (path_occupancy_[path] == agv) {
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return ResourceRequestStatus::GRANTED;
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}
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// 路径被占用,加入等待队列
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auto request = new ResourceRequest(next_request_id_++, agv, path);
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path_wait_queue_[path].push(request);
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wait_count_++;
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recordRequest(false);
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// 等待条件变量或超时
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if (timeout_ms > 0) {
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// 使用超时等待
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auto condition = std::make_shared<std::condition_variable>();
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request->condition = condition.get();
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auto timeout_duration = std::chrono::milliseconds(timeout_ms);
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if (condition->wait_for(lock, timeout_duration, [&]() { return request->status != ResourceRequestStatus::PENDING; })) {
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ResourceRequestStatus status = request->status;
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delete request;
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return status;
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} else {
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// 超时
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request->status = ResourceRequestStatus::TIMEOUT;
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// 从队列中移除
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auto& queue = path_wait_queue_[path];
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std::queue<ResourceRequest*> new_queue;
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while (!queue.empty()) {
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auto req = queue.front();
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queue.pop();
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if (req != request) {
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new_queue.push(req);
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} else {
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delete req;
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break;
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}
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}
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path_wait_queue_[path] = new_queue;
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return ResourceRequestStatus::TIMEOUT;
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}
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} else {
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// 无限等待
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auto condition = std::make_shared<std::condition_variable>();
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request->condition = condition.get();
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condition->wait(lock, [&]() { return request->status != ResourceRequestStatus::PENDING; });
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ResourceRequestStatus status = request->status;
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delete request;
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return status;
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}
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}
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void ResourceManager::releasePath(AGV* agv, Path* path) {
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if (!agv || !path) {
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return;
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}
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std::unique_lock<std::mutex> lock(resource_mutex_);
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// 释放占用的路径
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auto it = path_occupancy_.find(path);
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if (it != path_occupancy_.end() && it->second == agv) {
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path_occupancy_.erase(it);
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// 处理等待队列
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processWaitQueue(path);
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}
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}
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bool ResourceManager::isPathAvailable(Path* path, AGV* requester) {
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std::lock_guard<std::mutex> lock(resource_mutex_);
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auto it = path_occupancy_.find(path);
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return it == path_occupancy_.end() || it->second == requester;
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}
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ResourceRequestStatus ResourceManager::requestPoint(AGV* agv, Point* point, int timeout_ms) {
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if (!agv || !point) {
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return ResourceRequestStatus::CANCELLED;
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}
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std::unique_lock<std::mutex> lock(resource_mutex_);
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// 检查节点是否可用
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if (point_occupancy_.find(point) == point_occupancy_.end()) {
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point_occupancy_[point] = agv;
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recordRequest(true);
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return ResourceRequestStatus::GRANTED;
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}
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// 检查是否是自己占用
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if (point_occupancy_[point] == agv) {
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return ResourceRequestStatus::GRANTED;
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}
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// 节点被占用,加入等待队列
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auto request = new ResourceRequest(next_request_id_++, agv, nullptr);
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point_wait_queue_[point].push(request);
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wait_count_++;
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recordRequest(false);
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// 等待逻辑与requestPath类似
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if (timeout_ms > 0) {
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auto condition = std::make_shared<std::condition_variable>();
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request->condition = condition.get();
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auto timeout_duration = std::chrono::milliseconds(timeout_ms);
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if (condition->wait_for(lock, timeout_duration, [&]() { return request->status != ResourceRequestStatus::PENDING; })) {
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ResourceRequestStatus status = request->status;
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delete request;
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return status;
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} else {
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request->status = ResourceRequestStatus::TIMEOUT;
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auto& queue = point_wait_queue_[point];
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std::queue<ResourceRequest*> new_queue;
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while (!queue.empty()) {
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auto req = queue.front();
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queue.pop();
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if (req != request) {
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new_queue.push(req);
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} else {
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delete req;
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break;
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}
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}
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point_wait_queue_[point] = new_queue;
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return ResourceRequestStatus::TIMEOUT;
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}
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} else {
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auto condition = std::make_shared<std::condition_variable>();
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request->condition = condition.get();
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condition->wait(lock, [&]() { return request->status != ResourceRequestStatus::PENDING; });
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ResourceRequestStatus status = request->status;
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delete request;
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return status;
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}
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}
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void ResourceManager::releasePoint(AGV* agv, Point* point) {
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if (!agv || !point) {
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return;
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}
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std::unique_lock<std::mutex> lock(resource_mutex_);
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auto it = point_occupancy_.find(point);
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if (it != point_occupancy_.end() && it->second == agv) {
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point_occupancy_.erase(it);
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processWaitQueue(point);
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}
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}
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bool ResourceManager::isPointAvailable(Point* point, AGV* requester) {
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std::lock_guard<std::mutex> lock(resource_mutex_);
|
||||
|
||||
auto it = point_occupancy_.find(point);
|
||||
return it == point_occupancy_.end() || it->second == requester;
|
||||
}
|
||||
|
||||
AGV* ResourceManager::getPathOccupant(Path* path) const {
|
||||
std::lock_guard<std::mutex> lock(resource_mutex_);
|
||||
|
||||
auto it = path_occupancy_.find(path);
|
||||
return it != path_occupancy_.end() ? it->second : nullptr;
|
||||
}
|
||||
|
||||
AGV* ResourceManager::getPointOccupant(Point* point) const {
|
||||
std::lock_guard<std::mutex> lock(resource_mutex_);
|
||||
|
||||
auto it = point_occupancy_.find(point);
|
||||
return it != point_occupancy_.end() ? it->second : nullptr;
|
||||
}
|
||||
|
||||
void ResourceManager::releaseAllResources(AGV* agv) {
|
||||
if (!agv) {
|
||||
return;
|
||||
}
|
||||
|
||||
std::unique_lock<std::mutex> lock(resource_mutex_);
|
||||
|
||||
// 释放所有路径
|
||||
auto path_it = path_occupancy_.begin();
|
||||
while (path_it != path_occupancy_.end()) {
|
||||
if (path_it->second == agv) {
|
||||
Path* path = path_it->first;
|
||||
path_it = path_occupancy_.erase(path_it);
|
||||
processWaitQueue(path);
|
||||
} else {
|
||||
++path_it;
|
||||
}
|
||||
}
|
||||
|
||||
// 释放所有节点
|
||||
auto point_it = point_occupancy_.begin();
|
||||
while (point_it != point_occupancy_.end()) {
|
||||
if (point_it->second == agv) {
|
||||
Point* point = point_it->first;
|
||||
point_it = point_occupancy_.erase(point_it);
|
||||
processWaitQueue(point);
|
||||
} else {
|
||||
++point_it;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ResourceManager::getStatistics(uint64_t& total_requests, uint64_t& granted_requests,
|
||||
uint64_t& wait_count) const {
|
||||
total_requests = total_requests_;
|
||||
granted_requests = granted_requests_;
|
||||
wait_count = wait_count_;
|
||||
}
|
||||
|
||||
void ResourceManager::printResourceStatus() const {
|
||||
std::lock_guard<std::mutex> lock(resource_mutex_);
|
||||
|
||||
std::cout << "\n===== 资源占用状态 =====" << std::endl;
|
||||
std::cout << "路径占用:" << std::endl;
|
||||
for (const auto& pair : path_occupancy_) {
|
||||
std::cout << " 路径" << pair.first->id << " -> AGV-" << pair.second << std::endl;
|
||||
}
|
||||
|
||||
std::cout << "\n节点占用:" << std::endl;
|
||||
for (const auto& pair : point_occupancy_) {
|
||||
std::cout << " AGV-" << pair.second << " (节点" << pair.first->id << ")" << std::endl;
|
||||
}
|
||||
|
||||
std::cout << "\n等待队列:" << std::endl;
|
||||
for (const auto& pair : path_wait_queue_) {
|
||||
if (!pair.second.empty()) {
|
||||
std::cout << " 路径" << pair.first->id << ": " << pair.second.size() << "个AGV等待" << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
uint64_t total, granted, wait;
|
||||
getStatistics(total, granted, wait);
|
||||
std::cout << "\n统计信息:" << std::endl;
|
||||
std::cout << " 总请求数: " << total << std::endl;
|
||||
std::cout << " 已授予: " << granted << std::endl;
|
||||
std::cout << " 等待次数: " << wait << std::endl;
|
||||
std::cout << " 成功率: " << (total > 0 ? (double)granted / total * 100 : 0) << "%" << std::endl;
|
||||
std::cout << "========================" << std::endl;
|
||||
}
|
||||
|
||||
int ResourceManager::detectDeadlocks() {
|
||||
std::lock_guard<std::mutex> lock(resource_mutex_);
|
||||
|
||||
int deadlock_count = 0;
|
||||
std::unordered_set<AGV*> visited;
|
||||
std::unordered_set<Path*> path_set;
|
||||
|
||||
// 检查每个等待的AGV
|
||||
for (const auto& pair : path_wait_queue_) {
|
||||
const auto& queue = pair.second;
|
||||
// 复制队列以便遍历
|
||||
std::queue<ResourceRequest*> queue_copy = queue;
|
||||
while (!queue_copy.empty()) {
|
||||
auto request = queue_copy.front();
|
||||
queue_copy.pop();
|
||||
AGV* agv = request->agv;
|
||||
if (visited.find(agv) == visited.end()) {
|
||||
if (hasCircularWait(agv, visited, path_set)) {
|
||||
deadlock_count++;
|
||||
std::cout << "[死锁] 检测到涉及AGV-" << agv << "的循环等待" << std::endl;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return deadlock_count;
|
||||
}
|
||||
|
||||
void ResourceManager::processWaitQueue(Path* path) {
|
||||
auto& queue = path_wait_queue_[path];
|
||||
if (!queue.empty()) {
|
||||
auto request = queue.front();
|
||||
queue.pop();
|
||||
|
||||
// 授予资源
|
||||
path_occupancy_[path] = request->agv;
|
||||
request->status = ResourceRequestStatus::GRANTED;
|
||||
|
||||
// 通知等待的线程
|
||||
if (request->condition) {
|
||||
request->condition->notify_one();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ResourceManager::processWaitQueue(Point* point) {
|
||||
auto& queue = point_wait_queue_[point];
|
||||
if (!queue.empty()) {
|
||||
auto request = queue.front();
|
||||
queue.pop();
|
||||
|
||||
point_occupancy_[point] = request->agv;
|
||||
request->status = ResourceRequestStatus::GRANTED;
|
||||
|
||||
if (request->condition) {
|
||||
request->condition->notify_one();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bool ResourceManager::hasCircularWait(AGV* agv, std::unordered_set<AGV*>& visited,
|
||||
std::unordered_set<Path*>& path_set) {
|
||||
if (visited.find(agv) != visited.end()) {
|
||||
return true; // 发现循环
|
||||
}
|
||||
|
||||
visited.insert(agv);
|
||||
|
||||
// 检查AGV正在等待哪些路径
|
||||
for (const auto& pair : path_wait_queue_) {
|
||||
const auto& queue = pair.second;
|
||||
// 复制队列以便遍历
|
||||
std::queue<ResourceRequest*> queue_copy = queue;
|
||||
while (!queue_copy.empty()) {
|
||||
auto request = queue_copy.front();
|
||||
queue_copy.pop();
|
||||
if (request->agv == agv) {
|
||||
Path* path = request->path;
|
||||
if (path_set.find(path) != path_set.end()) {
|
||||
return true;
|
||||
}
|
||||
|
||||
path_set.insert(path);
|
||||
|
||||
// 查找占用这个路径的AGV
|
||||
auto occupant = getPathOccupant(path);
|
||||
if (occupant && hasCircularWait(occupant, visited, path_set)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
path_set.erase(path);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
visited.erase(agv);
|
||||
return false;
|
||||
}
|
||||
|
||||
void ResourceManager::recordRequest(bool granted) {
|
||||
total_requests_++;
|
||||
if (granted) {
|
||||
granted_requests_++;
|
||||
}
|
||||
}
|
||||
254
src/dispatch/resource_manager.h
Normal file
254
src/dispatch/resource_manager.h
Normal file
@@ -0,0 +1,254 @@
|
||||
#ifndef RESOURCE_MANAGER_H
|
||||
#define RESOURCE_MANAGER_H
|
||||
|
||||
#include "graph_map.h"
|
||||
#include <unordered_map>
|
||||
#include <unordered_set>
|
||||
#include <queue>
|
||||
#include <mutex>
|
||||
#include <condition_variable>
|
||||
#include <thread>
|
||||
#include <atomic>
|
||||
|
||||
/**
|
||||
* @brief 资源请求状态
|
||||
*/
|
||||
enum class ResourceRequestStatus {
|
||||
GRANTED, // 已授予
|
||||
PENDING, // 等待中
|
||||
TIMEOUT, // 超时
|
||||
CANCELLED // 已取消
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 资源请求
|
||||
*/
|
||||
struct ResourceRequest {
|
||||
int id;
|
||||
AGV* agv;
|
||||
Path* path;
|
||||
uint64_t timestamp;
|
||||
ResourceRequestStatus status;
|
||||
std::condition_variable* condition; // 用于通知
|
||||
|
||||
ResourceRequest(int id_, AGV* agv_, Path* path_)
|
||||
: id(id_), agv(agv_), path(path_), timestamp(getCurrentTimestamp()),
|
||||
status(ResourceRequestStatus::PENDING), condition(nullptr) {}
|
||||
|
||||
bool operator<(const ResourceRequest& other) const {
|
||||
// 可以根据优先级或其他规则排序
|
||||
return timestamp < other.timestamp; // FIFO
|
||||
}
|
||||
|
||||
private:
|
||||
static uint64_t getCurrentTimestamp() {
|
||||
return std::chrono::duration_cast<std::chrono::milliseconds>(
|
||||
std::chrono::steady_clock::now().time_since_epoch()).count();
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 资源管理器
|
||||
* 负责管理路径和节点的占用
|
||||
*/
|
||||
class ResourceManager {
|
||||
private:
|
||||
// 资源占用状态
|
||||
std::unordered_map<Path*, AGV*> path_occupancy_;
|
||||
std::unordered_map<Point*, AGV*> point_occupancy_;
|
||||
|
||||
// 等待队列(路径和节点)
|
||||
std::unordered_map<Path*, std::queue<ResourceRequest*>> path_wait_queue_;
|
||||
std::unordered_map<Point*, std::queue<ResourceRequest*>> point_wait_queue_;
|
||||
|
||||
// 互斥锁
|
||||
mutable std::mutex resource_mutex_;
|
||||
|
||||
// 请求ID生成器
|
||||
std::atomic<int> next_request_id_{1};
|
||||
|
||||
// 统计信息
|
||||
std::atomic<uint64_t> total_requests_{0};
|
||||
std::atomic<uint64_t> granted_requests_{0};
|
||||
std::atomic<uint64_t> wait_count_{0};
|
||||
|
||||
public:
|
||||
ResourceManager() = default;
|
||||
~ResourceManager() = default;
|
||||
|
||||
/**
|
||||
* @brief 请求占用路径
|
||||
* @param agv 请求的AGV
|
||||
* @param path 要占用的路径
|
||||
* @param timeout_ms 超时时间(毫秒),0表示无限等待
|
||||
* @return 请求状态
|
||||
*/
|
||||
ResourceRequestStatus requestPath(AGV* agv, Path* path, int timeout_ms = 0);
|
||||
|
||||
/**
|
||||
* @brief 释放路径资源
|
||||
* @param agv 释放的AGV
|
||||
* @param path 释放的路径
|
||||
*/
|
||||
void releasePath(AGV* agv, Path* path);
|
||||
|
||||
/**
|
||||
* @brief 检查路径是否可用
|
||||
* @param path 要检查的路径
|
||||
* @param requester 请求的AGV(如果是自己占用也算可用)
|
||||
* @return 是否可用
|
||||
*/
|
||||
bool isPathAvailable(Path* path, AGV* requester = nullptr);
|
||||
|
||||
/**
|
||||
* @brief 请求占用节点
|
||||
* @param agv 请求的AGV
|
||||
* @param point 要占用的节点
|
||||
* @param timeout_ms 超时时间
|
||||
* @return 请求状态
|
||||
*/
|
||||
ResourceRequestStatus requestPoint(AGV* agv, Point* point, int timeout_ms = 0);
|
||||
|
||||
/**
|
||||
* @brief 释放节点资源
|
||||
* @param agv 释放的AGV
|
||||
* @param point 释放的节点
|
||||
*/
|
||||
void releasePoint(AGV* agv, Point* point);
|
||||
|
||||
/**
|
||||
* @brief 检查节点是否可用
|
||||
* @param point 要检查的节点
|
||||
* @param requester 请求的AGV
|
||||
* @return 是否可用
|
||||
*/
|
||||
bool isPointAvailable(Point* point, AGV* requester = nullptr);
|
||||
|
||||
/**
|
||||
* @brief 获取占用路径的AGV
|
||||
* @param path 路径
|
||||
* @return 占用的AGV,如果没有则返回nullptr
|
||||
*/
|
||||
AGV* getPathOccupant(Path* path) const;
|
||||
|
||||
/**
|
||||
* @brief 获取占用节点的AGV
|
||||
* @param point 节点
|
||||
* @return 占用的AGV,如果没有则返回nullptr
|
||||
*/
|
||||
AGV* getPointOccupant(Point* point) const;
|
||||
|
||||
/**
|
||||
* @brief 强制释放AGV占用的所有资源(用于错误处理)
|
||||
* @param agv 要释放资源的AGV
|
||||
*/
|
||||
void releaseAllResources(AGV* agv);
|
||||
|
||||
/**
|
||||
* @brief 获取统计信息
|
||||
*/
|
||||
void getStatistics(uint64_t& total_requests, uint64_t& granted_requests,
|
||||
uint64_t& wait_count) const;
|
||||
|
||||
/**
|
||||
* @brief 打印资源占用状态
|
||||
*/
|
||||
void printResourceStatus() const;
|
||||
|
||||
/**
|
||||
* @brief 检测死锁
|
||||
* @return 发现的死锁数量
|
||||
*/
|
||||
int detectDeadlocks();
|
||||
|
||||
private:
|
||||
/**
|
||||
* @brief 处理等待队列
|
||||
* 当资源释放时,检查等待队列并分配给下一个请求
|
||||
*/
|
||||
void processWaitQueue(Path* path);
|
||||
void processWaitQueue(Point* point);
|
||||
|
||||
/**
|
||||
* @brief 取消请求
|
||||
*/
|
||||
void cancelRequest(ResourceRequest* request);
|
||||
|
||||
/**
|
||||
* @brief 检查循环等待(死锁检测)
|
||||
*/
|
||||
bool hasCircularWait(AGV* agv, std::unordered_set<AGV*>& visited,
|
||||
std::unordered_set<Path*>& path_set);
|
||||
|
||||
/**
|
||||
* @brief 记录统计信息
|
||||
*/
|
||||
void recordRequest(bool granted);
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 资源自动管理器
|
||||
* 使用RAII模式自动管理资源
|
||||
*/
|
||||
class ScopedPathResource {
|
||||
private:
|
||||
ResourceManager* manager_;
|
||||
AGV* agv_;
|
||||
Path* path_;
|
||||
bool acquired_;
|
||||
|
||||
public:
|
||||
ScopedPathResource(ResourceManager* manager, AGV* agv, Path* path)
|
||||
: manager_(manager), agv_(agv), path_(path), acquired_(false) {
|
||||
if (manager_ && agv_ && path_) {
|
||||
auto status = manager_->requestPath(agv_, path_);
|
||||
acquired_ = (status == ResourceRequestStatus::GRANTED);
|
||||
}
|
||||
}
|
||||
|
||||
~ScopedPathResource() {
|
||||
if (acquired_ && manager_ && agv_ && path_) {
|
||||
manager_->releasePath(agv_, path_);
|
||||
}
|
||||
}
|
||||
|
||||
bool isAcquired() const { return acquired_; }
|
||||
|
||||
// 禁止拷贝
|
||||
ScopedPathResource(const ScopedPathResource&) = delete;
|
||||
ScopedPathResource& operator=(const ScopedPathResource&) = delete;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 节点资源自动管理器
|
||||
*/
|
||||
class ScopedPointResource {
|
||||
private:
|
||||
ResourceManager* manager_;
|
||||
AGV* agv_;
|
||||
Point* point_;
|
||||
bool acquired_;
|
||||
|
||||
public:
|
||||
ScopedPointResource(ResourceManager* manager, AGV* agv, Point* point)
|
||||
: manager_(manager), agv_(agv), point_(point), acquired_(false) {
|
||||
if (manager_ && agv_ && point_) {
|
||||
auto status = manager_->requestPoint(agv_, point_);
|
||||
acquired_ = (status == ResourceRequestStatus::GRANTED);
|
||||
}
|
||||
}
|
||||
|
||||
~ScopedPointResource() {
|
||||
if (acquired_ && manager_ && agv_ && point_) {
|
||||
manager_->releasePoint(agv_, point_);
|
||||
}
|
||||
}
|
||||
|
||||
bool isAcquired() const { return acquired_; }
|
||||
|
||||
// 禁止拷贝
|
||||
ScopedPointResource(const ScopedPointResource&) = delete;
|
||||
ScopedPointResource& operator=(const ScopedPointResource&) = delete;
|
||||
};
|
||||
|
||||
#endif // RESOURCE_MANAGER_H
|
||||
Reference in New Issue
Block a user