105 lines
3.1 KiB
C#
105 lines
3.1 KiB
C#
using System;
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using Modbus.Device;
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using System.Net.Sockets;
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namespace 全自动水压检测仪.Data
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{
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// 单例模式：全局唯一资源管理器
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public class ModbusResourceManager
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{
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// 私有构造函数：禁止外部new
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private ModbusResourceManager() { }
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// 唯一实例
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private static readonly Lazy<ModbusResourceManager> _instance = new Lazy<ModbusResourceManager>(() => new ModbusResourceManager());
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public static ModbusResourceManager Instance => _instance.Value;
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// 共享资源
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public TcpClient TcpClient { get; private set; }
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public IModbusMaster ModbusMaster { get; private set; }
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// 初始化资源（在程序启动时调用，如MainWindow加载时）
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public bool Init(string ip, int port)
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{
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try
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{
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// 先释放旧资源
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ReleaseResource();
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// 创建新连接
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TcpClient = new TcpClient();
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TcpClient.Connect(ip, port);
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ModbusMaster = ModbusIpMaster.CreateIp(TcpClient);
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return true;
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}
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catch (Exception ex)
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{
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Console.WriteLine($"资源初始化失败：{ex.Message}");
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ReleaseResource();
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return false;
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}
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}
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public void Dispose()
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{
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ReleaseResource();
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}
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// 释放资源（统一释放，避免重复关闭）
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public void ReleaseResource()
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{
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try
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{
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// 先释放 ModbusMaster
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if (ModbusMaster != null)
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{
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try
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{
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ModbusMaster.Dispose();
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}
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catch (Exception ex)
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{
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Console.WriteLine($"释放ModbusMaster失败：{ex.Message}");
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}
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finally
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{
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ModbusMaster = null;
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}
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}
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// 再释放 TcpClient
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if (TcpClient != null)
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{
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try
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{
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if (TcpClient.Connected)
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{
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TcpClient.Close();
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"关闭TcpClient失败：{ex.Message}");
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}
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try
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{
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TcpClient.Dispose();
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}
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catch (Exception ex)
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{
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Console.WriteLine($"释放TcpClient失败：{ex.Message}");
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}
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finally
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{
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TcpClient = null;
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}
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"资源释放异常：{ex.Message}");
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}
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}
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}
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} |