c++讀寫文件流實例法式講授。本站提示廣大學習愛好者：（c++讀寫文件流實例法式講授）文章只能為提供參考，不一定能成為您想要的結果。以下是c++讀寫文件流實例法式講授正文
本文實例講述了C#線程履行超時處置與並發線程數掌握的辦法。分享給年夜家供年夜家參考。詳細完成辦法以下：
特殊解釋：
1、為了測試便利，這裡對存儲進程的履行是模仿的
2、這裡限制了並發履行存儲進程的最年夜個數，但並沒有對並發線程數停止掌握，與文章題目略有不符，但法式稍做修改便可掌握並發線程數
代碼以下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OracleClient;
using System.Diagnostics;
using System.IO;
using System.ServiceProcess;
using System.Text;
using System.Threading;
using System.Timers;
using System.Xml;
using DBUtil;
using FQDService.Utils;
namespace FQDService
{
/// <summary>
/// FQD辦事
/// </summary>
partial class FQDService : ServiceBase
{
#region 變量
/// <summary>
/// 存儲進程設置裝備擺設文檔
/// </summary>
public static XmlDocument doc;
/// <summary>
/// 履行存儲進程線程數鎖
/// </summary>
public static Object lockTreadCount = new Object();
/// <summary>
/// 履行存儲進程超不時間
/// </summary>
public static int timeout = 1000;
/// <summary>
/// 期待履行存儲進程時光距離
/// </summary>
public static int interval = 100;
/// <summary>
/// 履行存儲進程最年夜數
/// </summary>
public static int maxRunProcCount = 5;
/// <summary>
/// 履行存儲進程數
/// </summary>
public static int runProcCount = 0;
#endregion
#region 結構函數
public FQDService()
{
InitializeComponent();
}
#endregion
#region 啟動
protected override void OnStart(string[] args)
{
// TODO: 在此處添加代碼以啟動辦事。
doc = XMLHelper.GetXmlDocument();
System.Timers.Timer timer = new System.Timers.Timer(60 * 1000);
timer.Elapsed += new System.Timers.ElapsedEventHandler(RunProc);
timer.Start();
}
#endregion
#region 停止
protected override void OnStop()
{
// TODO: 在此處添加代碼以履行停滯辦事所需的封閉操作。
}
#endregion
#region 履行存儲進程
/// <summary>
/// 履行存儲進程
/// </summary>
public void RunProc(object sender, ElapsedEventArgs e)
{
try
{
Random rnd = new Random();
XmlNode rootNode = doc.SelectSingleNode("settings");
foreach (XmlNode procNode in rootNode.ChildNodes) // 遍歷Proc
{
string procName = procNode.SelectSingleNode("Name").InnerText.Trim();
string runTime = procNode.SelectSingleNode("RunTime").InnerText.Trim();
if (DateTime.Now.ToString("HH:mm") == "14:55")
{
bool finish = false; //存儲進程能否履行終了
Thread thread = null;
thread = new Thread(new ParameterizedThreadStart(delegate(object obj)
{
#region 期待履行存儲進程
lock (lockTreadCount)
{
while (runProcCount >= maxRunProcCount)
{
Thread.Sleep(interval);
}
runProcCount++;
}
#endregion
#region 履行存儲進程超時處置
Thread threadTimer = new Thread(new ParameterizedThreadStart(delegate(object obj2)
{
Thread.Sleep(timeout);
if (finish == false)
{
FileLogger.WriteLog(string.Format("存儲進程{0}履行超時", procName));
if (thread != null)
{
try
{
thread.Abort();
}
catch (Exception ex)
{
FileLogger.WriteErrorLog(string.Format("存儲進程{0}終止線程失足：{1}", procName, ex.Message));
}
}
}
}));
threadTimer.Start();
#endregion
#region 為履行存儲進程預備參數
XmlNodeList paramList = procNode.SelectSingleNode("Params").ChildNodes;
OracleParameter[] oracleParams = new OracleParameter[paramList.Count];
for (int i = 0; i < paramList.Count; i++) // 遍歷param
{
XmlNode paramNode = paramList[i];
string paramName = paramNode.SelectSingleNode("Name").InnerText.Trim();
string paramType = paramNode.SelectSingleNode("Type").InnerText.Trim();
string paramValue = paramNode.SelectSingleNode("Value").InnerText.Trim();
oracleParams[i] = new OracleParameter(paramName, Enum.Parse(typeof(OracleType), paramType));
if ((OracleType)Enum.Parse(typeof(OracleType), paramType) == OracleType.DateTime)
{
DateTime now = DateTime.Now;
string[] paramValueArray = paramValue.Split(':');
oracleParams[i].Value = new DateTime(now.Year, now.Month, now.Day, int.Parse(paramValueArray[0]), int.Parse(paramValueArray[1]), int.Parse(paramValueArray[2]));
}
else
{
oracleParams[i].Value = paramValue;
}
}
#endregion
try
{
try
{
#region 履行存儲進程
FileLogger.WriteLog(string.Format("開端履行存儲進程{0}", procName));
//履行存儲進程
//OracleHelper.RunProcedure(procName, oracleParams);
//模仿履行存儲進程
Thread.Sleep(rnd.Next(100, 1900));
FileLogger.WriteLog(string.Format("存儲進程{0}履行勝利", procName));
finish = true;
#endregion
}
catch (Exception ex)
{
#region 履行存儲進程掉敗日記
StringBuilder sbParams = new StringBuilder();
foreach (OracleParameter oracleParam in oracleParams)
{
sbParams.Append(string.Format("{0}:{1},", oracleParam.ParameterName, oracleParam.Value.ToString()));
}
string strParams = "";
if (sbParams.Length > 0) strParams = sbParams.ToString(0, sbParams.Length - 1);
FileLogger.WriteErrorLog(string.Format("存儲進程履行掉敗{0}({1})：{2}", procName, strParams, ex.Message));
#endregion
}
}
catch
{
//捕捉線程終止異常
}
finally
{
runProcCount--;
}
}));
thread.Start();
}
}
}
catch (Exception ex)
{
FileLogger.WriteErrorLog(ex.Message);
}
}
#endregion
}
}
願望本文所述對年夜家的C#法式設計有所贊助。
