C #: Simple Threading sample

1. Define thread classes and internal events

usingSystem;usingSystem.Collections.Generic;usingSystem.Text;usingSystem.Threading;usingSystem.Windows.Forms;namespacethreadsample{ Public Delegate voidThreadeventhandler (Objectsender, EventArgs e);  Public classMyThread {//thread execution Start call event         Public EventThreadeventhandler requestevent; //Thread execution End call event         Public EventThreadeventhandler completedevent; //whether to allow the execution of specific tasks in the thread         Public BOOLIsexecute =false; //Thread Name        Private stringThreadName ="Threads";//string. Empty;         Public stringThreadName {Get{returnThreadName;} }         Public voidStart () {Try            {                //invoke event before executionRequestevent ( This,NULL); if(isexecute) {//Perform TasksRandom seed =NewRandom (DateTime.Now.Millisecond); intSleeptime = seed. Next ( -, -);                Thread.Sleep (Sleeptime); } threadname+=Thread.CurrentThread.ManagedThreadId.ToString (); //invoke event after executionCompletedevent ( This,NULL); }            Catch(Exception ex) {//Logging error log trace files            }        }    }}

View Code

2. Thread is called externally and thread event content is added, and its monitor is implemented synchronously

usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Threading;namespacethreadsample{ Public Partial classFrmapp:form { PublicFrmapp () {InitializeComponent (); }        Private voidBtnexit_click (Objectsender, EventArgs e) {Environment.exit (0); }        Private voidBtnrun_click (Objectsender, EventArgs e) {            Try            {                intThreadCount =Ten;  This. Tbmonitor.clear ();//displaying information for monitoring threadsmythread[] Threadarray =NewMythread[threadcount]; Thread TD=NULL;  for(inti =0; i < ThreadCount; i++) {Threadarray[i]=NewMyThread (); Threadarray[i]. Requestevent+=frmapp_requestevent; Threadarray[i]. Completedevent+=frmapp_completedevent; TD=NewThread (Threadarray[i].                    Start); Td.                Start (); }            }            Catch(Exception CE) {MessageBox.Show (CE).            ToString ()); }        }        //Log Thread Information        Private Delegate voidRecordseventhandler (Objectsender, EventArgs e); //display information on a per-thread-call method        Private voidFrmapp_completedevent (Objectsender, EventArgs e)//sender is too broad, can give exact name (MyThread)        {            if( This. tbmonitor.invokerequired) {                 This. Tbmonitor.invoke (NewRecordseventhandler (Frmapp_completedevent),New Object[] {sender, E}); }            Else            {                Try{Monitor.Enter ( This. Tbmonitor);//synchronization mechanism, specifying an object to get an exclusive lock//Specific Operation                     This. Tbmonitor.text + = (sender asMyThread). ThreadName +"--- ---"+ DateTime.Now.ToString ("YYYY-MM-DD HH:mm:ss.fffff") +Environment.NewLine; }                Catch(Exception ex) {MessageBox.Show (ex).                    ToString ()); //Logging error log trace files                }                finally{monitor.exit ( This. Tbmonitor);//synchronization mechanism, specifying object release exclusive lock                }            }        }        Private voidFrmapp_requestevent (Objectsender, EventArgs e) {            //whether to allow the execution of specific tasks in the thread(Sender asMyThread). Isexecute =true; }    }}

View Code

Note: The monitor implements whether the synchronized object must call the Invoke () method.

C #: Simple Threading sample