c++ builder 线程池 任务绑定函数

//在前面发布的文章中，有一篇描述线程池，从Task派生出一个类，需要实现虚函数Exec()。

//那么本篇呢，定义Task类型的变量，它的pWorkExec成员需要绑定一个函数。

//我们还要定义一个线程类

//主画面上第二个按钮是创建线程。

//TMyTest.h

#ifndef TMyTestH
#define TMyTestH
 #include "visSimpleThreadPool.h"
//---------------------------------------------------------------------------
class TMyTest : public TThread
{
protected:
        void __fastcall Execute();
        void RunTask_test(TWork *pWork );
public:
        __fastcall TMyTest(bool CreateSuspended);
};

extern TMyTest *MyTest ;
#endif

//-----------------------------------------------------------------------------------------------------------

//TMyTest.cpp

//---------------------------------------------------------------------------

#pragma hdrstop

#include "TMyTest.h"
#include "FormMain.h"
#include "visSimpleThreadPool.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
TMyTest *MyTest;
TWork  MyWork[2];
void TMyTest::RunTask_test (TWork *pWork )
{
       char str[100];
      for (int i = 0; i < 100; i++)
      {   sprintf(str,"RunTask_test%dn",i);
          OutputDebugStringA(str);
      }

}
void __fastcall TMyTest::Execute()
{
      for (int i = 0; i < 2; i++)
      MyWork[i].SetWorkIsEnd() ;
     while(!Terminated)
     {
         for (int i = 0; i < 2; i++)
         {   if ( MyWork[i].WorkIsEnd())
             {
               MyWork[i].TagIndex = i ;
               MyWork[i].pWorkExec =RunTask_test ;//绑定函数
               MyWork[i].WorkEnd = false ;//有这行，只跑一次
               g_pThreadWorkList->AddWork(&MyWork[0]);
             }

         }

     }
}
__fastcall TMyTest:: TMyTest(bool CreateSuspended): TThread(CreateSuspended)
{

}
//

//--------------------------------------------------------------------------------

//主画面FormMain.cpp

//---------------------------------------------------------------------------

#include
#pragma hdrstop
 #include "visSimpleThreadPool.h"

#include "FormMain.h"
#include "TMyTest.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
class Work1;
TForm7 *Form7;

Work1 *pwork1;
class Work1:public TWork
{  public:

  void Exec()
  {   char str[100];
      for (int i = 0; i < 100; i++)
      {   sprintf(str,"%dn",i);
          OutputDebugStringA(str);
      }
  }
};

//---------------------------------------------------------------------------
__fastcall TForm7::TForm7(TComponent* Owner)
    : TForm(Owner)
{

}

//---------------------------------------------------------------------------
void __fastcall TForm7::FormCreate(TObject *Sender)
{
   pwork1=new Work1;
   g_pThreadWorkList = new TThreadWorkList(10);

}
//---------------------------------------------------------------------------
void __fastcall TForm7::FormClose(TObject *Sender, TCloseAction &Action)
{
      if(g_pThreadWorkList)
    {
              delete g_pThreadWorkList;
    }
     delete pwork1;
      if (MyTest)  delete MyTest;
}
//---------------------------------------------------------------------------
void __fastcall TForm7::Button1Click(TObject *Sender)
{

      g_pThreadWorkList->AddWork(pwork1);

}
//---------------------------------------------------------------------------

void __fastcall TForm7::Button2Click(TObject *Sender)
{
   MyTest=new TMyTest(false);
}