#ifndef _THREADPOOLMODLE_H_
#define _THREADPOOLMODLE_H_
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/**//*===========================================================================
@ File: threadpoolmodle.h
@ Date: 2006/3/13
@ Author: zhao.xj
@ Version: 1.0.0
@ description: 本类实现了一个简单的线程池,需要用的可以继承本类,实现函数run,来
完成自己的特殊工作
=============================================================================*/
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#include <assert.h>
#include <process.h>
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class ThreadPoolModle
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{
friend unsigned int _stdcall ThreadProc(void* lpParam);
bool isPoolEnded;
int m_nNum;
HANDLE* m_pthreads;
HANDLE killAllThreads;
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private:
ThreadPoolModle(const ThreadPoolModle& threadModle);
ThreadPoolModle& operator = (const ThreadPoolModle& threadModle);
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protected:
void* m_thrdPara; //线程参数
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//线程处理的函数,使用线程池的类继承并实现它
virtual unsigned int Run() = 0;
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//在线程函数中必须检查这个函数,以判断是否停止线程
bool CheckThrExit();
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public:
//默认是只要一个线程的对象
ThreadPoolModle(int num = 1)
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{
assert(num >= 1);
m_nNum = num;
m_pthreads = new HANDLE[m_nNum];
m_thrdPara = NULL;
isPoolEnded = false;
killAllThreads = CreateEvent(NULL, true, false, NULL);
}
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virtual ~ThreadPoolModle(void)
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{
if (!isPoolEnded)
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{
EndThreads();
CloseHandle(killAllThreads );
}
delete []m_pthreads;
}
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//得到线程池中的线程数
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int ThreadNum()const
{return m_nNum;}
//启动线程池所有的线程
bool StartThreads(LPVOID thrdPara);
//停止线程池所有的线程
void EndThreads();
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//挂起所有线程
void SuspendThreads();
//恢复所有线程
void ResumeThreads();
//设置线程优先级
void SetThreadsPriority(int nPriority);
//得到线程优先级
int GetThreadsPriority();
};
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#endif
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/**///////////////////////////////////////////////////////////////////////////////////threadpoolmodle.cpp//////////////////////////////////////////////////////////////
#include "threadpoolmodle.h"
bool ThreadPoolModle::CheckThrExit()
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{
if(WaitForSingleObject(killAllThreads, 0) == WAIT_OBJECT_0)
return true;
else
return false;
}
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bool ThreadPoolModle::StartThreads(void* thrdPara)
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{
m_thrdPara = thrdPara;
for (int i = 0; i < m_nNum; ++i)
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{
m_pthreads[i] = (HANDLE)_beginthreadex(NULL, 0, ThreadProc, this, 0, NULL);
if (m_pthreads[i] == NULL)
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{
EndThreads();
return false;
}
}
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return true;
}
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void ThreadPoolModle::EndThreads()
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{
int haveExit = 0;
SetEvent(killAllThreads);
WaitForMultipleObjects(m_nNum, m_pthreads, true, INFINITE);
for(int i = 0 ; i < m_nNum; ++i)
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{
CloseHandle(m_pthreads[i]);
}
isPoolEnded = true;
}
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void ThreadPoolModle::SuspendThreads()
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{
for(int i = 0 ; i < m_nNum; ++i)
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{
SuspendThread(m_pthreads[i]);
}
}
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void ThreadPoolModle::ResumeThreads()
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{
for(int i = 0 ; i < m_nNum; ++i)
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{
ResumeThread(m_pthreads[i]);
}
}
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void ThreadPoolModle::SetThreadsPriority(int nPriority)
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{
for(int i = 0 ; i < m_nNum; ++i)
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{
SetThreadPriority(m_pthreads[i], nPriority);
}
}
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int ThreadPoolModle::GetThreadsPriority()
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{
return GetThreadPriority(m_pthreads[0]);
}
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unsigned int _stdcall ThreadProc(void* lpParam)
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{
ThreadPoolModle* pThrdPool = static_cast<ThreadPoolModle*>(lpParam);
return pThrdPool->Run();
}
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