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类的实现为:
××××××××××××××××××××CThread.cpp
#include “CThread.h”
#include <string>
#include <iostream>
using namespace std;
void CTask::SetData(void * data)
{
m_ptrData = data;
}
vector<pthread_t> CThreadPool::m_vecBusyThread;
vector<pthread_t> CThreadPool::m_vecIdleThread;
pthread_mutex_t CThreadPool::m_pthreadMutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t CThreadPool::m_pthreadCond = PTHREAD_COND_INITIALIZER;
CThreadPool::CThreadPool(int threadNum)
{
this->m_iThreadNum = threadNum;
Create();
}
int CThreadPool::MoveToIdle(pthread_t tid)
{
vector<pthread_t>::iterator busyIter = m_vecBusyThread.begin();
while(busyIter != m_vecBusyThread.end())
{
if(tid == *busyIter)
{
break;
}
busyIter++;
}
m_vecBusyThread.erase(busyIter);
m_vecIdleThread.push_back(tid);
return 0;
}
int CThreadPool::MoveToBusy(pthread_t tid)
{
vector<pthread_t>::iterator idleIter = m_vecIdleThread.begin();
while(idleIter != m_vecIdleThread.end())
{
if(tid == *idleIter)
{
break;
}
idleIter++;
}
m_vecIdleThread.erase(idleIter);
m_vecBusyThread.push_back(tid);
return 0;
}
void* CThreadPool::ThreadFunc(void * threadData)
{
pthread_t tid = pthread_self();
while(1)
{
pthread_mutex_lock(&m_pthreadMutex);
pthread_cond_wait(&m_pthreadCond,&m_pthreadMutex);
cout 《 “tid:” 《 tid 《 ” run” 《 endl;
//get task
vector<CTask*>* taskList = (vector<CTask*>*)threadData;
vector<CTask*>::iterator iter = taskList->begin();
while(iter != taskList->end())
{
MoveToBusy(tid);
break;
}
CTask* task = *iter;
taskList->erase(iter);
pthread_mutex_unlock(&m_pthreadMutex);
cout 《 “idel thread number:” 《 CThreadPool::m_vecIdleThread.size() 《 endl;
cout 《 “busy thread number:” 《 CThreadPool::m_vecBusyThread.size() 《 endl;
//cout 《 “task to be run:” 《 taskList->size() 《 endl;
task->Run();
//cout 《 “CThread::thread work” 《 endl;
cout 《 “tid:” 《 tid 《 ” idle” 《 endl;
}
return (void*)0;
}
int CThreadPool::AddTask(CTask *task)
{
this->m_vecTaskList.push_back(task);
pthread_cond_signal(&m_pthreadCond);
return 0;
}
int CThreadPool::Create()
{
for(int i = 0; i < m_iThreadNum;i++)
{
pthread_t tid = 0;
pthread_create(&tid,NULL,ThreadFunc,&m_vecTaskList);
m_vecIdleThread.push_back(tid);
}
return 0;
}
int CThreadPool::StopAll()
{
vector<pthread_t>::iterator iter = m_vecIdleThread.begin();
while(iter != m_vecIdleThread.end())
{
pthread_cancel(*iter);
pthread_join(*iter,NULL);
iter++;
}
iter = m_vecBusyThread.begin();
while(iter != m_vecBusyThread.end())
{
pthread_cancel(*iter);
pthread_join(*iter,NULL);
iter++;
}
return 0;
}
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怕仍是不能。于是他们比任何人都看的清楚,又比任何人都看的不确切。