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windows系统调用 线程 启动与挂起

2024-07-07 20:31:49   221人阅读

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#include "iostream"
#include "windows.h"
using namespace std;
 
class CWorkerThread{
public:
    CWorkerThread(LPCTSTR m_szName):m_szName(m_szName),m_hThread(INVALID_HANDLE_VALUE){
        m_hThread=CreateThread(
            NULL,
            0,
            ThreadProc,
            reinterpret_cast<LPVOID>(this),
            0,
            NULL
            );
    }
 
    virtual ~CWorkerThread(){CloseHandle(m_hThread);}
 
    virtual void WaitForCompletion(){
        WaitForSingleObject(m_hThread,INFINITE);
    }
 
    virtual void SetPriority(int nPriority){
        SetThreadPriority(m_hThread,nPriority);
    }
 
    virtual void Suspend(){
        SuspendThread(m_hThread);
    }
 
    virtual void Resume(){
        ResumeThread(m_hThread);
    }
 
protected:
    static DWORD WINAPI ThreadProc(LPVOID lpParam){
        CWorkerThread *pThis=
            reinterpret_cast<CWorkerThread*>(lpParam);
 
        pThis->DoStuff();
        return (0);
    }
 
    virtual void DoStuff(){
        for(int n=0;n<10;n++){
            cout<<"Thread"<<m_szName<<"ID:"<<GetCurrentThreadId()<<",count"<<n<<endl;
        }
    }
 
protected:
    HANDLE m_hThread;
    LPCTSTR m_szName;
};
 
void main(){
    CWorkerThread wtA("A");
    CWorkerThread wtB("B");
 
    wtA.SetPriority(THREAD_PRIORITY_LOWEST);
 
    wtB.Suspend();
 
    wtA.WaitForCompletion();
    wtB.Resume();
    wtB.WaitForCompletion();
 
    cout<<"Both threads complete."<<endl;
 
    getchar();
}

　　


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