用VC++5.0实现多线程的调度和处理

核心提示： 3在CMutexesDlg的头文件中加入如下成员变量：CString m_strNumber;//线程所要操作的资源对象CMutex m_mutex;//用于同步机制的互斥量CCounterThread* m_pCounterThread;//指向计数线程的指针CDisplayThread

3在CMutexesDlg的头文件中加入如下成员变量：

CString m_strNumber;//线程所要操作的资源对象

CMutex m_mutex;//用于同步机制的互斥量

CCounterThread* m_pCounterThread;//指向计数线程的指针

CDisplayThread* m_pDisplayThread;//指向显示线程的指针

首先在对话框的初始化函数中加入如下代码对对话框进行初始化：

BOOL CMutexesDlg::OnInitDialog()
{
……
//初始化进程优先级组合框并置缺省为NORMAL
CComboBox* pBox;
pBox = (CComboBox*) GetDlgItem(IDC_PRIORITYCLASS);
ASSERT(pBox != NULL);
if (pBox != NULL){
pBox- >AddString(_T("Idle"));
pBox- >AddString(_T("Normal"));
pBox- >AddString(_T("High"));
pBox- >AddString(_T("Realtime"));
pBox- >SetCurSel(1);
}
//初始化显示线程优先级组合框并置缺省为NORMAL
pBox = (CComboBox*) GetDlgItem(IDC_DSPYTHRDPRIORITY);
ASSERT(pBox != NULL);
if (pBox != NULL){
pBox- >AddString(_T("Idle"));
pBox- >AddString(_T("Lowest"));
pBox- >AddString(_T("Below normal"));
pBox- >AddString(_T("Normal"));
pBox- >AddString(_T("Above normal"));
pBox- >AddString(_T("Highest"));
pBox- >AddString(_T("Timecritical"));
pBox- >SetCurSel(3);
}
//初始化计数线程优先级组合框并置缺省为NORMAL
pBox = (CComboBox*) GetDlgItem(IDC_CNTRTHRDPRIORITY);
ASSERT(pBox != NULL);
if (pBox != NULL){
pBox- >AddString(_T("Idle"));
pBox- >AddString(_T("Lowest"));
pBox- >AddString(_T("Below normal"));
pBox- >AddString(_T("Normal"));
pBox- >AddString(_T("Above normal"));
pBox- >AddString(_T("Highest"));
pBox- >AddString(_T("Timecritical"));
pBox- >SetCurSel(3);
}
//初始化线程挂起复选框为挂起状态
CButton* pCheck = (CButton*) GetDlgItem(IDC_PAUSE);
pCheck- >SetCheck(1);
//初始化线程
m_pDisplayThread = (CDisplayThread*)
AfxBeginThread(RUNTIME_CLASS(CDisplayThread),
THREAD_PRIORITY_NORMAL,
0,
CREATE_SUSPENDED);
m_pDisplayThread- >SetOwner(this);
m_pCounterThread = (CCounterThread*)
AfxBeginThread(RUNTIME_CLASS(CCounterThread),
THREAD_PRIORITY_NORMAL,
0,
CREATE_SUSPENDED);
m_pCounterThread- >SetOwner(this);
……
}
然后填加成员函数：