#include "stdafx.h"
#include "windows.h"#include "stdio.h"volatileint ThreadData =1;CRITICAL_SECTION csPrint; // 临界区//HANDLE evtPrint; // 事件信号,标记事件是否已发生//HANDLE mtxPrint; // 互斥信号,如有信号表明已经有线程进入临界区并拥有此信号//HANDLE smphPrint; // 信号量,表示是否已经达到允许的最大线程数void Print(char*str)
{ 
EnterCriticalSection(&csPrint); // 进入临界区//WaitForSingleObject(evtPrint, INFINITE); // 等待事件有信号//WaitForSingleObject(mtxPrint, INFINITE); // 等待互斥量空置（没有线程拥有它）//WaitForSingleObject(smphPrint, INFINITE); // 等待对共享资源请求被通过 等于 P操作 for (;*str !='\0';str++)
{ Sleep(50); printf("%c",*str);
} printf("\n"); LeaveCriticalSection(&csPrint); // 退出临界区//SetEvent(evtPrint); // 把事件信号量恢复,变为有信号//ReleaseMutex(mtxPrint); // 释放对互斥量的占有//ReleaseSemaphore(smphPrint, 1, NULL); // 释放共享资源 等于 V操作 
}void ThreadProcess(){ for(int i=0; i<6; i++){ Sleep(1000); Print("Sub Thread is running!"); } ThreadData =0;}int _tmain(int argc, _TCHAR* argv[]){ HANDLE hThread; DWORD ThreadID; InitializeCriticalSection(&csPrint); // 初始化临界区//evtPrint = CreateEvent(NULL, FALSE, TRUE, L"PrintEvent"); // 初始化事件//mtxPrint = CreateMutex(NULL, FALSE, L"PrintMutex"); // 初始化互斥量//smphPrint= CreateSemaphore(NULL, 1, 1, L"PrintSemaphore"); // 设置信号量1个资源,因此同时只可以有一个线程访问 hThread=CreateThread(NULL,0, (LPTHREAD_START_ROUTINE)ThreadProcess, NULL,0,&ThreadID);while (ThreadData){ Print("Main Thread is waiting for Sub Thread!"); Sleep(600); } printf("Main Thread Finished!"); system("pause");return0;}