多线程模拟火车站售票

来源：互联网发布：机械师软件编辑：程序博客网时间：2024/04/28 14:34

最近在学操作系统，多线程的小例子。网上搜的。。比较基础，学一下。

#include <iostream>#include <windows.h>using namespace std;HANDLE hMutex=NULL;int num=100;DWORD WINAPI Fun1(LPVOID lpParamter){   while(1)    {      WaitForSingleObject(hMutex,INFINITE);      if(num>0)      {         Sleep(20);         cout << "Thread 1 sell ticket : "<<num--<<endl;      }       else break;       ReleaseMutex(hMutex);    }    return 0;}DWORD WINAPI Fun2(LPVOID lpParamter){   while(1)    {      WaitForSingleObject(hMutex,INFINITE);      if(num>0)      {         Sleep(80);         cout << "Thread 2 sell ticket : "<<num--<<endl;      }       else break;       ReleaseMutex(hMutex);    }    return 0;}int main(){  HANDLE hThread_1 = CreateThread(NULL, 0, Fun1, NULL, 0, NULL);  HANDLE hThread_2 = CreateThread(NULL, 0, Fun2, NULL, 0, NULL);   CloseHandle(hThread_1);   CloseHandle(hThread_2);   hMutex=CreateMutex(NULL,FALSE,NULL);   if (hMutex)    {        if (ERROR_ALREADY_EXISTS==GetLastError())        {            cout<<"only one instance can run!"<<endl;            return 0;        }    }    WaitForSingleObject(hMutex,INFINITE);   ReleaseMutex(hMutex);     Sleep(6000);//合理控制时间，否则票还没卖完，主进程就结束了。    return 0;}

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