C++ 多线程(两个线程卖火车票)
#include <windows.h> #include <iostream.h> DWORD WINAPI Fun1Proc(LPVOID lpParameter);//thread data DWORD WINAPI Fun2Proc(LPVOID lpParameter);//thread data int index=0; int tickets=10; HANDLE hMutex; void main() { HANDLE hThread1; HANDLE hThread2; //创建线程 hThread1=CreateThread(NULL,0,Fun1Proc,NULL,0,NULL); hThread2=CreateThread(NULL,0,Fun2Proc,NULL,0,NULL); CloseHandle(hThread1); CloseHandle(hThread2); //创建互斥对象 hMutex=CreateMutex(NULL,TRUE,"tickets"); if (hMutex) { if (ERROR_ALREADY_EXISTS==GetLastError()) { cout<<"only one instance can run!"<<endl; return; } } WaitForSingleObject(hMutex,INFINITE); ReleaseMutex(hMutex); ReleaseMutex(hMutex); Sleep(4000); } //线程1的入口函数 DWORD WINAPI Fun1Proc(LPVOID lpParameter)//thread data { while (true) { ReleaseMutex(hMutex); WaitForSingleObject(hMutex,INFINITE); if (tickets>0) { Sleep(1); cout<<"thread1 sell ticket :"<<tickets--<<endl; } else break; ReleaseMutex(hMutex); } return 0; } //线程2的入口函数 DWORD WINAPI Fun2Proc(LPVOID lpParameter)//thread data { while (true) { ReleaseMutex(hMutex); WaitForSingleObject(hMutex,INFINITE); if (tickets>0) { Sleep(1); cout<<"thread2 sell ticket :"<<tickets--<<endl; } else break; ReleaseMutex(hMutex); } return 0; }