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来源：互联网发布：java与传感器通信编辑：程序博客网时间：2024/06/17 13:38

#include "stdafx.h"
#include<windows.h>
#include<iostream>
#include<process.h>
int tickets = 100;
HANDLE hSemaphore = NULL;
void Thread1Proc(LPVOID lParam)
{
while (true)
{
WaitForSingleObject(hSemaphore, INFINITE);
if (tickets > 0)
{
std::cout << "线程一卖掉第" << tickets-- << "张票" << std::endl;
ReleaseSemaphore(hSemaphore,1,NULL);
}
else
{
ReleaseSemaphore(hSemaphore, 1, NULL);
break;
}
}
}
void Thread2Proc(LPVOID lParam)
{
while (true)
{
WaitForSingleObject(hSemaphore, INFINITE);
if (tickets > 0)
{
std::cout << "线程二卖掉第" << tickets-- << "张票" << std::endl;
ReleaseSemaphore(hSemaphore, 1, NULL);
}
else
{
ReleaseSemaphore(hSemaphore, 1, NULL);
break;
}
}
}
void Thread3Proc(LPVOID lParam)
{
while (true)
{
WaitForSingleObject(hSemaphore, INFINITE);
if (tickets > 0)
{
std::cout << "线程三卖掉第" << tickets-- << "张票" << std::endl;
ReleaseSemaphore(hSemaphore, 1, NULL);
}
else
{
ReleaseSemaphore(hSemaphore, 1, NULL);
break;
}
}
}
int _tmain(int argc, _TCHAR* argv[])
{
hSemaphore = CreateSemaphore(NULL, 1, 1, NULL);
HANDLE hThread[3];
hThread[0] = (HANDLE)_beginthreadex(NULL, 0, (unsigned int(_stdcall*)(void*))&Thread1Proc,NULL,0,NULL);
hThread[1] = (HANDLE)_beginthreadex(NULL, 0, (unsigned int(_stdcall*)(void*))&Thread2Proc, NULL, 0, NULL);
hThread[2] = (HANDLE)_beginthreadex(NULL, 0, (unsigned int(_stdcall*)(void*))&Thread3Proc, NULL, 0, NULL);

//WaitForMultipleObjects(3,hThread,true,INFINITE);
while (true)
{
WaitForSingleObject(hSemaphore, INFINITE);
if (tickets > 0)
{
std::cout << "主线程卖掉第" << tickets-- << "张票" << std::endl;
ReleaseSemaphore(hSemaphore, 1, NULL);
}
else
{
ReleaseSemaphore(hSemaphore, 1, NULL);
break;
}
}
CloseHandle(hThread[0]);
CloseHandle(hThread[1]);
CloseHandle(hThread[2]);
CloseHandle(hSemaphore);
return 0;
}

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