演示一下临界区的死锁

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于 2011-10-20 19:04:55 发布

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// deadlock.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <Windows.h>
#include <iostream>
#include <process.h>
using namespace std;

CRITICAL_SECTION cs1;
CRITICAL_SECTION cs2;

unsigned int _stdcall threadProc(void* param)
{
while (TRUE)
{
  EnterCriticalSection(&cs1);
  cout<<"thread 进入临界区cs1\n";
  EnterCriticalSection(&cs2);
  cout<<"thread 进入临界区cs2\n";
  LeaveCriticalSection(&cs2);
  LeaveCriticalSection(&cs1);
}

}

int _tmain(int argc, _TCHAR* argv[])
{
InitializeCriticalSection(&cs1);
InitializeCriticalSection(&cs2);
_beginthreadex(NULL,0,threadProc,NULL,0,NULL);

while (TRUE)
{
  EnterCriticalSection(&cs2);
  cout<<"主线程进入临界区cs2\n";
  EnterCriticalSection(&cs1);
  cout<<"主线程进入临界区cs1\n";
  LeaveCriticalSection(&cs1);
  LeaveCriticalSection(&cs2);
}
DeleteCriticalSection(&cs1);
DeleteCriticalSection(&cs2);
return 0;
}