PNS Windows_37_thread_interlock Thread-Atomic lock

Windows_37_thread_interlock Thread-Atomic lock

  
 

   
  

  
// windows_37_Thread_InterLock.cpp : 定义控制台应用程序的入口点。
   
  

  
//
   
  

  

   
  

  
#include "stdafx.h"
   
  

  
#include "windows.h"
   
  

  

   
  

  
long g_nValue1 = 0;
   
  

  
long g_nValue2 = 0;
   
  

  

   
  

  
DWORD WINAPI InterProc1( LPVOID pParam )
   
  

  
{
   
  

  
 for (int nIndex = 0; nIndex < 10000000;nIndex++)
   
  

  
 {
   
  

  
 //普通的加加
   
  

  
 g_nValue1++;
   
  

  
 }
   
  

  
 return 0;
   
  

  
}
   
  

  
DWORD WINAPI InterProc2( LPVOID pParam )
   
  

  
{
   
  

  
 for (int nIndex = 0; nIndex < 100;nIndex++)
   
  

  
 {
   
  

  
 //原子锁加加
   
  

  
 //g_nValue2++;
   
  

  
 InterlockedIncrement( &g_nValue2 );
   
  

  
 }
   
  

  
 return 0;
   
  

  
}
   
  

  

   
  

  
void Create( )
   
  

  
{
   
  

  
 DWORD nThreadID = 0;
   
  

  
 HANDLE Hthread  [ 4  ]   =    {  NULL    
   
  

  
 HThread  [ 0  ]    Span class= "pun" >=   createthread   (   NULL     0     interproc1   ,   NULL     0     &     
   
  

  
 HThread  [ 1  ]    Span class= "pun" >=   createthread   (   NULL     0     interproc1   ,   NULL     0     &     
   
  

  
 HThread  [ 2  ]    Span class= "pun" >=   createthread   (   NULL     0     interproc2   ,   NULL     0     &     
   
  

  
 HThread  [ 3  ]    Span class= "pun" >=   createthread   (   NULL     0     interproc2   ,   NULL     0     &     
   
  

  
 WaitForMultipleObjects( 4, hThread, FALSE, INFINITE );
   
  

  
 printf( "%ld\n", g_nValue1 );
   
  

  
 printf( "%ld\n", g_nValue2 );
   
  

  

   
  

  
}
   
  

  
int _tmain(int argc, _TCHAR* argv[])
   
  

  
{
   
  

  
 Create( );
   
  

  
return 0;
   
  

  
}
  
 

From for notes (Wiz)

PNS Windows_37_thread_interlock Thread-Atomic lock