36 windows_37_windows_Sync

windows_37_windows_Sync

// windows_37_windows_Sync.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <windows.h>

CHAR *g_pszText = NULL;
  
DWORD g_nTlsIndex = NULL; //全局索引号


void print( )
{
  printf( "%s\n", g_pszText );
  //从索引中把值取出来
  CHAR *pszText = (CHAR*)TlsGetValue( g_nTlsIndex );
  printf( "TLS: %s\n", pszText );
}
DWORD WINAPI PrintProc( LPVOID pParam )
{
  CHAR *pszText = (CHAR*)pParam;
  g_pszText = (CHAR *)malloc( 100 );
  strcpy_s( g_pszText, strlen( pszText )+1, pszText );

  //将值保存到TLS索引当中
  TlsSetValue( g_nTlsIndex, g_pszText );

  while (true)
  {
    print( );
    Sleep( 1000 );
  }
  return 0;
}
//
void Create( )
{
  HANDLE hThread = NULL;
  DWORD nThreadID = 0;

  CHAR szText1[] = "ThreadProc-------";
  hThread = CreateThread( NULL, 0, PrintProc, szText1, 0, &nThreadID );
  
 //线程第二 
  CHAR szText2[] = "ThreadProc2***********";
  hThread = CreateThread( NULL, 0, PrintProc, szText2, 0, &nThreadID );

  getchar( );
  WaitForSingleObject( hThread, INFINITE );

  CloseHandle( hThread );
}
int _tmain(int argc, _TCHAR* argv[])
{
  //1、创建 TLS 索引
  //TlsAlloc
  g_nTlsIndex = TlsAlloc( );
  //创建线程
  Create( );
  //释放索引
  TlsFree( g_nTlsIndex );
	return 0;
}

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