#include "stdafx.h"
#include "NamePipeClient.h"

using namespace std;

void NamePipeClient::OpenNamedPipeInClient()
{    
    //等待连接命名管道    
    if( !WaitNamedPipe(_T("\\\\.\\pipe\\testspipe"), NMPWAIT_WAIT_FOREVER) )    
    {        
        cout<<"命名管道实例不存在 ..."<< endl<< endl;        
        return;    
    } 
    cout << "成功连接到服务器" << endl;
    //打开命名管道    
    hNamedPipe = CreateFile( _T("\\\\.\\pipe\\testspipe"), GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);    
    if( INVALID_HANDLE_VALUE == hNamedPipe )    
    {        
        cout << "打开命名管道失败!!!" << endl << endl;        
        return;    
    }
}

void NamePipeClient::NamedPipeReadInClient()
{
      char * pReadBuf;    
      DWORD  dwRead;     
      pReadBuf = new char[strlen(pStr) + 1];    
      memset(pReadBuf, 0, strlen(pStr) + 1);     
      //从命名管道中读取数据    
      if( !ReadFile(hNamedPipe, pReadBuf, strlen(pStr), &dwRead, NULL) )    
      {        
          delete []pReadBuf;         
          cout << "读取数据失败 ..."<< endl << endl;        
          return;    
      }    
      cout<<"读取数据成功:: "<< pReadBuf << endl << endl;
}

void NamePipeClient::NamedPipeWriteInClient()
{
       DWORD dwWrite;     
       //向命名管道中写入数据    
       if( !WriteFile(hNamedPipe, pStr, strlen(pStr), &dwWrite, NULL) )    
       {        
           cout<<"写入数据失败 ..." << endl << endl;        
           return;    
       }    
       cout<< "写入数据成功:: "<< pStr << endl << endl;
}

int main()
{
    NamePipeClient pipeclient;
    pipeclient.OpenNamedPipeInClient();
    //往命名管道中写入数据
    pipeclient.NamedPipeWriteInClient();
    //接收从服务器发来的数据
    pipeclient.NamedPipeReadInClient();
    system("pause");
    return 0;
}