windows命名管道

#include "stdafx.h"
#include 
#include 


int _tmain(int argc, _TCHAR* argv[])
{
	//接受所有安全描述(也就是把管道的连接权限降到最低).
	SECURITY_ATTRIBUTES sa;
	SECURITY_DESCRIPTOR sd;
	 if( InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION) )
	 {
		 // add a NULL disc. ACL to the security descriptor.
		 if (SetSecurityDescriptorDacl(&sd, TRUE, (PACL) NULL, FALSE))
		 {
			  sa.nLength = sizeof(sa);
			  sa.lpSecurityDescriptor =&sd;
			  sa.bInheritHandle = TRUE;

			  //创建一个命名管道，在windows中\代表zhuan‘yi两个\\代表一个\  
			  HANDLE hNamedPipe = CreateNamedPipeA("\\\\.\\pipe\\testName",  
				  PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,  
				  PIPE_TYPE_BYTE, 1, 1024, 1024,0 , &sa);  
			  //检查是否创建成功  
			  if (hNamedPipe == INVALID_HANDLE_VALUE)  
			  {  
				  printf("create named pipe failed!\n");  
			  }  
			  else  Window
			  {  
				  printf("create named pipe success!\n");  
			  }  
			  //异步IO结构  
			  OVERLAPPED op;  
			  ZeroMemory(&op, sizeof(OVERLAPPED));  
			  //创建一个事件内核对象  
			  op.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);  
			  //等待一个客户端进行连接  
			  BOOL b = ConnectNamedPipe(hNamedPipe, &op);  
			  //当有客户端进行连接时，事件变成有信号的状态  
			  if (WaitForSingleObject(op.hEvent, INFINITE) == 0)  
			  {  
				  printf("client connect success!\n");  
			  }  
			  else  
			  {  
				  printf("client connect failed!\n");  
			  }  
			  //连接成功后，进行通信，读写  
			  char  buff[100];  
			  sprintf_s(buff, 100, "test message from server!");  
			  DWORD cbWrite;  
			  WriteFile(hNamedPipe, buff, strlen(buff), &cbWrite, NULL);  

			  ZeroMemory(buff, 100);  
			  ReadFile(hNamedPipe, buff, 100, &cbWrite, NULL);  
			  //通信完之后，断开连接  
			  DisconnectNamedPipe(hNamedPipe);  
			  //关闭管道  
			  CloseHandle(hNamedPipe);  
		 }
	 }

    system("pause"); 
	return 0;
}

#include "stdafx.h"
#include   
#include   


int _tmain(int argc, _TCHAR* argv[])
{
	//检查命名管道是否存在  
    BOOL b = WaitNamedPipeA("\\\\.\\pipe\\testName", NMPWAIT_WAIT_FOREVER);  
    //打开管道  
    HANDLE hFile = CreateFileA("\\\\.\\pipe\\testName",  
        GENERIC_READ | GENERIC_WRITE,  
        0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);  
    //检查是否连接成功  
    if (!b || hFile == INVALID_HANDLE_VALUE)  
    {  
        printf("connect failed!\n");  
    }  
    else  
    {  
        printf("connect success!\n");  
    }  
    //进行通信  
    char  buf[100];  
    ZeroMemory(buf, 100);  
    DWORD dwRead;  
    ReadFile(hFile, buf, 100, &dwRead, NULL);  
    printf(buf);  
    WriteFile(hFile, "test message for client!", strlen("test message for client!"), &dwRead, NULL);  
    //关闭管道  
    CloseHandle(hFile);  
    system("pause"); 
	return 0;
}