命名管道进程通信

命名管道进程通信

效果：server读取client发送的字符串。

 

server：

// named-pipe-server.cpp
#include 
#include 
using namespace std;
char buf[100];
HANDLE hpipe; 
DWORD rlen=0,wlen=0;
void f_create(){
    hpipe=CreateNamedPipe("\\\\.\\pipe\\me",PIPE_ACCESS_DUPLEX ,
	PIPE_TYPE_MESSAGE|PIPE_WAIT ,PIPE_UNLIMITED_INSTANCES,0,0,0,NULL);
	
	if(ConnectNamedPipe(hpipe, 0)==FALSE){//等待客户端链接 
      cerr<<"链接成功\n"<

 

client：

//named-pipe-client.cpp
#include 
#include
#include 
using namespace std;
char buf[100];
HANDLE hpipe; 
DWORD rlen=0,wlen=0;
void f_connect(){
	WaitNamedPipe("\\\\.\\pipe\\me",NMPWAIT_WAIT_FOREVER);//等待连接
    hpipe=CreateFile("\\\\.\\pipe\\me", 
	GENERIC_READ | GENERIC_WRITE, 0,
    NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);//打开管道 
    if(hpipe==INVALID_HANDLE_VALUE) cerr<<"open named pipe error\n";
    else cout<<"open named pipe ok\n";
}
void f_write(char *a){
	if(WriteFile(hpipe,a,256,&wlen,0)==FALSE){
		cerr<<"client write error\n";
	}
	else{
		cout<<"client write ok. context is:"<

 

control：

//通过编程实现先开启server。再打开 client。
 
#include 
#include
using namespace std;
int main(int argc, char *argv[])
{
	system("start named-pipe-server.exe");//start 不能漏 
	Sleep(1000);
	system("start named-pipe-client.exe");
	return 0;
}

 

执行效果