Named pipes communicate across processes

Client code:

#include "stdafx.h" #include <stdio.h> #include <windows.h> #include <ctime> int main (int argc, _t        char* argv[]) {Srand (Time (NULL));      DWORD Wlen = 0;        Sleep (1000);//wait for the pipe to be created successfully!        BOOL BRet = Waitnamedpipe (TEXT ("\\\\.\\pipe\\mypipe"), nmpwait_wait_forever);          if (!bret) {printf ("Connect the Namedpipe failed!\n");      return 0; } HANDLE hpipe = CreateFile (//pipe belongs to a special file TEXT ("\\\\.\\pipe\\mypipe"),//filename created by GENE Ric_read | Generic_write,//File mode 0,//whether to share NULL,//point to an SEC Urity_attributes structure of the pointer open_existing,//create parameter File_attribute_normal,//File attributes (hidden, only                          Read) Normal is the default property NULL);      The template creates a handle to the file if (Invalid_handle_value = = hpipe) {printf ("Open the Exit pipe failed!\n");          } else {while (true){char buf[256] = "";              sprintf (buf, "%s%d", Buf,rand ()%1000); if (WriteFile (hpipe,buf,sizeof (BUF), &wlen,0) ==false)//send content to server {printf ("Write to Pipe F                  Ailed!\n ");              Break                  } else {printf ("to Server:data =%s, size =%d\n", buf, Wlen);                  Char rbuf[256] = "";                  DWORD Rlen = 0;  ReadFile (hpipe, Rbuf, sizeof (RBUF), &rlen, 0);              Accept the service sent over the contents of printf ("from server:data =%s, size =%d\n", Rbuf, Rlen);          } Sleep (1000);      } closehandle (hpipe);//Close Pipe} system ("Pause");  return 0;   }

Server-side code:

#include "stdafx.h" #include <stdio.h> #include <windows.h> #include <ctime> int main (int argc, _t        char* argv[]) {Srand (Time (NULL));      Char buf[256] = "";      DWORD Rlen = 0; HANDLE hpipe = CreateNamedPipe (TEXT ("\\\\.\\pipe\\mypipe"),//pipe name Pipe_access_du PLEX,//pipe type pipe_type_message| pipe_readmode_message|                                                  Pipe_wait,//Pipe parameters Pipe_unlimited_instances,//pipeline can create maximum number of instances 0, Output buffer length 0 means default 0,//input buffer length 0                                              Represents the default Nmpwait_wait_forever,//timeout time NULL); Specify a security_attributes structure, or pass a 0 value if (invalid_handle_value = = hpipe) {printf ("Create P      Ipe Error (%d) \ n ", GetLastError ()); } else {printf ("Waiting for Client connection...\n "); if (!          Connectnamedpipe (Hpipe, NULL))//blocking waits for client connections.          {printf ("Connection failed!\n");          } else {printf ("Connection success!\n"); } while (true) {if (! ReadFile (Hpipe,buf,256,&rlen,null))//Accept the content sent by the client {printf ("Read Data from P                  Ipe failed!\n ");              Break                                    } else {printf ("from client:data =%s, size =%d\n", buf, Rlen);                  Char wbuf[256] = "";                  sprintf (WBUF, "%s%d", Wbuf, Rand ()%1000);                  DWORD Wlen = 0; WriteFile (hpipe, wbuf, sizeof (WBUF), &wlen, 0);                  Send content to client printf ("To Client:data =%s, size =%d\n", wbuf, Wlen);              Sleep (1000);           }} flushfilebuffers (Hpipe); DisconnectnamedpipE (hpipe);      CloseHandle (hpipe);//Close Pipe} system ("Pause");  return 0;   }

Next, write the C # Name Pipe cross-process communication

Named pipes communicate across processes