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  1. /* filename: pipe_server.c */
  2.  
  3. #define UNICODE
  4.  
  5. #include <windows.h>
  6. #include <stdio.h>
  7.  
  8. int main() {
  9.   wchar_t buf[1024];
  10.   int numBytes = 0;
  11.   BOOL writeGood = FALSE;
  12.  
  13.   HANDLE hPipe = NULL;
  14.   hPipe = CreateNamedPipe(L"\\\\.\\pipe\\purpose",
  15.                           PIPE_ACCESS_DUPLEX,
  16.                           PIPE_TYPE_BYTE,
  17.                           1,
  18.                           512, /* out-buf size */
  19.                           512, /* in-buf size */
  20.                           0,
  21.                           NULL);
  22.  
  23.   if (hPipe == INVALID_HANDLE_VALUE) {
  24.     _putws(L"hPipe error.\n");
  25.     return 0;
  26.   }
  27.  
  28.   puts("server is listening...");
  29.   if (ConnectNamedPipe(hPipe, NULL) == TRUE) {
  30.     writeGood = WriteFile(hPipe, L"^_^", 8, &numBytes, NULL);
  31.     printf("numBytes for writefile = %d\n", numBytes);
  32.     if (writeGood == FALSE)  return 0;
  33.  
  34.     _putws(L"sleeping...");
  35.     Sleep(8000);
  36.  
  37.     writeGood = WriteFile(hPipe, L">_<", 8, &numBytes, NULL);
  38.     printf("numBytes for writefile = %d\n", numBytes);
  39.     if (writeGood == FALSE)  return 0;
  40.  
  41.     ReadFile(hPipe, 
  42.              buf, 
  43.              1024 * sizeof(wchar_t),
  44.              &numBytes,
  45.              NULL);
  46.     printf("numBytes for readfile = %d\n", numBytes);
  47.     _putws(buf);
  48.   }
  49.  
  50.   FlushFileBuffers(hPipe);
  51.   DisconnectNamedPipe(hPipe); 
  52.   CloseHandle(hPipe);
  53.   return 0;
  54. }
Not running #stdin #stdout 0s 0KB
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https://ideone.com/z2pRRF
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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