# 
# patch "netxx_pipe.cc"
#  from [13382004adce903aefb4b95c8f4a159e99391cdc]
#    to [96d429f6144a46bb99537d27bcc580f55096a2a8]
# 
========================================================================
--- netxx_pipe.cc	13382004adce903aefb4b95c8f4a159e99391cdc
+++ netxx_pipe.cc	96d429f6144a46bb99537d27bcc580f55096a2a8
@@ -93,13 +93,17 @@
   fd2[0]=-1;
   fd2[1]=-1;
   E(_pipe(fd1,0,_O_BINARY)==0, F("first pipe failed"));
-  // there are ways to ensure that the parent side does not get inherited
-  // by the child (e.g. O_NOINHERIT), I don't use them for now
   if (_pipe(fd2,0,_O_BINARY))
     { ::close(fd1[0]);
       ::close(fd1[1]);
       E(false,F("second pipe failed"));
     }
+  // it looks like we have to use CreateNamedPipe and CreateFile (OPEN_EXISTING)
+  // if we do not want the pipe to block
+
+  // mark these file handles as not inheritable
+  SetHandleInformation( (HANDLE)_get_osfhandle(fd1[0]), HANDLE_FLAG_INHERIT, 0);
+  SetHandleInformation( (HANDLE)_get_osfhandle(fd2[1]), HANDLE_FLAG_INHERIT, 0);
   PROCESS_INFORMATION piProcInfo;
   STARTUPINFO siStartInfo;
   memset(&piProcInfo,0,sizeof piProcInfo);
@@ -121,6 +125,10 @@
   readfd=fd1[0];
   writefd=fd2[1];
 
+  HANDLE h_nonblockwrite = ReOpenFile((HANDLE)_get_osfhandle(readfd),FILE_READ_DATA,0,FILE_FLAG_OVERLAPPED));
+  ::close(readfd);
+  readfd=_open_osfhandle(h_nonblockwrite);
+
   memset(&overlap,0,sizeof overlap);
   overlap.hEvent=CreateEvent(0,FALSE,FALSE,0);
   bytes_available=0;