In thread: http://archives.postgresql.org/pgsql-hackers-win32/2004-11/msg00010.php --- >Do we actually need to pass the handle, or could the subprocess reopen >the pipe for itself?
Nope, we need to pass the handle. Only one process can be the server-side of the pipe, and once the postmaster has opened it, the child process can't do it - the only way to get it is through inheritance. --- In current implementation, we can reopen it, but the problem is that when postmaster should close those three (shmem, mutex, event) handles? So the best way is still "Postmaster create them, duplicate these handles in BackendParameters and the child inheritates them". Do I got your meaning? Regards, Qingqing ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org