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Cygwin: AF_UNIX: listen_pipe: consider STATUS_PIPE_CLOSING

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NtFsControlFile(FSCTL_PIPE_LISTEN) can return STATUS_PIPE_CLOSING if a
process has already connected to the pipe, written, and closed its
handle.  Treat this case the same as STATUS_SUCCESS.

FIXME: We need to check more carefully that there isn't really an
error condition.
This commit is contained in:
Ken Brown 2021-04-01 10:56:04 -04:00
parent d2fb5bc045
commit 451ec9bb13
1 changed files with 8 additions and 0 deletions
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8
winsup/cygwin/fhandler_socket_unix.cc
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@ -1142,6 +1142,14 @@ fhandler_socket_unix::listen_pipe ()
set_errno (EINTR);
else if (status == STATUS_PIPE_LISTENING)
set_errno (EAGAIN);
else if (status == STATUS_PIPE_CLOSING)
{
/* FIXME: For now I'm assuming that someone connected, wrote,
and closed. But we should probably query the os to be sure,
as in fhandler_fifo.cc. */
debug_printf ("STATUS_PIPE_CLOSING");
ret = 0;
}
else if (status == STATUS_SUCCESS || status == STATUS_PIPE_CONNECTED)
ret = 0;
else