From b83056e9bbb8d42e9b15b73edded33e464ae9a6a Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Tue, 30 Jul 2013 11:59:15 +0200
Subject: libnetfs: add fsys_get_children

Keep track of active translators and handle fsys_get_children
requests.

* libnetfs/Makefile (FSYSSRCS): Add fsys-get-children.c.
* libnetfs/dead-name.c (ports_dead_name): Remove dead translators.
* libnetfs/file-set-translator.c (netfs_S_file_set_translator): Register
  active translators.
* libnetfs/fsys-get-children.c: New file.
---
 libnetfs/file-set-translator.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'libnetfs/file-set-translator.c')

diff --git a/libnetfs/file-set-translator.c b/libnetfs/file-set-translator.c
index b107ccd5..a9883a3a 100644
--- a/libnetfs/file-set-translator.c
+++ b/libnetfs/file-set-translator.c
@@ -1,5 +1,5 @@
 /*
-   Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1999, 2001, 2013 Free Software Foundation, Inc.
    Written by Michael I. Bushnell, p/BSG.
 
    This file is part of the GNU Hurd.
@@ -175,6 +175,21 @@ netfs_S_file_set_translator (struct protid *user,
 	}
     }
 
+  if (! err && user->po->path)
+    err = fshelp_set_active_translator (user->po->path, active);
+
+  if (! err && active != MACH_PORT_NULL)
+    {
+      mach_port_t old;
+      err = mach_port_request_notification (mach_task_self (), active,
+					    MACH_NOTIFY_DEAD_NAME, 0,
+					    user->pi.port_right,
+					    MACH_MSG_TYPE_MAKE_SEND_ONCE,
+					    &old);
+      if (old != MACH_PORT_NULL)
+	mach_port_deallocate (mach_task_self (), old);
+    }
+
  out:
   pthread_mutex_unlock (&np->lock);
   return err;
-- 
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