From f18f06ea2fbde9d5ab2d6bbd30e4cdeebb186c87 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Tue, 30 Jul 2013 11:59:14 +0200
Subject: libdiskfs: add fsys_get_children

Keep track of active translators and handle fsys_get_children
requests.

* libdiskfs/Makefile (FSYSSRCS): Add fsys-get-children.c.
* libdiskfs/dead-name.c (ports_dead_name): Remove dead translators.
* libdiskfs/file-set-trans.c (diskfs_S_file_set_translator): Register
  active translators.
* libdiskfs/fsys-get-children.c: New file.
---
 libdiskfs/file-set-trans.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'libdiskfs/file-set-trans.c')

diff --git a/libdiskfs/file-set-trans.c b/libdiskfs/file-set-trans.c
index 49303e7c..8de2e641 100644
--- a/libdiskfs/file-set-trans.c
+++ b/libdiskfs/file-set-trans.c
@@ -1,5 +1,6 @@
 /* libdiskfs implementation of fs.defs: file_set_translator
-   Copyright (C) 1992,93,94,95,96,99,2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1992,93,94,95,96,99,2001,02,13
+     Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
@@ -206,5 +207,21 @@ diskfs_S_file_set_translator (struct protid *cred,
     }
 
   pthread_mutex_unlock (&np->lock);
+
+  if (! error && cred->po->path)
+    error = fshelp_set_active_translator (cred->po->path, active);
+
+  if (! error && active != MACH_PORT_NULL)
+    {
+      mach_port_t old;
+      error = mach_port_request_notification (mach_task_self (), active,
+					      MACH_NOTIFY_DEAD_NAME, 0,
+					      cred->pi.port_right,
+					      MACH_MSG_TYPE_MAKE_SEND_ONCE,
+					      &old);
+      if (old != MACH_PORT_NULL)
+	mach_port_deallocate (mach_task_self (), old);
+    }
+
   return error;
 }
-- 
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