From 890f987c15029d7e29f7deea0bba0b8d4ecaeaeb Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Tue, 16 Jul 2013 10:51:22 +0200
Subject: Add the necessary infrastructure to serve passive translators

* netfs.c (netfs_get_translator): New function.
* procfs.c (procfs_get_translator): Likewise.
* procfs.h (struct procfs_node_ops): New field get_translator.
(procfs_get_translator): New function declaration.
---
 netfs.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'netfs.c')

diff --git a/netfs.c b/netfs.c
index c139d11..276c57c 100644
--- a/netfs.c
+++ b/netfs.c
@@ -230,6 +230,17 @@ void netfs_node_norefs (struct node *np)
   pthread_spin_lock (&netfs_node_refcnt_lock);
 }
 
+/* The user may define this function (but should define it together
+   with netfs_set_translator).  For locked node NODE with S_IPTRANS
+   set in its mode, look up the name of its translator.  Store the
+   name into newly malloced storage, and return it in *ARGZ; set
+   *ARGZ_LEN to the total length.  */
+error_t netfs_get_translator (struct node *np, char **argz,
+			      size_t *argz_len)
+{
+  return procfs_get_translator (np, argz, argz_len);
+}
+
 
 /* Libnetfs callbacks managed with libfshelp. */
 
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