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[PATCH 12/16] libnetfs: add fsys_get_source
From: |
Justus Winter |
Subject: |
[PATCH 12/16] libnetfs: add fsys_get_source |
Date: |
Tue, 30 Jul 2013 11:59:20 +0200 |
Add a user overridable function netfs_get_source with a default
implementation returning EOPNOTSUPP. Add a server function for
fsys-get-source.
* libnetfs/Makefile: Add fsys-get-source.c and get-source.c
* libnetfs/netfs.h: Add netfs_get_source.
* libnetfs/fsys-get-source.c: New file.
* libnetfs/get-source.c: Likewise.
---
libnetfs/Makefile | 5 +++--
libnetfs/fsys-get-source.c | 34 ++++++++++++++++++++++++++++++++++
libnetfs/get-source.c | 28 ++++++++++++++++++++++++++++
libnetfs/netfs.h | 8 +++++++-
4 files changed, 72 insertions(+), 3 deletions(-)
create mode 100644 libnetfs/fsys-get-source.c
create mode 100644 libnetfs/get-source.c
diff --git a/libnetfs/Makefile b/libnetfs/Makefile
index f456740..1a71b49 100644
--- a/libnetfs/Makefile
+++ b/libnetfs/Makefile
@@ -34,7 +34,8 @@ FSSRCS= dir-link.c dir-lookup.c dir-mkdir.c dir-mkfile.c \
file-get-translator.c file-getcontrol.c file-getlinknode.c \
file-lock-stat.c file-lock.c file-set-size.c \
file-set-translator.c file-statfs.c file-sync.c file-syncfs.c \
- file-utimes.c file-reparent.c fsstubs.c file-get-transcntl.c
+ file-utimes.c file-reparent.c fsstubs.c file-get-transcntl.c \
+ get-source.c
IOSRCS= io-read.c io-readable.c io-seek.c io-write.c io-stat.c
io-async.c \
io-set-all-openmodes.c io-get-openmodes.c io-set-some-openmodes.c \
@@ -44,7 +45,7 @@ IOSRCS= io-read.c io-readable.c io-seek.c io-write.c
io-stat.c io-async.c \
io-version.c
FSYSSRCS= fsys-syncfs.c fsys-getroot.c fsys-get-options.c fsys-set-options.c \
- fsys-goaway.c fsysstubs.c fsys-get-children.c
+ fsys-goaway.c fsysstubs.c fsys-get-children.c fsys-get-source.c
IFSOCKSRCS=
OTHERSRCS= drop-node.c init-init.c make-node.c make-peropen.c make-protid.c \
diff --git a/libnetfs/fsys-get-source.c b/libnetfs/fsys-get-source.c
new file mode 100644
index 0000000..6143d10
--- /dev/null
+++ b/libnetfs/fsys-get-source.c
@@ -0,0 +1,34 @@
+/* fsys_get_source
+
+ Copyright (C) 2013 Free Software Foundation, Inc.
+
+ Written by Justus Winter <4winter@informatik.uni-hamburg.de>
+
+ This file is part of the GNU Hurd.
+
+ The GNU Hurd is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ The GNU Hurd is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "priv.h"
+#include "fsys_S.h"
+
+/* Return information about the source of the receiving
+ filesystem. */
+error_t
+netfs_S_fsys_get_source (fsys_t server,
+ mach_port_t reply,
+ mach_msg_type_name_t replyPoly,
+ char *source)
+{
+ return netfs_get_source (source);
+}
diff --git a/libnetfs/get-source.c b/libnetfs/get-source.c
new file mode 100644
index 0000000..71a9639
--- /dev/null
+++ b/libnetfs/get-source.c
@@ -0,0 +1,28 @@
+/* Default version of netfs_get_source
+
+ Copyright (C) 2013 Free Software Foundation, Inc.
+
+ Written by Justus Winter <4winter@informatik.uni-hamburg.de>
+
+ This file is part of the GNU Hurd.
+
+ The GNU Hurd is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ The GNU Hurd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "priv.h"
+
+error_t
+netfs_get_source (char *source)
+{
+ return EOPNOTSUPP;
+}
diff --git a/libnetfs/netfs.h b/libnetfs/netfs.h
index 2b9454a..e10ccae 100644
--- a/libnetfs/netfs.h
+++ b/libnetfs/netfs.h
@@ -1,6 +1,6 @@
/*
- Copyright (C) 1994,95,96,97,99,2000,02 Free Software Foundation, Inc.
+ Copyright (C) 1994,95,96,97,99,2000,02,13 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
@@ -313,6 +313,12 @@ error_t netfs_file_get_storage_info (struct iouser *cred,
mach_msg_type_number_t *num_offsets,
char **data,
mach_msg_type_number_t *data_len);
+
+/* The user may define this function. The function must set source to
+ the source device of the filesystem. The function may return an
+ EOPNOTSUPP to indicate that the concept of a source device is not
+ applicable. The default function always returns EOPNOTSUPP. */
+error_t netfs_get_source (char *source);
/* Option parsing */
--
1.7.10.4
- [PATCH 06/16] libdiskfs: add fsys_get_children, (continued)
- [PATCH 06/16] libdiskfs: add fsys_get_children, Justus Winter, 2013/07/30
- [PATCH 08/16] libtrivfs: add fsys_get_children, Justus Winter, 2013/07/30
- [PATCH 07/16] libnetfs: add fsys_get_children, Justus Winter, 2013/07/30
- [PATCH 09/16] trans/symlink.c: add fsys_get_children, Justus Winter, 2013/07/30
- [PATCH 10/16] hurd: add fsys_get_children, Justus Winter, 2013/07/30
[PATCH 11/16] libdiskfs: add fsys_get_source, Justus Winter, 2013/07/30
[PATCH 12/16] libnetfs: add fsys_get_source,
Justus Winter <=
[PATCH 14/16] trans/symlink.c: add fsys_get_source, Justus Winter, 2013/07/30
[PATCH 13/16] libtrivfs: add fsys_get_source, Justus Winter, 2013/07/30
[PATCH 15/16] hurd: add fsys_get_source, Justus Winter, 2013/07/30
[PATCH 16/16] trans: add mtab translator, Justus Winter, 2013/07/30