btrfs-progs: introduce new send-dump object

Introduce send-dump.[ch] which implements a new btrfs_send_ops to
exam and output all operations inside a send stream.

It has a better output format than the old and no longer compilable
send-test tool, but still tries to be script friendly.

Provides the basis for later "inspect-internal dump-send" command.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ drop escaping call from __print_dump for now, drop gcc warning tweaks,
  replace empty format strings with NULL ]
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/send-dump.h b/send-dump.h
new file mode 100644
index 00000000..06a61085
--- /dev/null
+++ b/send-dump.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2016 Fujitsu.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program 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 this program.
+ */
+
+#ifndef __BTRFS_SEND_DUMP_H__
+#define __BTRFS_SEND_DUMP_H__
+
+#include <linux/limits.h>
+
+struct btrfs_dump_send_args {
+	char full_subvol_path[PATH_MAX];
+	char root_path[PATH_MAX];
+};
+
+extern struct btrfs_send_ops btrfs_print_send_ops;
+
+#endif