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-rw-r--r--xlators/meta/src/plugins/volfile-file.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/xlators/meta/src/plugins/volfile-file.c b/xlators/meta/src/plugins/volfile-file.c
new file mode 100644
index 00000000000..899285763e0
--- /dev/null
+++ b/xlators/meta/src/plugins/volfile-file.c
@@ -0,0 +1,91 @@
+/*
+ Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+#include "defaults.h"
+
+#include "meta-mem-types.h"
+#include "meta.h"
+#include "strfd.h"
+
+
+
+static int
+xldump_options (dict_t *this, char *key, data_t *value, void *strfd)
+{
+ strprintf (strfd, " option %s %s\n", key, value->data);
+ return 0;
+}
+
+
+static void
+xldump_subvolumes (xlator_t *this, void *strfd)
+{
+ xlator_list_t *subv = NULL;
+
+ if (!this->children)
+ return;
+
+ strprintf (strfd, " subvolumes");
+
+ for (subv = this->children; subv; subv= subv->next)
+ strprintf (strfd, " %s", subv->xlator->name);
+
+ strprintf (strfd, "\n");
+}
+
+
+static void
+xldump (xlator_t *each, void *strfd)
+{
+ strprintf (strfd, "volume %s\n", each->name);
+ strprintf (strfd, " type %s\n", each->type);
+ dict_foreach (each->options, xldump_options, strfd);
+
+ xldump_subvolumes (each, strfd);
+
+ strprintf (strfd, "end-volume\n");
+ strprintf (strfd, "\n");
+}
+
+
+static int
+volfile_file_fill (xlator_t *this, inode_t *file, strfd_t *strfd)
+{
+ glusterfs_graph_t *graph = NULL;
+
+ graph = meta_ctx_get (file, this);
+
+ xlator_foreach_depth_first (graph->top, xldump, strfd);
+
+ return strfd->size;
+}
+
+
+static struct meta_ops volfile_file_ops = {
+ .file_fill = volfile_file_fill,
+};
+
+
+int
+meta_volfile_file_hook (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ dict_t *xdata)
+{
+ meta_ops_set (loc->inode, this, &volfile_file_ops);
+
+ meta_ctx_set (loc->inode, this, meta_ctx_get (loc->parent, this));
+
+ return 0;
+}