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-rw-r--r--xlators/meta/src/misc.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/xlators/meta/src/misc.c b/xlators/meta/src/misc.c
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+++ b/xlators/meta/src/misc.c
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+/*
+ Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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 3 of the License,
+ or (at your option) any later version.
+
+ GlusterFS 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. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#include <unistd.h>
+#include <sys/uio.h>
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "xlator.h"
+#include "meta.h"
+
+#define min(x,y) ((x) < (y) ? (x) : (y))
+
+/* /.meta/version */
+static const char *version_str = PACKAGE_NAME " " PACKAGE_VERSION "\n";
+
+int32_t
+meta_version_readv (call_frame_t *frame, xlator_t *this,
+ dict_t *fd, size_t size, off_t offset)
+{
+ static int version_size;
+ version_size = strlen (version_str);
+
+ struct iovec vec;
+ vec.iov_base = version_str + offset;
+ vec.iov_len = min (version_size - offset, size);
+
+ STACK_UNWIND (frame, vec.iov_len, 0, &vec, 1);
+ return 0;
+}
+
+int32_t
+meta_version_getattr (call_frame_t *frame,
+ xlator_t *this,
+ const char *path)
+{
+ meta_private_t *priv = (meta_private_t *) this->private;
+ meta_dirent_t *root = priv->tree;
+ meta_dirent_t *file = lookup_meta_entry (root, path, NULL);
+ file->stbuf->st_size = strlen (version_str);
+ STACK_UNWIND (frame, 0, 0, file->stbuf);
+}
+
+struct xlator_fops meta_version_fops = {
+ .readv = meta_version_readv,
+ .getattr = meta_version_getattr
+};
+