/*
   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.
*/

#include <glusterfs/xlator.h>
#include <glusterfs/defaults.h>

#include "meta-mem-types.h"
#include "meta.h"
#include "meta-hooks.h"

static int
dict_key_add(dict_t *dict, char *key, data_t *value, void *data)
{
    struct meta_dirent **direntp = data;

    (*direntp)->name = gf_strdup(key);
    (*direntp)->type = IA_IFREG;
    (*direntp)->hook = meta_option_file_hook;

    (*direntp)++;
    return 0;
}

static int
options_dir_fill(xlator_t *this, inode_t *inode, struct meta_dirent **dp)
{
    struct meta_dirent *dirent = NULL;
    struct meta_dirent *direntp = NULL;
    xlator_t *xl = NULL;

    xl = meta_ctx_get(inode, this);

    dirent = GF_CALLOC(sizeof(*dirent), xl->options->count,
                       gf_meta_mt_dirents_t);
    if (!dirent)
        return -1;

    direntp = dirent;

    dict_foreach(xl->options, dict_key_add, &direntp);

    *dp = dirent;

    return xl->options->count;
}

static struct meta_ops options_dir_ops = {.dir_fill = options_dir_fill};

int
meta_options_dir_hook(call_frame_t *frame, xlator_t *this, loc_t *loc,
                      dict_t *xdata)
{
    meta_ctx_set(loc->inode, this, meta_ctx_get(loc->parent, this));

    meta_ops_set(loc->inode, this, &options_dir_ops);

    return 0;
}