/*
  Copyright (c) 2012 DataLab, s.l. <http://www.datalab.es>

  This file is part of the cluster/ec translator for GlusterFS.

  The cluster/ec translator for 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.

  The cluster/ec translator for 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 the cluster/ec translator for GlusterFS. If not, see
  <http://www.gnu.org/licenses/>.
*/

#ifndef __EC_HELPERS_H__
#define __EC_HELPERS_H__

#include "ec-data.h"

const char * ec_bin(char * str, size_t size, uint64_t value, int32_t digits);
const char * ec_fop_name(int32_t id);
void ec_trace(const char * event, ec_fop_data_t * fop, const char * fmt, ...);
uint64_t ec_itransform(ec_t * ec, int32_t idx, uint64_t offset);
uint64_t ec_deitransform(ec_t * ec, int32_t * idx, uint64_t offset);
int32_t ec_bits_count(uint64_t n);
int32_t ec_bits_index(uint64_t n);
int32_t ec_bits_consume(uint64_t * n);
size_t ec_iov_copy_to(void * dst, struct iovec * vector, int32_t count,
                      off_t offset, size_t size);

int32_t ec_dict_set_number(dict_t * dict, char * key, uint64_t value);
int32_t ec_dict_del_number(dict_t * dict, char * key, uint64_t * value);

int32_t ec_loc_parent(xlator_t * xl, loc_t * loc, loc_t * parent,
                      char ** name);
int32_t ec_loc_prepare(xlator_t * xl, loc_t * loc, inode_t * inode,
                       struct iatt * iatt);

int32_t ec_loc_from_fd(xlator_t * xl, loc_t * loc, fd_t * fd);
int32_t ec_loc_from_loc(xlator_t * xl, loc_t * dst, loc_t * src);

void ec_owner_set(call_frame_t * frame, void * owner);
void ec_owner_copy(call_frame_t * frame, gf_lkowner_t * owner);

ec_inode_t * __ec_inode_get(inode_t * inode, xlator_t * xl);
ec_inode_t * ec_inode_get(inode_t * inode, xlator_t * xl);
ec_fd_t * __ec_fd_get(fd_t * fd, xlator_t * xl);
ec_fd_t * ec_fd_get(fd_t * fd, xlator_t * xl);

size_t ec_adjust_offset(ec_t * ec, off_t * offset, int32_t scale);
size_t ec_adjust_size(ec_t * ec, size_t size, int32_t scale);

#endif /* __EC_HELPERS_H__ */