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/*
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_dict_set_config(dict_t * dict, char * key, ec_config_t * config);
int32_t ec_dict_del_config(dict_t * dict, char * key, ec_config_t * config);
int32_t ec_loc_parent(xlator_t *xl, loc_t *loc, loc_t *parent);
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);
uint32_t ec_adjust_offset(ec_t * ec, off_t * offset, int32_t scale);
uint64_t ec_adjust_size(ec_t * ec, uint64_t size, int32_t scale);
static inline int32_t ec_is_power_of_2(uint32_t value)
{
return (value != 0) && ((value & (value - 1)) == 0);
}
#endif /* __EC_HELPERS_H__ */
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