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/*
Copyright (c) 2012-2014 DataLab, s.l. <http://www.datalab.es>
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 __EC_H__
#define __EC_H__
#include "xlator.h"
#include "timer.h"
#include "ec-heald.h"
#include "libxlator.h"
#define EC_XATTR_PREFIX "trusted.ec."
#define EC_XATTR_CONFIG EC_XATTR_PREFIX"config"
#define EC_XATTR_SIZE EC_XATTR_PREFIX"size"
#define EC_XATTR_VERSION EC_XATTR_PREFIX"version"
#define EC_XATTR_HEAL EC_XATTR_PREFIX"heal"
#define EC_XATTR_DIRTY EC_XATTR_PREFIX"dirty"
#define EC_VERSION_SIZE 2
#define EC_SHD_INODE_LRU_LIMIT 10
typedef enum {
EC_ROUND_ROBIN,
EC_GFID_HASH,
EC_READ_POLICY_MAX
} ec_read_policy_t;
struct _ec
{
xlator_t * xl;
int32_t healers;
int32_t heal_waiters;
int32_t nodes;
int32_t bits_for_nodes;
int32_t fragments;
int32_t redundancy;
uint32_t fragment_size;
uint32_t stripe_size;
int32_t up;
uint32_t idx;
uint32_t xl_up_count;
uintptr_t xl_up;
uint32_t xl_notify_count;
uintptr_t xl_notify;
uintptr_t node_mask;
xlator_t ** xl_list;
gf_lock_t lock;
gf_timer_t * timer;
gf_boolean_t shutdown;
uint32_t background_heals;
uint32_t heal_wait_qlen;
struct list_head pending_fops;
struct list_head heal_waiting;
struct list_head healing;
struct mem_pool * fop_pool;
struct mem_pool * cbk_pool;
struct mem_pool * lock_pool;
ec_self_heald_t shd;
char vol_uuid[UUID_SIZE + 1];
dict_t *leaf_to_subvolid;
ec_read_policy_t read_policy;
};
void ec_pending_fops_completed(ec_t *ec);
#endif /* __EC_H__ */
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