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/*
Copyright (c) 2008-2012 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.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#ifndef _QUOTA_H
#define _QUOTA_H
#include "xlator.h"
#include "call-stub.h"
#include "defaults.h"
#include "common-utils.h"
#include "quota-mem-types.h"
#include "glusterfs.h"
#include "compat.h"
#include "logging.h"
#include "dict.h"
#include "stack.h"
#include "common-utils.h"
#include "event.h"
#include "globals.h"
#include "rpcsvc.h"
#include "rpc-clnt.h"
#include "byte-order.h"
#include "glusterfs3-xdr.h"
#include "glusterfs3.h"
#include "xdr-generic.h"
#include "compat-errno.h"
#include "protocol-common.h"
#define DIRTY "dirty"
#define SIZE "size"
#define CONTRIBUTION "contri"
#define VAL_LENGTH 8
#define READDIR_BUF 4096
#ifndef UUID_CANONICAL_FORM_LEN
#define UUID_CANONICAL_FORM_LEN 36
#endif
#define WIND_IF_QUOTAOFF(is_quota_on, label) \
if (!is_quota_on) \
goto label;
#define DID_REACH_LIMIT(lim, prev_size, cur_size) \
((cur_size) >= (lim) && (prev_size) < (lim))
#define QUOTA_SAFE_INCREMENT(lock, var) \
do { \
LOCK (lock); \
var ++; \
UNLOCK (lock); \
} while (0)
#define QUOTA_SAFE_DECREMENT(lock, var) \
do { \
LOCK (lock); \
var --; \
UNLOCK (lock); \
} while (0)
#define QUOTA_ALLOC_OR_GOTO(var, type, label) \
do { \
var = GF_CALLOC (sizeof (type), 1, \
gf_quota_mt_##type); \
if (!var) { \
gf_log ("", GF_LOG_ERROR, \
"out of memory"); \
ret = -1; \
goto label; \
} \
} while (0);
#define QUOTA_STACK_WIND_TAIL(frame, params...) \
do { \
quota_local_t *_local = NULL; \
xlator_t *_this = NULL; \
\
if (frame) { \
_local = frame->local; \
_this = frame->this; \
frame->local = NULL; \
} \
\
STACK_WIND_TAIL (frame, params); \
\
if (_local) \
quota_local_cleanup (_this, _local); \
} while (0)
#define QUOTA_STACK_UNWIND(fop, frame, params...) \
do { \
quota_local_t *_local = NULL; \
xlator_t *_this = NULL; \
if (frame) { \
_local = frame->local; \
_this = frame->this; \
frame->local = NULL; \
} \
STACK_UNWIND_STRICT (fop, frame, params); \
quota_local_cleanup (_this, _local); \
} while (0)
#define QUOTA_FREE_CONTRIBUTION_NODE(_contribution) \
do { \
list_del (&_contribution->contri_list); \
GF_FREE (_contribution); \
} while (0)
#define GET_CONTRI_KEY(var, _vol_name, _gfid, _ret) \
do { \
char _gfid_unparsed[40]; \
if (_gfid != NULL) { \
uuid_unparse (_gfid, _gfid_unparsed); \
_ret = gf_asprintf (var, QUOTA_XATTR_PREFIX \
"%s.%s." CONTRIBUTION, \
_vol_name, _gfid_unparsed); \
} else { \
_ret = gf_asprintf (var, QUOTA_XATTR_PREFIX \
"%s.." CONTRIBUTION, \
_vol_name); \
} \
} while (0)
#define GET_CONTRI_KEY_OR_GOTO(var, _vol_name, _gfid, label) \
do { \
GET_CONTRI_KEY(var, _vol_name, _gfid, ret); \
if (ret == -1) \
goto label; \
} while (0)
#define GET_DIRTY_KEY_OR_GOTO(var, _vol_name, label) \
do { \
ret = gf_asprintf (var, QUOTA_XATTR_PREFIX \
"%s." DIRTY, _vol_name); \
if (ret == -1) \
goto label; \
} while (0)
#define QUOTA_REG_OR_LNK_FILE(ia_type) \
(IA_ISREG (ia_type) || IA_ISLNK (ia_type))
struct quota_dentry {
char *name;
uuid_t par;
struct list_head next;
};
typedef struct quota_dentry quota_dentry_t;
struct quota_inode_ctx {
int64_t size;
int64_t hard_lim;
int64_t soft_lim;
struct iatt buf;
struct list_head parents;
struct timeval tv;
struct timeval prev_log;
gf_lock_t lock;
};
typedef struct quota_inode_ctx quota_inode_ctx_t;
struct quota_limit {
int64_t hard_lim;
int64_t soft_lim_percent;
} __attribute__ ((packed));
typedef struct quota_limit quota_limit_t;
typedef void
(*quota_ancestry_built_t) (struct list_head *parents, inode_t *inode,
int32_t op_ret, int32_t op_errno, void *data);
struct quota_local {
gf_lock_t lock;
uint32_t validate_count;
uint32_t link_count;
loc_t loc;
loc_t oldloc;
loc_t newloc;
loc_t validate_loc;
int64_t delta;
int32_t op_ret;
int32_t op_errno;
int64_t size;
gf_boolean_t skip_check;
char just_validated;
fop_lookup_cbk_t validate_cbk;
inode_t *inode;
call_stub_t *stub;
struct iobref *iobref;
quota_limit_t limit;
int64_t space_available;
quota_ancestry_built_t ancestry_cbk;
void *ancestry_data;
dict_t *xdata;
};
typedef struct quota_local quota_local_t;
struct quota_priv {
uint32_t soft_timeout;
uint32_t hard_timeout;
uint32_t log_timeout;
double default_soft_lim;
gf_boolean_t is_quota_on;
gf_boolean_t consider_statfs;
gf_lock_t lock;
rpc_clnt_prog_t *quota_enforcer;
struct rpcsvc_program *quotad_aggregator;
struct rpc_clnt *rpc_clnt;
rpcsvc_t *rpcsvc;
inode_table_t *itable;
char *volume_uuid;
uint64_t validation_count;
};
typedef struct quota_priv quota_priv_t;
int
quota_enforcer_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
dict_t *xdata, fop_lookup_cbk_t cbk);
struct rpc_clnt *
quota_enforcer_init (xlator_t *this, dict_t *options);
void
quota_log_usage (xlator_t *this, quota_inode_ctx_t *ctx, inode_t *inode,
int64_t delta);
#endif
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