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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 _CLIENT_T_H
#define _CLIENT_T_H
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "glusterfs.h"
#include "locking.h" /* for gf_lock_t, not included by glusterfs.h */
struct client_ctx {
union {
uint64_t key;
void *xl_key;
};
union {
uint64_t value;
void *ptr1;
};
};
struct _client_t {
struct {
/* ctx for .../xlators/protocol/server */
gf_lock_t fdtable_lock;
fdtable_t *fdtable;
char *client_uid;
struct _gf_timer *grace_timer;
uint32_t lk_version;
struct {
int flavour;
size_t len;
char *data;
} auth;
} server_ctx;
struct {
/* ctx for .../xlators/features/locks */
gf_lock_t ltable_lock;
struct _lock_table *ltable;
} locks_ctx;
struct {
/* e.g. hekafs uidmap can stash stuff here */
gf_lock_t lock;
unsigned short count;
struct client_ctx *ctx;
} scratch_ctx;
struct {
gf_lock_t lock;
volatile int bind;
volatile int count;
} ref;
xlator_t *bound_xl;
xlator_t *this;
int tbl_index;
};
typedef struct _client_t client_t;
struct client_table_entry {
client_t *client;
int next_free;
};
typedef struct client_table_entry cliententry_t;
struct _clienttable {
unsigned int max_clients;
gf_lock_t lock;
cliententry_t *cliententries;
int first_free;
};
typedef struct _clienttable clienttable_t;
#define GF_CLIENTTABLE_INITIAL_SIZE 32
/* Signifies no more entries in the client table. */
#define GF_CLIENTTABLE_END -1
/* This is used to invalidate
* the next_free value in an cliententry that has been allocated
*/
#define GF_CLIENTENTRY_ALLOCATED -2
client_t *
gf_client_get (xlator_t *this, rpcsvc_auth_data_t *cred, char *client_uid);
void
gf_client_put (client_t *client, gf_boolean_t *detached);
clienttable_t *
gf_clienttable_alloc (void);
void
gf_client_clienttable_destroy (clienttable_t *clienttable);
client_t *
gf_client_ref (client_t *client);
void
gf_client_unref (client_t *client);
int
gf_client_dump_fdtable_to_dict (xlator_t *this, dict_t *dict);
int
gf_client_dump_fdtable (xlator_t *this);
int
gf_client_dump_inodes_to_dict (xlator_t *this, dict_t *dict);
int
gf_client_dump_inodes (xlator_t *this);
int
client_ctx_set (client_t *client, xlator_t *xlator, uint64_t value);
int
client_ctx_get (client_t *client, xlator_t *xlator, uint64_t *value);
int
client_ctx_del (client_t *client, xlator_t *xlator, uint64_t *value);
int
_client_ctx_set (client_t *client, xlator_t *xlator, uint64_t value);
int
_client_ctx_get (client_t *client, xlator_t *xlator, uint64_t *value);
int
_client_ctx_del (client_t *client, xlator_t *xlator, uint64_t *value);
void
client_ctx_dump (client_t *client, char *prefix);
int
gf_client_dump_fdtables_to_dict (xlator_t *this, dict_t *dict);
int
gf_client_dump_fdtables (xlator_t *this);
int
gf_client_dump_inodes_to_dict (xlator_t *this, dict_t *dict);
int
gf_client_dump_inodes (xlator_t *this);
#endif /* _CLIENT_T_H */
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