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Diffstat (limited to 'libglusterfs/src/client_t.h')
| -rw-r--r-- | libglusterfs/src/client_t.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/libglusterfs/src/client_t.h b/libglusterfs/src/client_t.h new file mode 100644 index 00000000..7b3fcf0d --- /dev/null +++ b/libglusterfs/src/client_t.h @@ -0,0 +1,168 @@ +/* + 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 */ |