1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
/*
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_H
#define _CLIENT_H
#include <pthread.h>
#include <stdint.h>
#include "rpc-clnt.h"
#include "list.h"
#include "inode.h"
#include "client-mem-types.h"
#include "protocol-common.h"
#include "glusterfs3.h"
#include "fd-lk.h"
/* FIXME: Needs to be defined in a common file */
#define CLIENT_CMD_CONNECT "trusted.glusterfs.client-connect"
#define CLIENT_CMD_DISCONNECT "trusted.glusterfs.client-disconnect"
#define CLIENT_DUMP_LOCKS "trusted.glusterfs.clientlk-dump"
#define GF_MAX_SOCKET_WINDOW_SIZE (1 * GF_UNIT_MB)
#define GF_MIN_SOCKET_WINDOW_SIZE (0)
typedef enum {
GF_LK_HEAL_IN_PROGRESS,
GF_LK_HEAL_DONE,
} lk_heal_state_t;
typedef enum {
DEFAULT_REMOTE_FD = 0,
FALLBACK_TO_ANON_FD = 1
} clnt_remote_fd_flags_t;
#define CLIENT_GET_REMOTE_FD(xl, fd, flags, remote_fd, op_errno, label) \
do { \
int _ret = 0; \
_ret = client_get_remote_fd (xl, fd, flags, &remote_fd);\
if (_ret < 0) { \
op_errno = errno; \
goto label; \
} \
if (remote_fd == -1) { \
gf_log (xl->name, GF_LOG_WARNING, " (%s) " \
"remote_fd is -1. EBADFD", \
uuid_utoa (fd->inode->gfid)); \
op_errno = EBADFD; \
goto label; \
} \
} while (0)
#define CLIENT_STACK_UNWIND(op, frame, params ...) do { \
clnt_local_t *__local = frame->local; \
frame->local = NULL; \
STACK_UNWIND_STRICT (op, frame, params); \
client_local_wipe (__local); \
} while (0)
struct clnt_options {
char *remote_subvolume;
int ping_timeout;
};
typedef struct clnt_conf {
struct rpc_clnt *rpc;
struct clnt_options opt;
struct rpc_clnt_config rpc_conf;
struct list_head saved_fds;
pthread_mutex_t lock;
int connecting;
int connected;
rpc_clnt_prog_t *fops;
rpc_clnt_prog_t *mgmt;
rpc_clnt_prog_t *handshake;
rpc_clnt_prog_t *dump;
uint64_t reopen_fd_count; /* Count of fds reopened after a
connection is established */
gf_lock_t rec_lock;
int skip_notify;
int last_sent_event; /* Flag used to make sure we are
not repeating the same event
which was sent earlier */
char portmap_err_logged; /* flag used to prevent
excessive logging */
char disconnect_err_logged; /* flag used to prevent
excessive disconnect
logging */
char need_different_port; /* flag used to change the
portmap path in case of
'tcp,rdma' on server */
gf_boolean_t lk_heal;
uint16_t lk_version; /* this variable is used to distinguish
client-server transaction while
performing lock healing */
struct timespec grace_ts;
gf_timer_t *grace_timer;
gf_boolean_t grace_timer_needed; /* The state of this flag will
be used to decide whether
a new grace-timer must be
registered or not. False
means dont register, true
means register */
char parent_down;
gf_boolean_t quick_reconnect; /* When reconnecting after
portmap query, do not let
the reconnection happen after
the usual 3-second wait
*/
gf_boolean_t filter_o_direct; /* if set, filter O_DIRECT from
the flags list of open() */
/* set volume is the op which results in creating/re-using
* the conn-id and is called once per connection, this remembers
* how manytimes set_volume is called
*/
uint64_t setvol_count;
gf_boolean_t send_gids; /* let the server resolve gids */
} clnt_conf_t;
typedef struct _client_fd_ctx {
struct list_head sfd_pos; /* Stores the reference to this
fd's position in the saved_fds list.
*/
int64_t remote_fd;
char is_dir;
char released;
int32_t flags;
fd_lk_ctx_t *lk_ctx;
pthread_mutex_t mutex;
lk_heal_state_t lk_heal_state;
uuid_t gfid;
void (*reopen_done) (struct _client_fd_ctx*, xlator_t *);
struct list_head lock_list; /* List of all granted locks on this fd */
int32_t reopen_attempts;
} clnt_fd_ctx_t;
typedef struct _client_posix_lock {
fd_t *fd; /* The fd on which the lk operation was made */
struct gf_flock user_flock; /* the flock supplied by the user */
off_t fl_start;
off_t fl_end;
short fl_type;
int32_t cmd; /* the cmd for the lock call */
gf_lkowner_t owner; /* lock owner from fuse */
struct list_head list; /* reference used to add to the fdctx list of locks */
} client_posix_lock_t;
typedef struct client_local {
loc_t loc;
loc_t loc2;
fd_t *fd;
clnt_fd_ctx_t *fdctx;
uint32_t flags;
struct iobref *iobref;
client_posix_lock_t *client_lock;
gf_lkowner_t owner;
int32_t cmd;
struct list_head lock_list;
pthread_mutex_t mutex;
char *name;
gf_boolean_t attempt_reopen;
} clnt_local_t;
typedef struct client_args {
loc_t *loc;
fd_t *fd;
const char *linkname;
struct iobref *iobref;
struct iovec *vector;
dict_t *xattr;
struct iatt *stbuf;
loc_t *oldloc;
loc_t *newloc;
const char *name;
struct gf_flock *flock;
const char *volume;
const char *basename;
off_t offset;
int32_t mask;
int32_t cmd;
size_t size;
mode_t mode;
dev_t rdev;
int32_t flags;
int32_t count;
int32_t datasync;
entrylk_cmd cmd_entrylk;
entrylk_type type;
gf_xattrop_flags_t optype;
int32_t valid;
int32_t len;
mode_t umask;
dict_t *xdata;
} clnt_args_t;
typedef ssize_t (*gfs_serialize_t) (struct iovec outmsg, void *args);
clnt_fd_ctx_t *this_fd_get_ctx (fd_t *file, xlator_t *this);
clnt_fd_ctx_t *this_fd_del_ctx (fd_t *file, xlator_t *this);
void this_fd_set_ctx (fd_t *file, xlator_t *this, loc_t *loc,
clnt_fd_ctx_t *ctx);
int client_local_wipe (clnt_local_t *local);
int client_submit_request (xlator_t *this, void *req,
call_frame_t *frame, rpc_clnt_prog_t *prog,
int procnum, fop_cbk_fn_t cbk,
struct iobref *iobref,
struct iovec *rsphdr, int rsphdr_count,
struct iovec *rsp_payload, int rsp_count,
struct iobref *rsp_iobref, xdrproc_t xdrproc);
int unserialize_rsp_dirent (struct gfs3_readdir_rsp *rsp, gf_dirent_t *entries);
int unserialize_rsp_direntp (xlator_t *this, fd_t *fd,
struct gfs3_readdirp_rsp *rsp, gf_dirent_t *entries);
int clnt_readdir_rsp_cleanup (gfs3_readdir_rsp *rsp);
int clnt_readdirp_rsp_cleanup (gfs3_readdirp_rsp *rsp);
int client_attempt_lock_recovery (xlator_t *this, clnt_fd_ctx_t *fdctx);
int32_t delete_granted_locks_owner (fd_t *fd, gf_lkowner_t *owner);
int client_add_lock_for_recovery (fd_t *fd, struct gf_flock *flock,
gf_lkowner_t *owner, int32_t cmd);
int32_t delete_granted_locks_fd (clnt_fd_ctx_t *fdctx);
int32_t client_cmd_to_gf_cmd (int32_t cmd, int32_t *gf_cmd);
void client_save_number_fds (clnt_conf_t *conf, int count);
int dump_client_locks (inode_t *inode);
int client_notify_parents_child_up (xlator_t *this);
int32_t is_client_dump_locks_cmd (char *name);
int32_t client_dump_locks (char *name, inode_t *inode,
dict_t *dict);
int client_fdctx_destroy (xlator_t *this, clnt_fd_ctx_t *fdctx);
uint32_t client_get_lk_ver (clnt_conf_t *conf);
int32_t client_type_to_gf_type (short l_type);
int client_mark_fd_bad (xlator_t *this);
int client_set_lk_version (xlator_t *this);
int client_fd_lk_list_empty (fd_lk_ctx_t *lk_ctx, gf_boolean_t use_try_lock);
void client_default_reopen_done (clnt_fd_ctx_t *fdctx, xlator_t *this);
void client_attempt_reopen (fd_t *fd, xlator_t *this);
int client_get_remote_fd (xlator_t *this, fd_t *fd, int flags,
int64_t *remote_fd);
int client_fd_fop_prepare_local (call_frame_t *frame, fd_t *fd,
int64_t remote_fd);
gf_boolean_t
__is_fd_reopen_in_progress (clnt_fd_ctx_t *fdctx);
#endif /* !_CLIENT_H */
|
