summaryrefslogtreecommitdiffstats
path: root/xlators/features/locks/src/common.h
blob: 0c0dd22e7ca898a1c9092ab5aa55c60b28e98f3f (plain)
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
/*
  Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
  This file is part of GlusterFS.

  GlusterFS is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published
  by the Free Software Foundation; either version 3 of the License,
  or (at your option) any later version.

  GlusterFS is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see
  <http://www.gnu.org/licenses/>.
*/

#ifndef __COMMON_H__
#define __COMMON_H__

#include "lkowner.h"

#define SET_FLOCK_PID(flock, lock) ((flock)->l_pid = lock->client_pid)
posix_lock_t *
new_posix_lock (struct gf_flock *flock, void *transport, pid_t client_pid,
                gf_lkowner_t *owner, fd_t *fd);

pl_inode_t *
pl_inode_get (xlator_t *this, inode_t *inode);

posix_lock_t *
pl_getlk (pl_inode_t *inode, posix_lock_t *lock);

int
pl_setlk (xlator_t *this, pl_inode_t *inode, posix_lock_t *lock,
          int can_block);

void
grant_blocked_locks (xlator_t *this, pl_inode_t *inode);

void
posix_lock_to_flock (posix_lock_t *lock, struct gf_flock *flock);

int
locks_overlap (posix_lock_t *l1, posix_lock_t *l2);

int
same_owner (posix_lock_t *l1, posix_lock_t *l2);

void __delete_lock (pl_inode_t *, posix_lock_t *);

void __destroy_lock (posix_lock_t *);

pl_dom_list_t *
get_domain (pl_inode_t *pl_inode, const char *volume);

void
grant_blocked_inode_locks (xlator_t *this, pl_inode_t *pl_inode, pl_dom_list_t *dom);

void
__delete_inode_lock (pl_inode_lock_t *lock);

void
__destroy_inode_lock (pl_inode_lock_t *lock);

void
grant_blocked_entry_locks (xlator_t *this, pl_inode_t *pl_inode,
                           pl_entry_lock_t *unlocked, pl_dom_list_t *dom);

void pl_update_refkeeper (xlator_t *this, inode_t *inode);

int32_t
get_inodelk_count (xlator_t *this, inode_t *inode);

int32_t
get_entrylk_count (xlator_t *this, inode_t *inode);

void pl_trace_in (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
                  int cmd, struct gf_flock *flock, const char *domain);

void pl_trace_out (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
                   int cmd, struct gf_flock *flock, int op_ret, int op_errno, const char *domain);

void pl_trace_block (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
                     int cmd, struct gf_flock *flock, const char *domain);

void pl_trace_flush (xlator_t *this, call_frame_t *frame, fd_t *fd);

void entrylk_trace_in (xlator_t *this, call_frame_t *frame, const char *volume,
                       fd_t *fd, loc_t *loc, const char *basename,
                       entrylk_cmd cmd, entrylk_type type);

void entrylk_trace_out (xlator_t *this, call_frame_t *frame, const char *volume,
                        fd_t *fd, loc_t *loc, const char *basename,
                        entrylk_cmd cmd, entrylk_type type,
                        int op_ret, int op_errno);

void entrylk_trace_block (xlator_t *this, call_frame_t *frame, const char *volume,
                          fd_t *fd, loc_t *loc, const char *basename,
                          entrylk_cmd cmd, entrylk_type type);

void
pl_print_verdict (char *str, int size, int op_ret, int op_errno);

void
pl_print_lockee (char *str, int size, fd_t *fd, loc_t *loc);

void
pl_print_locker (char *str, int size, xlator_t *this, call_frame_t *frame);

void
pl_print_inodelk (char *str, int size, int cmd, struct gf_flock *flock, const char *domain);

void
pl_trace_release (xlator_t *this, fd_t *fd);

unsigned long
fd_to_fdnum (fd_t *fd);

fd_t *
fd_from_fdnum (posix_lock_t *lock);

int
pl_reserve_setlk (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *lock,
                  int can_block);
int
reservelks_equal (posix_lock_t *l1, posix_lock_t *l2);

int
pl_verify_reservelk (xlator_t *this, pl_inode_t *pl_inode,
                     posix_lock_t *lock, int can_block);
int
pl_reserve_unlock (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *reqlock);
#endif /* __COMMON_H__ */