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
|
/*
Copyright (c) 2007-2009 Z RESEARCH, Inc. <http://www.zresearch.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 _FD_H
#define _FD_H
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "list.h"
#include <sys/types.h>
#include <unistd.h>
#include "glusterfs.h"
#include "locking.h"
struct _inode;
struct _dict;
struct _fd_ctx {
uint64_t key;
uint64_t value;
};
struct _fd {
pid_t pid;
int32_t flags;
int32_t refcount;
struct list_head inode_list;
struct _inode *inode;
struct _dict *ctx;
gf_lock_t lock; /* used ONLY for manipulating
'struct _fd_ctx' array (_ctx).*/
struct _fd_ctx *_ctx;
};
typedef struct _fd fd_t;
struct _fdtable {
int refcount;
uint32_t max_fds;
pthread_mutex_t lock;
fd_t **fds;
};
typedef struct _fdtable fdtable_t;
#include "logging.h"
#include "xlator.h"
inline void
gf_fd_put (fdtable_t *fdtable, int32_t fd);
fd_t *
gf_fd_fdptr_get (fdtable_t *fdtable, int64_t fd);
fdtable_t *
gf_fd_fdtable_alloc (void);
int32_t
gf_fd_unused_get (fdtable_t *fdtable, fd_t *fdptr);
int32_t
gf_fd_unused_get2 (fdtable_t *fdtable, fd_t *fdptr, int32_t fd);
fd_t **
gf_fd_fdtable_get_all_fds (fdtable_t *fdtable, uint32_t *count);
void
gf_fd_fdtable_destroy (fdtable_t *fdtable);
fd_t *
fd_ref (fd_t *fd);
void
fd_unref (fd_t *fd);
fd_t *
fd_create (struct _inode *inode, pid_t pid);
fd_t *
fd_lookup (struct _inode *inode, pid_t pid);
uint8_t
fd_list_empty (struct _inode *inode);
fd_t *
fd_bind (fd_t *fd);
int
fd_ctx_set (fd_t *fd, xlator_t *xlator, uint64_t value);
int
fd_ctx_get (fd_t *fd, xlator_t *xlator, uint64_t *value);
int
fd_ctx_del (fd_t *fd, xlator_t *xlator, uint64_t *value);
int
__fd_ctx_set (fd_t *fd, xlator_t *xlator, uint64_t value);
int
__fd_ctx_get (fd_t *fd, xlator_t *xlator, uint64_t *value);
int
__fd_ctx_del (fd_t *fd, xlator_t *xlator, uint64_t *value);
#endif /* _FD_H */
|
