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
|
/*
* Copyright (C) 2018 Facebook
*
* This file is part of libbtrfsutil.
*
* libbtrfsutil is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libbtrfsutil 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include "btrfsutil_internal.h"
PUBLIC enum btrfs_util_error btrfs_util_sync(const char *path)
{
enum btrfs_util_error err;
int fd;
fd = open(path, O_RDONLY);
if (fd == -1)
return BTRFS_UTIL_ERROR_OPEN_FAILED;
err = btrfs_util_sync_fd(fd);
SAVE_ERRNO_AND_CLOSE(fd);
return err;
}
PUBLIC enum btrfs_util_error btrfs_util_sync_fd(int fd)
{
int ret;
ret = ioctl(fd, BTRFS_IOC_SYNC, NULL);
if (ret == -1)
return BTRFS_UTIL_ERROR_SYNC_FAILED;
return BTRFS_UTIL_OK;
}
PUBLIC enum btrfs_util_error btrfs_util_start_sync(const char *path,
uint64_t *transid)
{
enum btrfs_util_error err;
int fd;
fd = open(path, O_RDONLY);
if (fd == -1)
return BTRFS_UTIL_ERROR_OPEN_FAILED;
err = btrfs_util_start_sync_fd(fd, transid);
SAVE_ERRNO_AND_CLOSE(fd);
return err;
}
PUBLIC enum btrfs_util_error btrfs_util_start_sync_fd(int fd, uint64_t *transid)
{
int ret;
ret = ioctl(fd, BTRFS_IOC_START_SYNC, transid);
if (ret == -1)
return BTRFS_UTIL_ERROR_START_SYNC_FAILED;
return BTRFS_UTIL_OK;
}
PUBLIC enum btrfs_util_error btrfs_util_wait_sync(const char *path,
uint64_t transid)
{
enum btrfs_util_error err;
int fd;
fd = open(path, O_RDONLY);
if (fd == -1)
return BTRFS_UTIL_ERROR_OPEN_FAILED;
err = btrfs_util_wait_sync_fd(fd, transid);
SAVE_ERRNO_AND_CLOSE(fd);
return err;
}
PUBLIC enum btrfs_util_error btrfs_util_wait_sync_fd(int fd, uint64_t transid)
{
int ret;
ret = ioctl(fd, BTRFS_IOC_WAIT_SYNC, &transid);
if (ret == -1)
return BTRFS_UTIL_ERROR_WAIT_SYNC_FAILED;
return BTRFS_UTIL_OK;
}
|