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
|
/*
* Virtio 9p backend
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#include "fsdev/qemu-fsdev.h"
#include "qemu-thread.h"
#include "qemu-coroutine.h"
#include "virtio-9p-coth.h"
int v9fs_co_readdir(V9fsState *s, V9fsFidState *fidp, struct dirent **dent)
{
int err;
v9fs_co_run_in_worker(
{
errno = 0;
/*FIXME!! need to switch to readdir_r */
*dent = s->ops->readdir(&s->ctx, fidp->fs.dir);
if (!*dent && errno) {
err = -errno;
} else {
err = 0;
}
});
return err;
}
off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
{
off_t err;
v9fs_co_run_in_worker(
{
err = s->ops->telldir(&s->ctx, fidp->fs.dir);
if (err < 0) {
err = -errno;
}
});
return err;
}
void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)
{
v9fs_co_run_in_worker(
{
s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);
});
}
void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
{
v9fs_co_run_in_worker(
{
s->ops->rewinddir(&s->ctx, fidp->fs.dir);
});
}
int v9fs_co_mkdir(V9fsState *s, char *name, mode_t mode, uid_t uid, gid_t gid)
{
int err;
FsCred cred;
cred_init(&cred);
cred.fc_mode = mode;
cred.fc_uid = uid;
cred.fc_gid = gid;
v9fs_co_run_in_worker(
{
err = s->ops->mkdir(&s->ctx, name, &cred);
if (err < 0) {
err = -errno;
}
});
return err;
}
int v9fs_co_opendir(V9fsState *s, V9fsFidState *fidp)
{
int err;
v9fs_co_run_in_worker(
{
fidp->fs.dir = s->ops->opendir(&s->ctx, fidp->path.data);
if (!fidp->fs.dir) {
err = -errno;
} else {
err = 0;
}
});
return err;
}
|
