root / hw / 9pfs / codir.c @ bed4352c
History | View | Annotate | Download (2.4 kB)
| 1 |
|
|---|---|
| 2 |
/*
|
| 3 |
* Virtio 9p backend
|
| 4 |
*
|
| 5 |
* Copyright IBM, Corp. 2011
|
| 6 |
*
|
| 7 |
* Authors:
|
| 8 |
* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
|
| 9 |
*
|
| 10 |
* This work is licensed under the terms of the GNU GPL, version 2. See
|
| 11 |
* the COPYING file in the top-level directory.
|
| 12 |
*
|
| 13 |
*/
|
| 14 |
|
| 15 |
#include "fsdev/qemu-fsdev.h" |
| 16 |
#include "qemu-thread.h" |
| 17 |
#include "qemu-coroutine.h" |
| 18 |
#include "virtio-9p-coth.h" |
| 19 |
|
| 20 |
int v9fs_co_readdir(V9fsState *s, V9fsFidState *fidp, struct dirent **dent) |
| 21 |
{
|
| 22 |
int err;
|
| 23 |
|
| 24 |
v9fs_co_run_in_worker( |
| 25 |
{
|
| 26 |
errno = 0;
|
| 27 |
/*FIXME!! need to switch to readdir_r */
|
| 28 |
*dent = s->ops->readdir(&s->ctx, fidp->fs.dir); |
| 29 |
if (!*dent && errno) {
|
| 30 |
err = -errno; |
| 31 |
} else {
|
| 32 |
err = 0;
|
| 33 |
} |
| 34 |
}); |
| 35 |
return err;
|
| 36 |
} |
| 37 |
|
| 38 |
off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp) |
| 39 |
{
|
| 40 |
off_t err; |
| 41 |
|
| 42 |
v9fs_co_run_in_worker( |
| 43 |
{
|
| 44 |
err = s->ops->telldir(&s->ctx, fidp->fs.dir); |
| 45 |
if (err < 0) { |
| 46 |
err = -errno; |
| 47 |
} |
| 48 |
}); |
| 49 |
return err;
|
| 50 |
} |
| 51 |
|
| 52 |
void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)
|
| 53 |
{
|
| 54 |
v9fs_co_run_in_worker( |
| 55 |
{
|
| 56 |
s->ops->seekdir(&s->ctx, fidp->fs.dir, offset); |
| 57 |
}); |
| 58 |
} |
| 59 |
|
| 60 |
void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
|
| 61 |
{
|
| 62 |
v9fs_co_run_in_worker( |
| 63 |
{
|
| 64 |
s->ops->rewinddir(&s->ctx, fidp->fs.dir); |
| 65 |
}); |
| 66 |
} |
| 67 |
|
| 68 |
int v9fs_co_mkdir(V9fsState *s, char *name, mode_t mode, uid_t uid, gid_t gid) |
| 69 |
{
|
| 70 |
int err;
|
| 71 |
FsCred cred; |
| 72 |
|
| 73 |
cred_init(&cred); |
| 74 |
cred.fc_mode = mode; |
| 75 |
cred.fc_uid = uid; |
| 76 |
cred.fc_gid = gid; |
| 77 |
v9fs_co_run_in_worker( |
| 78 |
{
|
| 79 |
err = s->ops->mkdir(&s->ctx, name, &cred); |
| 80 |
if (err < 0) { |
| 81 |
err = -errno; |
| 82 |
} |
| 83 |
}); |
| 84 |
return err;
|
| 85 |
} |
| 86 |
|
| 87 |
int v9fs_co_opendir(V9fsState *s, V9fsFidState *fidp)
|
| 88 |
{
|
| 89 |
int err;
|
| 90 |
|
| 91 |
v9fs_co_run_in_worker( |
| 92 |
{
|
| 93 |
fidp->fs.dir = s->ops->opendir(&s->ctx, fidp->path.data); |
| 94 |
if (!fidp->fs.dir) {
|
| 95 |
err = -errno; |
| 96 |
} else {
|
| 97 |
err = 0;
|
| 98 |
} |
| 99 |
}); |
| 100 |
return err;
|
| 101 |
} |
| 102 |
|
| 103 |
int v9fs_co_closedir(V9fsState *s, V9fsFidState *fidp)
|
| 104 |
{
|
| 105 |
int err;
|
| 106 |
DIR *dir; |
| 107 |
|
| 108 |
dir = fidp->fs.dir; |
| 109 |
v9fs_co_run_in_worker( |
| 110 |
{
|
| 111 |
err = s->ops->closedir(&s->ctx, dir); |
| 112 |
if (err < 0) { |
| 113 |
err = -errno; |
| 114 |
} |
| 115 |
}); |
| 116 |
return err;
|
| 117 |
} |