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hw/9pfs: Update v9fs_stat to use coroutines 

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2011-05-07 18:29:24 +05:30
parent 36f8981f01
commit d8e0c29e40
1 changed files with 21 additions and 41 deletions
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62
hw/9pfs/virtio-9p.c
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@ -1169,56 +1169,36 @@ out:
v9fs_string_free(&aname);
}
static void v9fs_stat_post_lstat(V9fsState *s, V9fsStatState *vs, int err)
{
if (err == -1) {
err = -errno;
goto out;
}
err = stat_to_v9stat(s, &vs->fidp->path, &vs->stbuf, &vs->v9stat);
if (err) {
goto out;
}
vs->offset += pdu_marshal(vs->pdu, vs->offset, "wS", 0, &vs->v9stat);
err = vs->offset;
out:
complete_pdu(s, vs->pdu, err);
v9fs_stat_free(&vs->v9stat);
g_free(vs);
}
static void v9fs_stat(void *opaque)
{
int32_t fid;
V9fsStat v9stat;
ssize_t err = 0;
size_t offset = 7;
struct stat stbuf;
V9fsFidState *fidp;
V9fsPDU *pdu = opaque;
V9fsState *s = pdu->s;
int32_t fid;
V9fsStatState *vs;
ssize_t err = 0;
vs = g_malloc(sizeof(*vs));
vs->pdu = pdu;
vs->offset = 7;
memset(&vs->v9stat, 0, sizeof(vs->v9stat));
pdu_unmarshal(vs->pdu, vs->offset, "d", &fid);
vs->fidp = lookup_fid(s, fid);
if (vs->fidp == NULL) {
pdu_unmarshal(pdu, offset, "d", &fid);
fidp = lookup_fid(s, fid);
if (fidp == NULL) {
err = -ENOENT;
goto out;
}
err = v9fs_do_lstat(s, &vs->fidp->path, &vs->stbuf);
v9fs_stat_post_lstat(s, vs, err);
return;
err = v9fs_co_lstat(s, &fidp->path, &stbuf);
if (err < 0) {
goto out;
}
err = stat_to_v9stat(s, &fidp->path, &stbuf, &v9stat);
if (err < 0) {
goto out;
}
offset += pdu_marshal(pdu, offset, "wS", 0, &v9stat);
err = offset;
v9fs_stat_free(&v9stat);
out:
complete_pdu(s, vs->pdu, err);
v9fs_stat_free(&vs->v9stat);
g_free(vs);
complete_pdu(s, pdu, err);
}
static void v9fs_getattr(void *opaque)