int
fusefs_write(void *v)
{
struct vop_write_args *ap = v;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct fusefs_node *ip;
struct fusefs_mnt *fmp;
struct fusebuf *fbuf = NULL;
size_t len, diff;
int error=0;
DPRINTF("fusefs_write\n");
ip = VTOI(vp);
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
DPRINTF("write inode=%i, offset=%llu, resid=%x\n",
ip->ufs_ino.i_number, uio->uio_offset, uio->uio_resid);
if (uio->uio_resid == 0)
return (error);
while (uio->uio_resid > 0) {
len = MIN(uio->uio_resid, FUSELEN);
fbuf = fb_setup(FUSEFDSIZE + len, ip->ufs_ino.i_number,
FBT_WRITE, p);
fbuf->fb_io_fd = fusefs_fd_get(ip, FUFH_WRONLY);
fbuf->fb_io_off = uio->uio_offset;
fbuf->fb_io_len = len;
if ((error = uiomove(fbuf->fb_dat, len, uio))) {
DPRINTF("uio error %i", error);
break;
}
error = fb_queue(fmp->dev, fbuf);
if (error)
break;
diff = len - fbuf->fb_io_len;
if (diff < 0) {
error = EINVAL;
break;
}
uio->uio_resid += diff;
uio->uio_offset -= diff;
pool_put(&fusefs_fbuf_pool, fbuf);
fbuf = NULL;
}
if (fbuf)
pool_put(&fusefs_fbuf_pool, fbuf);
return (error);
}
int
fusefs_read(void *v)
{
struct vop_read_args *ap = v;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct fusefs_node *ip;
struct fusefs_mnt *fmp;
struct fusebuf *fbuf = NULL;
size_t size;
int error=0;
DPRINTF("fusefs_read\n");
ip = VTOI(vp);
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
DPRINTF("read inode=%i, offset=%llu, resid=%x\n",
ip->ufs_ino.i_number, uio->uio_offset, uio->uio_resid);
if (uio->uio_resid == 0)
return (error);
if (uio->uio_offset < 0)
return (EINVAL);
while (uio->uio_resid > 0) {
fbuf = fb_setup(FUSEFDSIZE, ip->ufs_ino.i_number, FBT_READ, p);
size = MIN(uio->uio_resid, FUSELEN);
fbuf->fb_io_fd = fusefs_fd_get(ip, FUFH_RDONLY);
fbuf->fb_io_off = uio->uio_offset;
fbuf->fb_io_len = size;
error = fb_queue(fmp->dev, fbuf);
if (error)
break;
error = uiomove(fbuf->fb_dat, MIN(size, fbdatsize(fbuf)), uio);
if (error)
break;
if (fbdatsize(fbuf) < size)
break;
pool_put(&fusefs_fbuf_pool, fbuf);
fbuf = NULL;
}
if (fbuf)
pool_put(&fusefs_fbuf_pool, fbuf);
return (error);
}
int
fusefs_read(void *v)
{
struct vop_read_args *ap = v;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct fusefs_node *ip;
struct fusefs_mnt *fmp;
struct fusebuf *fbuf = NULL;
size_t size;
int error=0;
ip = VTOI(vp);
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
if (!fmp->sess_init)
return (ENXIO);
if (uio->uio_resid == 0)
return (error);
if (uio->uio_offset < 0)
return (EINVAL);
while (uio->uio_resid > 0) {
fbuf = fb_setup(0, ip->ufs_ino.i_number, FBT_READ, p);
size = MIN(uio->uio_resid, FUSEBUFMAXSIZE);
fbuf->fb_io_fd = fusefs_fd_get(ip, FUFH_RDONLY);
fbuf->fb_io_off = uio->uio_offset;
fbuf->fb_io_len = size;
error = fb_queue(fmp->dev, fbuf);
if (error)
break;
error = uiomove(fbuf->fb_dat, MIN(size, fbuf->fb_len), uio);
if (error)
break;
if (fbuf->fb_len < size)
break;
fb_delete(fbuf);
fbuf = NULL;
}
fb_delete(fbuf);
return (error);
}
int
fusefs_write(void *v)
{
struct vop_write_args *ap = v;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
struct proc *p = uio->uio_procp;
struct ucred *cred = p->p_ucred;
struct vattr vattr;
int ioflag = ap->a_ioflag;
struct fusefs_node *ip;
struct fusefs_mnt *fmp;
struct fusebuf *fbuf = NULL;
size_t len, diff;
int error=0;
ip = VTOI(vp);
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
if (!fmp->sess_init)
return (ENXIO);
if (uio->uio_resid == 0)
return (error);
if (ioflag & IO_APPEND) {
if ((error = VOP_GETATTR(vp, &vattr, cred)) != 0)
return (error);
uio->uio_offset = vattr.va_size;
}
while (uio->uio_resid > 0) {
len = MIN(uio->uio_resid, FUSEBUFMAXSIZE);
fbuf = fb_setup(len, ip->ufs_ino.i_number, FBT_WRITE, p);
fbuf->fb_io_fd = fusefs_fd_get(ip, FUFH_WRONLY);
fbuf->fb_io_off = uio->uio_offset;
fbuf->fb_io_len = len;
if ((error = uiomove(fbuf->fb_dat, len, uio))) {
printf("fusefs: uio error %i\n", error);
break;
}
error = fb_queue(fmp->dev, fbuf);
if (error)
break;
if (fbuf->fb_io_len > len) {
error = EINVAL;
break;
}
diff = len - fbuf->fb_io_len;
uio->uio_resid += diff;
uio->uio_offset -= diff;
fb_delete(fbuf);
fbuf = NULL;
}
fb_delete(fbuf);
return (error);
}
