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#include "metadisp.h"
#include <glusterfs/call-stub.h>
/**
* Create, like stat, is a two-step process. We send a create
* to the METADATA_CHILD, then send another create to the DATA_CHILD.
*
* We do the metadata child first to ensure that the ACLs are enforced.
*/
int32_t
metadisp_create_dentry_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, fd_t *fd,
inode_t *inode, struct iatt *buf,
struct iatt *preparent, struct iatt *postparent,
dict_t *xdata)
{
STACK_UNWIND_STRICT(create, frame, op_ret, op_errno, fd, inode, buf,
preparent, postparent, xdata);
return 0;
}
int32_t
metadisp_create_resume(call_frame_t *frame, xlator_t *this, loc_t *loc,
int32_t flags, mode_t mode, mode_t umask, fd_t *fd,
dict_t *xdata)
{
// create the backend data inode
STACK_WIND(frame, metadisp_create_dentry_cbk, DATA_CHILD(this),
DATA_CHILD(this)->fops->create, loc, flags, mode, umask, fd,
xdata);
return 0;
}
int32_t
metadisp_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent, dict_t *xdata)
{
METADISP_TRACE("%d %d", op_ret, op_errno);
call_stub_t *stub = cookie;
if (op_ret != 0) {
STACK_UNWIND_STRICT(create, frame, op_ret, op_errno, fd, inode, buf,
preparent, postparent, xdata);
return 0;
}
if (stub == NULL) {
goto unwind;
}
if (stub->poison) {
call_stub_destroy(stub);
return 0;
}
call_resume(stub);
return 0;
unwind:
STACK_UNWIND_STRICT(create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL,
NULL);
return 0;
}
int32_t
metadisp_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata)
{
METADISP_TRACE(".");
loc_t backend_loc = {
0,
};
call_stub_t *stub = NULL;
uuid_t *gfid_req = NULL;
RESOLVE_GFID_REQ(xdata, gfid_req, out);
if (build_backend_loc(*gfid_req, loc, &backend_loc)) {
goto unwind;
}
frame->local = loc;
stub = fop_create_stub(frame, metadisp_create_resume, &backend_loc, flags,
mode, umask, fd, xdata);
STACK_WIND_COOKIE(frame, metadisp_create_cbk, stub, METADATA_CHILD(this),
METADATA_CHILD(this)->fops->create, loc, flags, mode,
umask, fd, xdata);
return 0;
unwind:
STACK_UNWIND_STRICT(create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL,
NULL);
return 0;
out:
return -1;
}
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