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/*
Copyright (c) 2017 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include <glusterfs/xlator.h>
#include <glusterfs/defaults.h>
int32_t
init(xlator_t *this)
{
return 0;
}
void
fini(xlator_t *this)
{
return;
}
/*
* notify - when parent sends PARENT_UP, send CHILD_UP event from here
*/
int32_t
notify(xlator_t *this, int32_t event, void *data, ...)
{
switch (event) {
case GF_EVENT_PARENT_UP:
/* Tell the parent that this xlator is up */
default_notify(this, GF_EVENT_CHILD_UP, data);
break;
case GF_EVENT_PARENT_DOWN:
/* Tell the parent that this xlator is down */
default_notify(this, GF_EVENT_CHILD_DOWN, data);
break;
default:
break;
}
return 0;
}
/*
* A lookup on "/" is done while mounting or glfs_init() is performed. This
* needs to return a valid directory for the root of the mountpoint.
*
* In case this xlator is used for more advanced debugging, it will need to be
* extended to support different LOOKUPs too.
*/
static int32_t
sink_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
{
struct iatt stbuf = {
0,
};
struct iatt postparent = {
0,
};
/* the root of the volume always need to be a directory */
stbuf.ia_type = IA_IFDIR;
STACK_UNWIND_STRICT(lookup, frame, 0, 0, loc ? loc->inode : NULL, &stbuf,
xdata, &postparent);
return 0;
}
struct xlator_fops fops = {
.lookup = sink_lookup,
};
struct xlator_cbks cbks = {};
struct volume_options options[] = {
{.key = {NULL}},
};
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