/*
* Copyright (c) 2020 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* $Id: //eng/vdo-releases/aluminum/src/c++/vdo/base/slabScrubberInternals.h#5 $
*/
#ifndef SLAB_SCRUBBER_INTERNALS_H
#define SLAB_SCRUBBER_INTERNALS_H
#include "slabScrubber.h"
#include "adminState.h"
#include "atomic.h"
#include "extent.h"
#include "ringNode.h"
struct slabScrubber {
VDOCompletion completion;
/** The queue of slabs to scrub first */
RingNode highPrioritySlabs;
/** The queue of slabs to scrub once there are no highPrioritySlabs */
RingNode slabs;
/** The queue of VIOs waiting for a slab to be scrubbed */
WaitQueue waiters;
// The number of slabs that are unrecovered or being scrubbed. This field is
// modified by the physical zone thread, but is queried by other threads.
Atomic64 slabCount;
/** The administrative state of the scrubber */
AdminState adminState;
/** Whether to only scrub high-priority slabs */
bool highPriorityOnly;
/** The context for entering read-only mode */
ReadOnlyNotifier *readOnlyNotifier;
/** The slab currently being scrubbed */
Slab *slab;
/** The extent for loading slab journal blocks */
VDOExtent *extent;
/** A buffer to store the slab journal blocks */
char *journalData;
};
#endif // SLAB_SCRUBBER_INTERNALS_H