iter.h

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/* -*- C -*- */
/*
 * Copyright (c) 2012-2020 Seagate Technology LLC and/or its Affiliates
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For any questions about this software or licensing,
 * please email opensource@seagate.com or cortx-questions@seagate.com.
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#pragma once

#ifndef __MOTR_SNS_CM_ITER_H__
#define __MOTR_SNS_CM_ITER_H__

#include "sm/sm.h"
#include "cob/ns_iter.h"
#include "layout/pdclust.h"
#include "layout/linear_enum.h"

struct m0_cm;
struct m0_sns_cm;
struct m0_sns_cm_ag;
struct m0_cm_cp;

struct m0_sns_cm_iter_file_ctx {
        struct m0_fid                 ifc_gfid;

        struct m0_sns_cm_file_ctx    *ifc_fctx;

        struct m0_pdclust_instance   *ifc_pi;

        struct m0_poolmach           *ifc_pm;

        uint32_t                      ifc_upg;

        uint32_t                      ifc_dpupg;

        uint64_t                      ifc_group_last;

        struct m0_pdclust_src_addr    ifc_sa;

        struct m0_pdclust_tgt_addr    ifc_ta;

        struct m0_fid                 ifc_cob_fid;

        bool                          ifc_cob_is_spare_unit;
};

struct m0_sns_cm_iter {
        struct m0_sm                     si_sm;

        struct m0_sns_cm_iter_file_ctx   si_fc;

        struct m0_fom                   *si_fom;

        struct m0_sns_cm_cp             *si_cp;

        struct m0_cm_aggr_group         *si_ag;

        struct m0_cob_fid_ns_iter        si_cns_it;

        uint64_t                         si_total_files;

        uint64_t                         si_magix;
};

M0_INTERNAL int m0_sns_cm_iter_init(struct m0_sns_cm_iter *it);
M0_INTERNAL void m0_sns_cm_iter_fini(struct m0_sns_cm_iter *it);

M0_INTERNAL int m0_sns_cm_iter_start(struct m0_sns_cm_iter *it);
M0_INTERNAL void m0_sns_cm_iter_stop(struct m0_sns_cm_iter *it);

M0_INTERNAL int m0_sns_cm_iter_next(struct m0_cm *cm, struct m0_cm_cp *cp);

M0_INTERNAL void m0_sns_cm_iter_tgt_unit_to_cob(struct m0_sns_cm_ag *rag);

M0_INTERNAL uint64_t
m0_sns_cm_iter_failures_nr(const struct m0_sns_cm_iter *it);

M0_INTERNAL ssize_t m0_sns_cm_iter_file_size(struct m0_fid *gfid);

M0_INTERNAL int m0_sns_cm_fctx_pm(struct m0_sns_cm_file_ctx *fctx, struct m0_fid *gfid,
                                  struct m0_poolmach **mach);

#endif /* __MOTR_SNS_CM_ITER_H__ */
/*
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 *  End:
 */