ag.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.
 *
 */


#pragma once

#ifndef __MOTR_SNS_CM_AG_H__
#define __MOTR_SNS_CM_AG_H__

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

#include "cm/ag.h"
#include "sns/cm/cp.h"
#include "cm/proxy.h"

struct m0_sns_cm;

struct m0_sns_cm_ag {
        struct m0_cm_aggr_group          sag_base;

        struct m0_sns_cm_file_ctx       *sag_fctx;

        uint32_t                         sag_fnr;

        struct m0_cm_proxy_in_count      sag_proxy_in_count;

        uint32_t                         sag_cp_created_nr;

        uint32_t                         sag_incoming_units_nr;

        uint32_t                         sag_incoming_cp_nr;

        uint32_t                         sag_outgoing_nr;

        uint32_t                         sag_local_tgts_nr;

        uint32_t                         sag_not_coming;

        struct m0_bitmap                 sag_fmap;
};

struct m0_sns_cm_ag_iter {
        struct m0_sm                 ai_sm;
        struct m0_fid                ai_fid;
        struct m0_cm_ag_id           ai_id_curr;
        struct m0_cm_ag_id           ai_id_next;
        uint64_t                     ai_group_last;
        struct m0_sns_cm_file_ctx   *ai_fctx;

        struct m0_poolmach          *ai_pm;
};

M0_INTERNAL int m0_sns_cm_ag__next(struct m0_sns_cm *scm,
                                   const struct m0_cm_ag_id *id_curr,
                                   struct m0_cm_ag_id *id_next);
M0_INTERNAL int m0_sns_cm_ag_iter_init(struct m0_sns_cm_ag_iter *ai);
M0_INTERNAL void m0_sns_cm_ag_iter_fini(struct m0_sns_cm_ag_iter *ai);

M0_INTERNAL int m0_sns_cm_ag_init(struct m0_sns_cm_ag *sag,
                                  struct m0_cm *cm,
                                  const struct m0_cm_ag_id *id,
                                  const struct m0_cm_aggr_group_ops *ag_ops,
                                  bool has_incoming);

M0_INTERNAL void m0_sns_cm_ag_fini(struct m0_sns_cm_ag *sag);

M0_INTERNAL uint64_t m0_sns_cm_ag_local_cp_nr(const struct m0_cm_aggr_group *ag);
M0_INTERNAL bool m0_sns_cm_ag_has_incoming_from(struct m0_cm_aggr_group *ag,
                                                struct m0_cm_proxy *proxy);

M0_INTERNAL bool m0_sns_cm_ag_is_frozen_on(struct m0_cm_aggr_group *ag,
                                           struct m0_cm_proxy *pxy);

M0_INTERNAL struct m0_sns_cm_ag *ag2snsag(const struct m0_cm_aggr_group *ag);

M0_INTERNAL void agid2fid(const struct m0_cm_ag_id *id,
                          struct m0_fid *fid);

M0_INTERNAL uint64_t agid2group(const struct m0_cm_ag_id *id);

M0_INTERNAL void m0_sns_cm_ag_agid_setup(const struct m0_fid *gob_fid,
                                         uint64_t group,
                                         struct m0_cm_ag_id *agid);

M0_INTERNAL struct m0_cm *snsag2cm(const struct m0_sns_cm_ag *sag);

M0_INTERNAL bool m0_sns_cm_ag_has_data(struct m0_sns_cm_file_ctx *fctx,
                                       uint64_t group);

#endif /* __MOTR_SNS_CM_AG_H__ */

/*
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 *  c-indentation-style: "K&R"
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 *  tab-width: 8
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 *  End:
 */