failvec.h

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/* -*- C -*- */
/*
 * Copyright (c) 2016-2020 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_HA_FAILVEC_H__
#define __MOTR_HA_FAILVEC_H__


#include "lib/tlist.h"         /* m0_tl */
#include "lib/mutex.h"         /* m0_mutex */
#include "ha/dispatcher.h"     /* m0_motr_ha_handler */
#include "lib/cookie.h"        /* m0_cookie */
#include "ha/note.h"           /* M0_HA_STATE_UPDATE_LIMIT */
#include "xcode/xcode_attr.h"

#include "ha/note_xc.h"
#include "lib/cookie_xc.h"

/* Forward declarations. */
struct m0_cookie;
struct m0_poolmach;
struct m0_fid;
struct m0_chan;
struct m0_ha_dispatcher;

struct m0_ha_msg_failure_vec_req {
        struct m0_fid    mfq_pool;
        struct m0_cookie mfq_cookie;
} M0_XCA_RECORD M0_XCA_DOMAIN(rpc);

struct m0_ha_msg_failure_vec_rep {
        struct m0_fid               mfp_pool;
        struct m0_cookie            mfp_cookie;
        uint32_t                    mfp_nr;
        struct m0_ha_msg_nvec_array mfp_vec;
} M0_XCA_RECORD M0_XCA_DOMAIN(rpc);

struct m0_ha_fvec_handler {
        struct m0_tl             hfh_fvreq;
        struct m0_mutex          hfh_lock;
        struct m0_ha_handler     hfh_handler;
        struct m0_ha_dispatcher *hfh_dispatcher;
};

M0_INTERNAL int m0_ha_fvec_handler_init(struct m0_ha_fvec_handler *hfh,
                                        struct m0_ha_dispatcher *hd);

M0_INTERNAL void m0_ha_fvec_handler_fini(struct m0_ha_fvec_handler *hfh);

M0_INTERNAL int m0_ha_fvec_handler_add(struct m0_ha_fvec_handler *hfh,
                                       const struct m0_fid *pool_fid,
                                       struct m0_poolmach *pool_mach,
                                       struct m0_chan *chan,
                                       struct m0_cookie *cookie);
M0_INTERNAL int m0_ha_msg_fvec_send(const struct m0_fid *pool_fid,
                                    const struct m0_cookie *req_cookie,
                                    struct m0_ha_link *hl,
                                    uint32_t type);

M0_INTERNAL void m0_ha_fvec_req_handler(struct m0_ha_fvec_handler *hfh,
                                        const struct m0_ha_msg *msg,
                                        struct m0_ha_link *hl);

M0_INTERNAL void m0_ha_fvec_rep_handler(struct m0_ha_fvec_handler *hfh,
                                        const struct m0_ha_msg *msg);

M0_INTERNAL int m0_ha_failvec_fetch(const struct m0_fid *pool_fid,
                                    struct m0_poolmach *pmach,
                                    struct m0_chan *chan);

#endif /*  __MOTR_HA_FAILVEC_H__ */

/*
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 *  fill-column: 80
 *  scroll-step: 1
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 */
/*
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