ha.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_CONF_HA_H__
#define __MOTR_CONF_HA_H__

#include "lib/types.h"          /* uint64_t */
#include "xcode/xcode_attr.h"   /* M0_XCA_RECORD */
#include "conf/schema.h"        /* m0_conf_service_type */

struct m0_fid;
struct m0_ha;
struct m0_ha_link;

enum m0_conf_ha_process_event {
        M0_CONF_HA_PROCESS_STARTING,
        M0_CONF_HA_PROCESS_STARTED,
        M0_CONF_HA_PROCESS_STOPPING,
        M0_CONF_HA_PROCESS_STOPPED,
        M0_CONF_HA_PROCESS_DTM_RECOVERED,
};

enum m0_conf_ha_process_type {
        M0_CONF_HA_PROCESS_OTHER,
        M0_CONF_HA_PROCESS_KERNEL,
        M0_CONF_HA_PROCESS_M0MKFS,
        M0_CONF_HA_PROCESS_M0D,
};

struct m0_conf_ha_process {
        uint64_t chp_event;
        uint64_t chp_type;
        uint64_t chp_pid;
} M0_XCA_RECORD M0_XCA_DOMAIN(rpc);

enum m0_conf_ha_service_event {
        M0_CONF_HA_SERVICE_STARTING,
        M0_CONF_HA_SERVICE_STARTED,
        M0_CONF_HA_SERVICE_STOPPING,
        M0_CONF_HA_SERVICE_STOPPED,
        M0_CONF_HA_SERVICE_FAILED,
};

struct m0_conf_ha_service {
        uint64_t chs_event;
        uint64_t chs_type;
        uint64_t chs_pid;
} M0_XCA_RECORD M0_XCA_DOMAIN(rpc);

M0_INTERNAL void
m0_conf_ha_process_event_post(struct m0_ha                  *ha,
                              struct m0_ha_link             *hl,
                              const struct m0_fid           *process_fid,
                              uint64_t                       pid,
                              enum m0_conf_ha_process_event  event,
                              enum m0_conf_ha_process_type   type);


M0_INTERNAL void
m0_conf_ha_service_event_post(struct m0_ha                  *ha,
                              struct m0_ha_link             *hl,
                              const struct m0_fid           *source_process_fid,
                              const struct m0_fid           *source_service_fid,
                              const struct m0_fid           *service_fid,
                              uint64_t                       pid,
                              enum m0_conf_ha_service_event  event,
                              enum m0_conf_service_type      service_type);


#endif /* __MOTR_CONF_HA_H__ */

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/*
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