fi_service.c

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/* -*- C -*- */
/*
 * Copyright (c) 2017-2020 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.
 *
 */


#define M0_TRACE_SUBSYSTEM M0_TRACE_SUBSYS_OTHER

#include "lib/trace.h"
#include "lib/errno.h"
#include "lib/memory.h"           /* M0_ALLOC_PTR */
#include "fis/fi_command_fops.h"
#include "fis/fi_service.h"


static int fis_allocate(struct m0_reqh_service **service,
                        const struct m0_reqh_service_type *stype);

static int fis_start(struct m0_reqh_service *service)
{
        M0_ENTRY();
        m0_fi_command_fop_init();
        return M0_RC(0);
}

static void fis_stop(struct m0_reqh_service *service)
{
        M0_ENTRY();
        m0_fi_command_fop_fini();
        M0_LEAVE();
}

static void fis_fini(struct m0_reqh_service *service)
{
        /* Nothing to finalise here. */
}

static const struct m0_reqh_service_type_ops fis_type_ops = {
        .rsto_service_allocate = fis_allocate
};

static const struct m0_reqh_service_ops fis_ops = {
        .rso_start = fis_start,
        .rso_stop  = fis_stop,
        .rso_fini  = fis_fini,
};

struct m0_reqh_service_type m0_fis_type = {
        .rst_name     = FI_SERVICE_NAME,
        .rst_ops      = &fis_type_ops,
        .rst_level    = M0_RPC_SVC_LEVEL,
        .rst_typecode = M0_CST_FIS,
};

static const struct m0_bob_type fis_bob = {
        .bt_name = FI_SERVICE_NAME,
        .bt_magix_offset = offsetof(struct m0_reqh_fi_service, fis_magic),
        .bt_magix = M0_FI_SERVICE_MAGIC,
        .bt_check = NULL
};

M0_BOB_DEFINE(M0_INTERNAL, &fis_bob, m0_reqh_fi_service);

static int fis_allocate(struct m0_reqh_service **service,
                        const struct m0_reqh_service_type *stype)
{
        struct m0_reqh_fi_service *fis;

        M0_ENTRY();
        M0_PRE(service != NULL && stype != NULL);

        M0_ALLOC_PTR(fis);
        if (fis == NULL)
                return M0_ERR(-ENOMEM);
        m0_reqh_fi_service_bob_init(fis);
        *service = &fis->fis_svc;
        (*service)->rs_ops = &fis_ops;
        return M0_RC(0);
}

M0_INTERNAL int m0_fis_register(void)
{
        M0_ENTRY();
        m0_reqh_service_type_register(&m0_fis_type);
        return M0_RC(0);
}

M0_INTERNAL void m0_fis_unregister(void)
{
        M0_ENTRY();
        m0_reqh_service_type_unregister(&m0_fis_type);
        M0_LEAVE();
}

#undef M0_TRACE_SUBSYSTEM

/*
 *  Local variables:
 *  c-indentation-style: "K&R"
 *  c-basic-offset: 8
 *  tab-width: 8
 *  fill-column: 80
 *  scroll-step: 1
 *  End:
 */