ping_fom.c

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/*
 * 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.
 *
 */


#include "rpc/it/ping_fom.h"
#include "rpc/it/ping_fop.h"
#include "rpc/it/ping_fop_xc.h"
#include "lib/errno.h"
#include "lib/memory.h"
#include "rpc/rpc.h"
#include "fop/fom_generic.h"

static int ping_fop_fom_create(struct m0_fop *fop, struct m0_fom **m,
                               struct m0_reqh *reqh);

struct m0_fom_ops m0_fom_ping_ops = {
        .fo_fini          = m0_fop_ping_fom_fini,
        .fo_tick          = m0_fom_ping_state,
        .fo_home_locality = m0_fom_ping_home_locality
};

const struct m0_fom_type_ops m0_fom_ping_type_ops = {
        .fto_create = ping_fop_fom_create
};

M0_INTERNAL size_t m0_fom_ping_home_locality(const struct m0_fom *fom)
{
        static unsigned loc = 0;

        M0_PRE(fom != NULL);

        return loc++;
}

M0_INTERNAL int m0_fom_ping_state(struct m0_fom *fom)
{
        struct m0_fop_ping_rep *ping_fop_rep;
        struct m0_rpc_item     *item;
        struct m0_fom_ping     *fom_obj;
        struct m0_fop          *fop;

        fom_obj = container_of(fom, struct m0_fom_ping, fp_gen);
        fop = m0_fop_reply_alloc(fom->fo_fop, &m0_fop_ping_rep_fopt);
        M0_ASSERT(fop != NULL);
        ping_fop_rep = m0_fop_data(fop);
        ping_fop_rep->fpr_rc = 0;
        item = m0_fop_to_rpc_item(fop);
        m0_rpc_reply_post(&fom_obj->fp_fop->f_item, item);
        m0_fom_phase_set(fom, M0_FOPH_FINISH);
        return M0_FSO_WAIT;
}

/* Init for ping */
static int ping_fop_fom_create(struct m0_fop *fop, struct m0_fom **m,
                               struct m0_reqh *reqh)
{
        struct m0_fom      *fom;
        struct m0_fom_ping *fom_obj;

        M0_PRE(fop != NULL);
        M0_PRE(m != NULL);

        fom_obj= m0_alloc(sizeof(struct m0_fom_ping));
        if (fom_obj == NULL)
                return -ENOMEM;
        fom = &fom_obj->fp_gen;
        m0_fom_init(fom, &fop->f_type->ft_fom_type, &m0_fom_ping_ops, fop,
                    NULL, reqh);
        fom_obj->fp_fop = fop;
        *m = fom;
        return 0;
}

M0_INTERNAL void m0_fop_ping_fom_fini(struct m0_fom *fom)
{
        struct m0_fom_ping *fom_obj;

        fom_obj = container_of(fom, struct m0_fom_ping, fp_gen);
        m0_fom_fini(fom);
        m0_free(fom_obj);
}

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