timer.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_LIB_USER_SPACE_TIMER_H__
#define __MOTR_LIB_USER_SPACE_TIMER_H__

#include "lib/time.h"      /* m0_time_t */
#include "lib/thread.h"    /* m0_thread */
#include "lib/semaphore.h" /* m0_semaphore */

struct m0_timer {
        enum m0_timer_type  t_type;
        m0_timer_callback_t t_callback;
        unsigned long       t_data;
        m0_time_t           t_expire;
        enum m0_timer_state t_state;

        struct m0_semaphore t_cb_sync_sem;

        struct m0_thread    t_thread;
        struct m0_semaphore t_sleep_sem;
        bool                t_thread_stop;

        timer_t             t_ptimer;
        pid_t               t_tid;

};

struct m0_timer_tid {
        pid_t           tt_tid;
        struct m0_tlink tt_linkage;
        uint64_t        tt_magic;
};

struct m0_timer_locality {
        struct m0_mutex tlo_lock;
        struct m0_tl tlo_tids;
        struct m0_timer_tid *tlo_rrtid;
};

M0_EXTERN const struct m0_timer_operations m0_timer_ops[];

M0_INTERNAL int m0_timers_init(void);
M0_INTERNAL void m0_timers_fini(void);

/* __MOTR_LIB_USER_SPACE_TIMER_H__ */
#endif

/*
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 *  End:
 */