timer.c

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/*
 * Copyright (c) 2002-2006 MontaVista Software, Inc.
 * Copyright (c) 2006-2010 Red Hat, Inc.
 *
 * All rights reserved.
 *
 * Author: Steven Dake (sdake@redhat.com)
 *
 * This software licensed under BSD license, the text of which follows:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name of the MontaVista Software, Inc. nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <config.h>
 
#include "timer.h"
#include "main.h"
#include <qb/qbdefs.h>
#include <qb/qbutil.h>
 
int corosync_timer_add_absolute (
                unsigned long long nanosec_from_epoch,
                void *data,
                void (*timer_fn) (void *data),
                corosync_timer_handle_t *handle)
{
        uint64_t expire_time = nanosec_from_epoch - qb_util_nano_current_get();
        return qb_loop_timer_add(cs_poll_handle_get(),
                                QB_LOOP_MED,
                                 expire_time,
                                 data,
                                 timer_fn,
                                 handle);
}
 
int corosync_timer_add_duration (
        unsigned long long nanosec_duration,
        void *data,
        void (*timer_fn) (void *data),
        corosync_timer_handle_t *handle)
{
        return qb_loop_timer_add(cs_poll_handle_get(),
                                QB_LOOP_MED,
                                 nanosec_duration,
                                 data,
                                 timer_fn,
                                 handle);
}
 
void corosync_timer_delete (
        corosync_timer_handle_t th)
{
        qb_loop_timer_del(cs_poll_handle_get(), th);
}
 
unsigned long long corosync_timer_expire_time_get (
        corosync_timer_handle_t th)
{
        uint64_t expire;
 
        if (th == 0) {
                return (0);
        }
 
        expire = qb_loop_timer_expire_time_get(cs_poll_handle_get(), th);
 
        return (expire);
}
 
unsigned long long cs_timer_time_get (void)
{
        return qb_util_nano_from_epoch_get();
}