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/*
* Copyright (c) 2015-2020 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Jan Friesse (jfriesse@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 Red Hat, 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 "log.h"
#include "qdevice-net-algorithm.h"
#include "qdevice-net-echo-request-timer.h"
#include "qdevice-net-send.h"
static int
qdevice_net_echo_request_timer_callback(void *data1, void *data2)
{
struct qdevice_net_instance *instance;
instance = (struct qdevice_net_instance *)data1;
if (instance->echo_reply_received_msg_seq_num !=
instance->echo_request_expected_msg_seq_num) {
log(LOG_ERR, "Server didn't send echo reply message on time");
if (qdevice_net_algorithm_echo_reply_not_received(instance) != 0) {
log(LOG_DEBUG, "Algorithm decided to disconnect");
instance->schedule_disconnect = 1;
instance->disconnect_reason =
QDEVICE_NET_DISCONNECT_REASON_ALGO_ECHO_REPLY_NOT_RECEIVED_ERR;
instance->echo_request_timer = NULL;
return (0);
} else {
log(LOG_DEBUG, "Algorithm decided to continue send heartbeat");
return (-1);
}
}
if (qdevice_net_send_echo_request(instance) == -1) {
instance->disconnect_reason = QDEVICE_NET_DISCONNECT_REASON_CANT_ALLOCATE_MSG_BUFFER;
instance->schedule_disconnect = 1;
instance->echo_request_timer = NULL;
return (0);
}
/*
* Schedule this function callback again
*/
return (-1);
}
int
qdevice_net_echo_request_timer_schedule(struct qdevice_net_instance *instance)
{
instance->echo_request_expected_msg_seq_num = 0;
instance->echo_reply_received_msg_seq_num = 0;
if (instance->echo_request_timer != NULL) {
timer_list_entry_delete(
pr_poll_loop_get_timer_list(&instance->qdevice_instance_ptr->main_poll_loop),
instance->echo_request_timer);
instance->echo_request_timer = NULL;
}
log(LOG_DEBUG, "Scheduling send of heartbeat every %"PRIu32"ms", instance->heartbeat_interval);
instance->echo_request_timer = timer_list_add(
pr_poll_loop_get_timer_list(&instance->qdevice_instance_ptr->main_poll_loop),
instance->heartbeat_interval, qdevice_net_echo_request_timer_callback,
(void *)instance, NULL);
if (instance->echo_request_timer == NULL) {
log(LOG_ERR, "Can't schedule regular sending of heartbeat.");
instance->disconnect_reason = QDEVICE_NET_DISCONNECT_REASON_CANT_SCHEDULE_HB_TIMER;
return (-1);
}
return (0);
}
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