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0c9df248f8
Previously client was not force to use heartbeat. Because we have to be able to detect dead client in qnetd, heartbeat setting is now forced. Insted of set_option message, heartbeat is force to exists in init message. This also means that QDEVICE_NET_INSTANCE_STATE_WAITING_SET_OPTION_REPLY can be removed and client is considered as connected after init_reply is received. So currently, set_option is not used (but implementation of these two messages still exists). Signed-off-by: Jan Friesse <jfriesse@redhat.com>
107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/*
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* Copyright (c) 2015-2016 Red Hat, Inc.
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*
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* All rights reserved.
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*
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* Author: Jan Friesse (jfriesse@redhat.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the Red Hat, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "qdevice-net-algorithm.h"
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#include "qdevice-net-echo-request-timer.h"
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#include "qdevice-net-send.h"
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#include "qdevice-log.h"
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static int
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qdevice_net_echo_request_timer_callback(void *data1, void *data2)
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{
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struct qdevice_net_instance *instance;
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instance = (struct qdevice_net_instance *)data1;
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if (instance->echo_reply_received_msg_seq_num !=
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instance->echo_request_expected_msg_seq_num) {
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qdevice_log(LOG_ERR, "Server didn't send echo reply message on time");
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if (qdevice_net_algorithm_echo_reply_not_received(instance) != 0) {
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qdevice_log(LOG_DEBUG, "Algorithm decided to disconnect");
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instance->schedule_disconnect = 1;
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instance->disconnect_reason =
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QDEVICE_NET_DISCONNECT_REASON_ALGO_ECHO_REPLY_NOT_RECEIVED_ERR;
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instance->echo_request_timer = NULL;
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return (0);
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} else {
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qdevice_log(LOG_DEBUG, "Algorithm decided to continue send heartbeat");
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return (-1);
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}
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}
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if (qdevice_net_send_echo_request(instance) == -1) {
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instance->disconnect_reason = QDEVICE_NET_DISCONNECT_REASON_CANT_ALLOCATE_MSG_BUFFER;
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instance->schedule_disconnect = 1;
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instance->echo_request_timer = NULL;
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return (0);
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}
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/*
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* Schedule this function callback again
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*/
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return (-1);
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}
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int
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qdevice_net_echo_request_timer_schedule(struct qdevice_net_instance *instance)
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{
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instance->echo_request_expected_msg_seq_num = 0;
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instance->echo_reply_received_msg_seq_num = 0;
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if (instance->echo_request_timer != NULL) {
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timer_list_delete(&instance->main_timer_list, instance->echo_request_timer);
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instance->echo_request_timer = NULL;
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}
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qdevice_log(LOG_DEBUG, "Scheduling send of heartbeat every %"PRIu32"ms", instance->heartbeat_interval);
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instance->echo_request_timer = timer_list_add(&instance->main_timer_list,
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instance->heartbeat_interval, qdevice_net_echo_request_timer_callback,
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(void *)instance, NULL);
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if (instance->echo_request_timer == NULL) {
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qdevice_log(LOG_ERR, "Can't schedule regular sending of heartbeat.");
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instance->disconnect_reason = QDEVICE_NET_DISCONNECT_REASON_CANT_SCHEDULE_HB_TIMER;
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return (-1);
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}
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return (0);
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}
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