212 lines
7.6 KiB
C
Executable File
212 lines
7.6 KiB
C
Executable File
/*
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* Copyright (c) 2013-2016, Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1) 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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*
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* 2) 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 and/or
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* other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors may be
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* used to endorse or promote products derived from this software without specific
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* 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 HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "guest_heartbeat_enabling_state.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "guest_types.h"
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#include "guest_debug.h"
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#include "guest_timer.h"
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#include "guest_config.h"
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#include "guest_heartbeat_config.h"
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#include "guest_heartbeat_msg.h"
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#include "guest_heartbeat_fsm.h"
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static int _prev_invocation_id;
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static int _invocation_id;
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static GuestTimerIdT _connect_timer_id = GUEST_TIMER_ID_INVALID;
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Attempt Connect
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// ================================================
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static bool guest_heartbeat_enabling_state_connect( GuestTimerIdT timer_id )
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{
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GuestConfigT* cfg = guest_config_get();
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GuestHeartbeatMsgInitDataT data;
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GuestHeartbeatConfigT* config = guest_heartbeat_config_get();
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GuestErrorT error;
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_prev_invocation_id = _invocation_id;
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_invocation_id = rand();
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memset(&data, 0, sizeof(data));
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snprintf(data.name, GUEST_NAME_MAX_CHAR, "%s", cfg->name);
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data.heartbeat_interval_ms = config->heartbeat_interval_ms;
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data.vote_ms = config->vote_ms;
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data.shutdown_notice_ms = config->shutdown_notice_ms;
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data.suspend_notice_ms = config->suspend_notice_ms;
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data.resume_notice_ms = config->resume_notice_ms;
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data.restart_ms = config->restart_ms;
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data.corrective_action = config->corrective_action;
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error = guest_heartbeat_msg_send_init(_invocation_id, &data);
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if (GUEST_OKAY != error)
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{
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DPRINTFE("Failed to send heartbeat init message, error=%s.",
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guest_error_str(error));
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return true;
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}
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return true; // rearm
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Enter
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// ======================================
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GuestErrorT guest_heartbeat_enabling_state_enter( void )
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{
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GuestHeartbeatConfigT* config = guest_heartbeat_config_get();
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GuestErrorT error;
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error = guest_timer_register(config->heartbeat_init_retry_ms,
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guest_heartbeat_enabling_state_connect,
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&_connect_timer_id);
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if (GUEST_OKAY != error)
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{
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DPRINTFE("Failed to start connect timer, error=%s.",
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guest_error_str(error));
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return error;
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}
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guest_heartbeat_enabling_state_connect(_connect_timer_id);
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return GUEST_OKAY;
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Exit
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// =====================================
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GuestErrorT guest_heartbeat_enabling_state_exit( void )
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{
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GuestErrorT error;
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if (GUEST_TIMER_ID_INVALID != _connect_timer_id)
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{
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error = guest_timer_deregister(_connect_timer_id);
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if (GUEST_OKAY != error)
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{
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DPRINTFE("Failed to cancel connect timer, error=%s.",
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guest_error_str(error));
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}
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_connect_timer_id = GUEST_TIMER_ID_INVALID;
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}
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return GUEST_OKAY;
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Transition
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// ===========================================
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GuestErrorT guest_heartbeat_enabling_state_transition(
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GuestHeartbeatFsmStateT from_state )
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{
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return GUEST_OKAY;
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Event Handler
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// ==============================================
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GuestErrorT guest_heartbeat_enabling_state_event_handler(
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GuestHeartbeatFsmEventT event, void* event_data[] )
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{
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int invocation_id;
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switch (event)
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{
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case GUEST_HEARTBEAT_FSM_RELEASE:
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case GUEST_HEARTBEAT_FSM_CHALLENGE:
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case GUEST_HEARTBEAT_FSM_CHALLENGE_TIMEOUT:
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case GUEST_HEARTBEAT_FSM_ACTION:
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case GUEST_HEARTBEAT_FSM_CHANNEL_UP:
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// Ignore.
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break;
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case GUEST_HEARTBEAT_FSM_CHANNEL_DOWN:
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guest_heartbeat_fsm_set_state(GUEST_HEARTBEAT_FSM_DISABLED_STATE);
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break;
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case GUEST_HEARTBEAT_FSM_INIT_ACK:
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invocation_id = *(int*) event_data[0];
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if ((invocation_id == _invocation_id) ||
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(invocation_id == _prev_invocation_id))
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guest_heartbeat_fsm_set_state(GUEST_HEARTBEAT_FSM_ENABLED_STATE);
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break;
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case GUEST_HEARTBEAT_FSM_SHUTDOWN:
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guest_heartbeat_fsm_set_state(GUEST_HEARTBEAT_FSM_INITIAL_STATE);
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break;
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default:
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DPRINTFE("Ignoring event %s.",
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guest_heartbeat_fsm_event_str(event));
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}
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return GUEST_OKAY;
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Initialize
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// ===========================================
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GuestErrorT guest_heartbeat_enabling_state_initialize( void )
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{
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_connect_timer_id = GUEST_TIMER_ID_INVALID;
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return GUEST_OKAY;
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}
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// ****************************************************************************
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// ****************************************************************************
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// Guest Heartbeat Enabling State - Finalize
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// =========================================
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GuestErrorT guest_heartbeat_enabling_state_finalize( void )
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{
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GuestErrorT error;
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if (GUEST_TIMER_ID_INVALID != _connect_timer_id)
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{
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error = guest_timer_deregister(_connect_timer_id);
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if (GUEST_OKAY != error)
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{
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DPRINTFE("Failed to cancel connect timer, error=%s.",
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guest_error_str(error));
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}
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_connect_timer_id = GUEST_TIMER_ID_INVALID;
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}
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return GUEST_OKAY;
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}
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// ****************************************************************************
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