95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
//
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// Copyright (c) 2018 Wind River Systems, Inc.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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#ifndef __SM_CLUSTER_HBS_INFO_MSG_H__
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#define __SM_CLUSTER_HBS_INFO_MSG_H__
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#include <list>
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#include <pthread.h>
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#include <stdio.h>
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#include "mtceHbsCluster.h"
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#include "sm_types.h"
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#include "sm_timer.h"
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#include "sm_util_types.h"
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// ****************************************************************************
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// struct SmClusterHbsInfoT
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// Store cluster hbs info
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// ========================
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struct _SmClusterHbsInfoT
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{
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bool storage0_responding;
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int number_of_node_reachable;
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int number_of_node_enabled;
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_SmClusterHbsInfoT() : storage0_responding(false),
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number_of_node_reachable(0),
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number_of_node_enabled(0)
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{
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}
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};
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typedef struct _SmClusterHbsInfoT SmClusterHbsInfoT;
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bool operator==(const SmClusterHbsInfoT& lhs, const SmClusterHbsInfoT& rhs);
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bool operator!=(const SmClusterHbsInfoT& lhs, const SmClusterHbsInfoT& rhs);
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const unsigned int max_controllers = 2;
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// ****************************************************************************
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// struct SmClusterHbsInfoT
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// Store cluster hbs info aggregate data from all (max_controllers)
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// controllers
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// ========================
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typedef struct
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{
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SmClusterHbsInfoT controllers[max_controllers];
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bool storage0_enabled;
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time_t last_update;
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}SmClusterHbsStateT;
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bool operator==(const SmClusterHbsStateT& lhs, const SmClusterHbsStateT& rhs);
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bool operator!=(const SmClusterHbsStateT& lhs, const SmClusterHbsStateT& rhs);
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inline bool is_valid(const SmClusterHbsStateT& state)
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{
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return state.last_update > 0;
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}
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void log_cluster_hbs_state(const SmClusterHbsStateT& state);
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typedef void(*cluster_hbs_query_ready_callback)();
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// ****************************************************************************
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// class SmClusterHbsInfoMsg -
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// handle requesting/receiving and processing cluster hbs info from hbsAgent.
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//
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// hbsAgent sends hbs cluster info when there is a change in the cluster.
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// Keep track of most up-to-date info prior to a failure occurs.
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// Provide async query with callback when hbsAgent response is received
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// ========================
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class SmClusterHbsInfoMsg
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{
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public:
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typedef std::list<cluster_hbs_query_ready_callback> hbs_query_respond_callback;
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static SmErrorT initialize();
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static SmErrorT finalize();
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static const SmClusterHbsStateT& get_current_state();
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static const SmClusterHbsStateT& get_previous_state();
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static bool cluster_hbs_info_query(cluster_hbs_query_ready_callback callback = NULL);
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static void dump_hbs_record(FILE* fp);
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private:
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static int _sock;
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static unsigned short _last_reqid;
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static pthread_mutex_t _mutex;
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static SmClusterHbsStateT _cluster_hbs_state_current;
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static SmClusterHbsStateT _cluster_hbs_state_previous;
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static hbs_query_respond_callback _callbacks;
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static SmErrorT open_socket();
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static SmErrorT _get_address(const char* port_key, struct sockaddr_in* addr);
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static void _cluster_hbs_info_msg_received( int selobj, int64_t user_data );
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static bool _process_cluster_hbs_history(mtce_hbs_cluster_history_type history,
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SmClusterHbsStateT& state);
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};
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#endif // __SM_CLUSTER_HBS_INFO_MSG_H__
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