332 lines
11 KiB
C
332 lines
11 KiB
C
//
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// Copyright (c) 2014 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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#include "sm_service_group_api.h"
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#include <stdio.h>
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#include "sm_types.h"
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#include "sm_debug.h"
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#include "sm_list.h"
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#include "sm_node_api.h"
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#include "sm_service_group_table.h"
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#include "sm_service_group_member_table.h"
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#include "sm_service_group_engine.h"
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#include "sm_service_group_fsm.h"
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static SmListT* _callbacks = NULL;
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// ****************************************************************************
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// Service Group API - Register Callback
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// =====================================
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SmErrorT sm_service_group_api_register_callback(
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SmServiceGroupApiCallbackT callback )
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{
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SM_LIST_PREPEND( _callbacks, (SmListEntryDataPtrT) callback );
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Deregister Callback
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// =======================================
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SmErrorT sm_service_group_api_deregister_callback(
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SmServiceGroupApiCallbackT callback )
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{
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SM_LIST_REMOVE( _callbacks, (SmListEntryDataPtrT) callback );
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Service Group Callback
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// ==========================================
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static void sm_service_group_api_service_group_callback(
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char service_group_name[], SmServiceGroupStateT state,
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SmServiceGroupStatusT status, SmServiceGroupConditionT condition,
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int64_t health, const char reason_text[] )
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{
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SmListT* entry = NULL;
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SmListEntryDataPtrT entry_data;
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SmServiceGroupApiCallbackT callback;
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SM_LIST_FOREACH( _callbacks, entry, entry_data )
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{
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callback = (SmServiceGroupApiCallbackT) entry_data;
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callback( service_group_name, state, status, condition, health,
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reason_text );
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}
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Go-Active
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// =============================
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SmErrorT sm_service_group_api_go_active( char service_group_name[] )
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{
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SmServiceGroupT* service_group;
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SmErrorT error;
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service_group = sm_service_group_table_read( service_group_name );
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if( NULL == service_group )
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{
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DPRINTFE( "Failed to read service group (%s), error=%s.",
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service_group_name, sm_error_str(SM_NOT_FOUND) );
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return( SM_NOT_FOUND );
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}
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if( SM_SERVICE_GROUP_STATE_ACTIVE != service_group->desired_state )
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{
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service_group->desired_state = SM_SERVICE_GROUP_STATE_ACTIVE;
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error = sm_service_group_table_persist( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to persist service group (%s) data, error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_engine_signal( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to signal service group (%s), error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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}
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Go-Standby
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// ==============================
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SmErrorT sm_service_group_api_go_standby( char service_group_name[] )
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{
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SmServiceGroupT* service_group;
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SmErrorT error;
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service_group = sm_service_group_table_read( service_group_name );
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if( NULL == service_group )
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{
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DPRINTFE( "Failed to read service group (%s), error=%s.",
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service_group_name, sm_error_str(SM_NOT_FOUND) );
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return( SM_NOT_FOUND );
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}
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if( SM_SERVICE_GROUP_STATE_STANDBY != service_group->desired_state )
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{
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service_group->desired_state = SM_SERVICE_GROUP_STATE_STANDBY;
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error = sm_service_group_table_persist( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to persist service group (%s) data, error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_engine_signal( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to signal service group (%s), error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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}
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Disable
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// ===========================
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SmErrorT sm_service_group_api_disable( char service_group_name[] )
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{
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SmServiceGroupT* service_group;
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SmErrorT error;
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service_group = sm_service_group_table_read( service_group_name );
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if( NULL == service_group )
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{
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DPRINTFE( "Failed to read service group (%s), error=%s.",
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service_group_name, sm_error_str(SM_NOT_FOUND) );
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return( SM_NOT_FOUND );
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}
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if( SM_SERVICE_GROUP_STATE_DISABLED != service_group->desired_state )
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{
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service_group->desired_state = SM_SERVICE_GROUP_STATE_DISABLED;
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error = sm_service_group_table_persist( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to persist service group (%s) data, error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_engine_signal( service_group );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to signal service group (%s), error=%s.",
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service_group->name, sm_error_str( error ) );
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return( error );
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}
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}
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Recover
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// ===========================
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SmErrorT sm_service_group_api_recover( char service_group_name[],
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bool escalate_recovery, bool clear_fatal_condition )
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{
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if(( clear_fatal_condition )&&( escalate_recovery ))
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{
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SmServiceGroupT* service_group;
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SmErrorT error;
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service_group = sm_service_group_table_read( service_group_name );
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if( NULL == service_group )
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{
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DPRINTFE( "Failed to read service group (%s), error=%s.",
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service_group_name, sm_error_str(SM_NOT_FOUND) );
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return( SM_NOT_FOUND );
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}
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if( service_group->fatal_error_reboot )
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{
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char reason_text[SM_LOG_REASON_TEXT_MAX_CHAR] = "";
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DPRINTFI( "Service group (%s) recovery from fatal condition "
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"escalated to a reboot.", service_group->name );
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snprintf( reason_text, sizeof(reason_text), "service group (%s) "
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"recovery from fatal condition escalated to a reboot.",
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service_group->name );
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error = sm_node_api_reboot( reason_text );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to issue reboot to recover service "
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"group (%s), error=%s.", service_group->name,
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sm_error_str(SM_NOT_FOUND) );
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return( error );
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}
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}
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}
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return( sm_service_group_fsm_recover( service_group_name,
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clear_fatal_condition ) );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Initialize
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// ==============================
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SmErrorT sm_service_group_api_initialize( void )
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{
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SmErrorT error;
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error = sm_service_group_table_initialize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to initialize service group table, error=%s.",
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sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_member_table_initialize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to intialize service group member table, error=%s.",
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sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_fsm_initialize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to intialize service group fsm, error=%s.",
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sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_engine_initialize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to intialize service group engine, error=%s.",
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sm_error_str( error ) );
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return( error );
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}
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error = sm_service_group_fsm_register_callback(
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sm_service_group_api_service_group_callback );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to register for service group fsm state changes, "
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"error=%s.", sm_error_str( error ) );
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return( error );
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}
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return( SM_OKAY );
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}
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// ****************************************************************************
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// ****************************************************************************
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// Service Group API - Finalize
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// ============================
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SmErrorT sm_service_group_api_finalize( void )
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{
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SmErrorT error;
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error = sm_service_group_fsm_deregister_callback(
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sm_service_group_api_service_group_callback );
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to deregister for service group fsm state changes, "
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"error=%s.", sm_error_str( error ) );
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}
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error = sm_service_group_fsm_finalize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to finalize service group fsm, error=%s.",
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sm_error_str( error ) );
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}
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error = sm_service_group_engine_finalize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to finalize service group engine, error=%s.",
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sm_error_str( error ) );
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}
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error = sm_service_group_table_finalize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to finalize service group table, error=%s.",
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sm_error_str( error ) );
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}
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error = sm_service_group_member_table_finalize();
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if( SM_OKAY != error )
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{
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DPRINTFE( "Failed to finalize service group member table, error=%s.",
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sm_error_str( error ) );
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}
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return( SM_OKAY );
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}
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// ****************************************************************************
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