pipeline_factory.h

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/* Copyright (c) 2013, 2024, Oracle and/or its affiliates.
 
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#ifndef PIPELINE_FACTORY_INCLUDED
#define PIPELINE_FACTORY_INCLUDED
 
#include "plugin/group_replication/include/pipeline_interfaces.h"
 
/**
  @enum Handler_id
 
  Enumeration type for the different types of handlers.
*/
enum Handler_id {
  CERTIFICATION_HANDLER,
  SQL_THREAD_APPLICATION_HANDLER,
  CATALOGING_HANDLER,
};
 
/**
  @enum Handler_id
 
  Enumeration type for the different types of handlers.
*/
enum Handler_pipeline_type { STANDARD_GROUP_REPLICATION_PIPELINE = 0 };
 
/**
  This method joins the two above method, assembling a pipeline accordingly
  with the given configuration.
 
  @param[in]    pipeline_type    the selected pipeline
  @param[out]   pipeline         the assembled pipeline
 
  @return the end status
    @retval 0      OK
    @retval !=0    Error returned on the execution
*/
int get_pipeline(Handler_pipeline_type pipeline_type, Event_handler **pipeline);
 
/**
  This method returns the configured handlers for the received pipeline.
 
  @param[in]    pipeline_type    the selected pipeline
  @param[out]   pipeline_conf    the returned list of handler ids
 
  @return the number of handlers in the pipeline
*/
int get_pipeline_configuration(Handler_pipeline_type pipeline_type,
                               Handler_id **pipeline_conf);
 
/**
  This method configures the pipeline accordingly to the received handlers.
 
  Taking the received handlers, this method initializes each one of them,
  appending them to the pipeline. It also checks the handler role, checking
  for duplicated handlers that were marked as being unique.
 
  @param[out]  pipeline            the pipeline to configure
  @param[in]   handler_list        the list of handler ids
  @param[in]   num_handlers        the number of handlers to configure
 
  @return the end status
    @retval 0      OK
    @retval !=0    Error returned on the execution
*/
int configure_pipeline(Event_handler **pipeline, Handler_id handler_list[],
                       int num_handlers);
 
#endif /* PIPELINE_FACTORY_INCLUDED */