host_application_signal.h

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/* Copyright (c) 2018, 2023, Oracle and/or its affiliates.
 
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#ifndef HOST_APPLICATION_SIGNAL_H
#define HOST_APPLICATION_SIGNAL_H
 
#include <mysql/components/service.h>
 
enum host_application_signal_signals {
  HOST_APPLICATION_SIGNAL_SHUTDOWN =
      0,                            ///< shut the application down. no argument
  HOST_APPLICATION_SIGNAL_LAST = 1  ///< Internal. Not a signal Keep that last
};
/**
  @ingroup group_components_services_inventory
 
  A service to deliver a signal to host application.
 
  Typically there'll be just one implementation of this by the main
  application.
 
  Other parties interested in listening to shutdown may override the
  default implementation with a broadcast one and have multiple implementations
  receiving the shutdown signal. Or do message queueing to a set of background
  threads etc.
 
  @sa mysql_component_host_application_signal_imp
*/
BEGIN_SERVICE_DEFINITION(host_application_signal)
/**
  Send a signal.
 
  Can send one of @ref host_application_signal_signals
 
  @param signal_no The signal to trigger
  @param arg Signal dependent argument
  @return Status of performed operation
  @retval false success (valid password)
  @retval true failure (invalid password)
 
  @sa my_host_application_signal
*/
DECLARE_BOOL_METHOD(signal, (int signal_no, void *arg));
 
END_SERVICE_DEFINITION(host_application_signal)
 
#endif /* HOST_APPLICATION_SIGNAL_H */