auto_thd.h

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/* Copyright (c) 2016, 2023, Oracle and/or its affiliates.
 
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it under the terms of the GNU General Public License, version 2.0,
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef AUTO_THD_H
#define AUTO_THD_H
 
#include <sys/types.h>
 
#include "my_compiler.h"
#include "sql/error_handler.h"
#include "sql/sql_error.h"
 
/**
  Self destroying THD.
*/
class Auto_THD : public Internal_error_handler {
 public:
  /**
    Create THD object and initialize internal variables.
  */
  Auto_THD();
 
  /**
    Deinitialize THD.
  */
  ~Auto_THD() override;
 
  /**
    Error handler that prints error message on to the error log.
 
    @param thd       Current THD.
    @param sql_errno Error id.
    @param sqlstate  State of the SQL error.
    @param level     Error level.
    @param msg       Message to be reported.
 
    @return This function always return false.
  */
  bool handle_condition(class THD *thd [[maybe_unused]],
                        uint sql_errno [[maybe_unused]],
                        const char *sqlstate [[maybe_unused]],
                        Sql_condition::enum_severity_level *level
                        [[maybe_unused]],
                        const char *msg) override;
 
  /** Thd associated with the object. */
  class THD *thd;
};
 
#endif  // AUTO_THD_H