utils.h

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#ifndef RUN_COMMAND_UTILS_H
#define RUN_COMMAND_UTILS_H
 
#include "lex_string.h"
#include "my_alloc.h"
#include "mysql/strings/m_ctype.h"
class THD;
struct LEX;
struct MEM_ROOT;
struct CHARSET_INFO;
 
/**
  Sets multi-result state for SP being executed by the Statement_handle
  family.
 
  For SQL SP, flags required for multi-result are set while parsing SP
  statements. SPs for which parsing its statement is deferred to execution
  phase, multi-result state is set by this function.
 
  The function invoker need not have to reset this state. State is reset
  in the Sql_cmd_call::execute_inner.
 
  @param   thd     Thread Handle.
  @param   lex     Lex instance of SP statement.
 
  @returns false on Success and true if multi-result can not be used.
*/
bool set_sp_multi_result_state(THD *thd, LEX *lex);
 
/**
  Set query to be displayed in performance schema.
 
  @param   thd     Thread Handle.
*/
void set_query_for_display(THD *thd);
 
/**
 * @brief Potentially convert a string from src charset to destination charset
 * and store the returned string on the specified memroot
 *
 * @param mem_root The mem_root to store the result str
 * @param str The input string to be converted
 * @param length Length of the input string
 * @param src_cs Source charset
 * @param dst_cs Dest charset
 * @return LEX_CSTRING Pointer to the converted string on the memroot
 */
LEX_CSTRING convert_and_store(MEM_ROOT *mem_root, const char *str,
                              size_t length, const CHARSET_INFO *src_cs,
                              const CHARSET_INFO *dst_cs);
 
#endif